Data Communication And Networks 02
- A
computer network permits sharing of
- Resources
- Information
- Both a & b
- None
of these
- The
first operational computer network in the world was the _________ for the
United States Department of Defense
- ARPANET
- ERNET
- SKYNET
- DARPANET
-
- ATM stands
for
- Automatic
taller machine
- Automated teller machine
- Automatic
transfer machine
- Automated
transfer machine
- _______ is the technology that connects
the machines and people within a site in a small area
- LAN
- MAN
- WAN
- None
of these
- ______
is a network that covers geographic areas that are larger, such as
districts or cities
- LAN
- MAN
- WAN
- None
of these
-
- ______
is a network that this technology connects sites that are in diverse
locations
- LAN
- MAN
- WAN
- None
of these
- ______
is a collection of point-to-point links that may form a circle
- LAN
- MAN
- WAN
- Ring topology
- ______
refers to tone signals used for various control purposes via the telephone
network
- SMS
- DTMF
- GSM
- None
of these
- LAN is
a network that is restricted to a relatively
- Small area
- Large
area
- Both
a & b
- None
of these
- The
components used by LANs can be categorized into
- Hardware
- Cabling
protocols
- Standards
- All of these
-
- The
various LAN protocols are
- Ethernet
- Token
ring
- Both
a & b
- None
of these
- The Institute
of Electrical and Electronics
Engineers established a project named IEEE project 802 during the year
_____
- In
1985, the committee issued a set of ___ standards
- ISO
revised these standards and reintroduced them as ISO 8802 standards during
____
- The
following are the important standards proposed by IEEE
- IEEE
802.1- overview and relationship among the various IEEE standards
- IEEE
802.3 or CSMA/CD bus
- IEEE
802.4 or token bus
- IEEE
802.5 or token ring
- IEEE
802.6 or MAN protocol
- All of these
- When compared
with the OSI reference model, the IEEE standard contains the following
layers:
- Physical
layer
- Medium
access control(MAC) equivalent to the lower part of the OSI data link
layer
- Logical
link layer(LAC) equivalent to the upper part of the data link layer
- Network
layer, the OSI network layer, that performs some of the higher order
layer functions
- All of these
- The
802.2 compatible interfaces provide two major types of services, which are
- Unacknowledged
- Connectionless
- Both a & b
- None
of these
- The
________ follows the ring topology
- IBM
of LAN
- LAN of IBM
- Both
a & b
- None
of these
-
- In a
token ring, the stations are connected to the __________
- Logical ring
- Physical
ring
- Both
a & b
- None
of these
-
- A
_________ preamble is used to synchronize the receiver’s clock
- Four-byte
- Three-byte
- Two-byte
- One-byte
- Start
of frame and end of frame are used to _______ the frame boundaries
- Frame
control is also used to specify the ________
- Frame
technique
- Frame type
- Both
a & b
- None
of these
- The
destination address and source address field is similar to
- IEEE 802.3 or CSMA/CD bus
- IEEE
802.4 or token bus
- IEEE
802.5 or token ring
- IEEE
802.6 or MAN protocol
- Info
field is used to ________
- Send
messages
- Send data
- Delete
data
- Create
data
- The
maximum length of this field is _______ when the address is _______
- 8182
& 2 bits
- 8182 & 2 bytes
- 8182
& 4 bits
- 8182
& 4 bytes
- The
maximum length of this field is _______ when the address is _______
- 8174
bytes & 6 bits
- 8174 bytes & 6 bytes
- 8174
bytes & 8 bytes
- 8174
bits & 6 bytes
- Check
sum is used for
- Error
correction
- Error detection
- Both
a & b
- None
of these
-
- Solicit-successor
frame contains the address of the
- Sending
station
- Successor
- Both a & b
- None
of these
- Government
agencies and local libraries often use a MAN to connect to private
- Industries
- Citizens
- Both a & b
- None
of these
-
- The
geographical limit of a MAN may
- Not
span a city
- Span a city
- Either
span or not
- None
of these
- In
MAN, different LANs are connected through a local _______
- Telephone exchange
- Computer
wires
- Both
a & b
- None
of these
- Some
of the widely used protocols for MAN are
- RS-232
- X.25
- Frame
relay
- Asynchronous
transfer mode(ATM)
- ISDN
- OC-3lines(155
Mbps)
- ADSL(asymmetric
digital subscriber line)
- All of the above
- MAN stands for
- Machine
area network
- Metropolitan area network
- Metropolitan
asynchronous network
- Machine
asynchronous network
- WAN
technologies function at the lower three layers of the OSI reference model
- Physical
layer
- Data
link layer
- Network
layer
- All of these
-
- WAN
also uses switching technology provided by ____________
- Local
exchange
- Long
distance carrier
- Both a & b
- Small
distance carrier
- Packet switching technologies such as
_____________ are used to implement WAN along with statistical
multiplexing
- ATM
- Frame
relay
- Switched
multimeagabit data service
- X.25
- All of these
- MAN
uses only a
- Long
exchange
- Local carrier
- Both
a & b
- None
of these
-
- In
MAN, a network is accomplished using components
- Hardware
- Protocols
- Both a & b
- None
of these
-
- In
MAN, a network is accomplished using basic components
- Hardware
- Protocols(software)
- Applications(useful
software)
- All of the above
- The
Internet(internetworking) ha become a potent tool for
- Education
- Productivity
- Enlightenment
- All of these
- The
Government of India had set up ERNET in ______ to provide TCP/IP
connections for education and research communities in India
- The
liberalized policies encouraged many private players like
- DISHNET
- JAINTV
- Mantra
online
- All of these
- The
other government organizations like _______________ to enter this field to
bring the Internet to common people
- NIC
- VSNL
- MTNL
- All of the above
-
- The
major network infrastructure available in the country has two types of WAN
- Terrestrial
WAN
- VSAT
WAN
- Both a & b
- None
of these
-
- Following
are different options for setting up the Intranet, education portal or
e-commerce, etc………….
- Leased
line
- Dial
Up connection
- VSAT
- Radio
link
- All of the above
- The networks can be broadly divided into
three categories namely
- LAN
for a single building
- MAN-
single city
- WAN-country,
continent and planet
- All of the above
- The
host to terminal connection is a conventional type of connection between
- Main
frame
- Dumb
terminals
- Both a & b
- None
of these
- TC
means
- Terminal
Computer
- Terminal Controller
- Technical
Computer
- None
of these
- A
collection of interconnected networks is known as
- Internetwork
- Internet
- Network
- None
of these
-
- The
type of packet format supported by X.25 are as follows
- Control
packet
- Data
packet
- Both a & b
- None
of these
- A
terminal controller may be used to integrate two or more terminals for
connection with a
- Low
speed line
- High
speed line
- Single
WAN line
- Both a & b
- ISDN
stands for
- Integrated Service Digital Network
- Interaction
System Digital Network
- Inexpensive
System Digital Network
- None
of these
- For
LAN to LAN connection, which are mainly used
- ISDN
- Leased
Line
- Frame
relay
- All of these
-
- Which
function allows selection of the appropriate route based on IP header
information and sends packets through this route
- Forwarding function
- Filtering
function
- Both
a & b
- None
of these
- Which
function allows dumping of invalid packets for a specific network instead
of forwarding
- Forwarding
function
- Filtering function
- Both
a & b
- None
of these
- Routing
in the same network may be termed as
- Local routing
- Static
routing
- Dynamic
routing
- Distributing
routing
- The
routing table possessed by a router includes
- Combination
of destination address
- Next
hops that corresponds to that address
- Both a & b
- None
of these
- If
there is a fixed route information to each router, is called
- Fixed routing
- Dynamic
routing
- Both
a & b
- Distributed
routing
- If
routing information is automatically updated by routers when changes are
made to the network configuration are called
-
- Fixed
routing
- Dynamic routing
- Both
a & b
- Distributed
routing
- The
processing required to transferring a packet from the source host to the
destination host or to the relaying router are called
- Fixed
routing
- Dynamic
routing
- Local routing
- Distributed
routing
-
- ARP
stands for
- Address Resolution Protocol
- Address
Routing Protocol
- Address
Routing Packet
- Address
Routing Program
- If two
or more routers are connected to the same subnet, the network
administration determines which of the routers the messages should be sent
to.. to eliminate this problem._____ are used
- MAC
messages
- ICMP messages
- INDP
messages
- IMCP
messages
-
- If two
or more routers are available in distributed routing, which route should
be selected
- High
possible cost
- Least
possible cost
- Link
cost
- Both b & c
- If
there is no any specific intention, the cost for a single link is usually
set at ___
- Multi-path
routing can be achieved in
- Distance-vector
type
- Link-state
type
- Both a & b
- None
of these
- If there are two or more routes to reach
the same destination at the same cost, which method is applicable to
determine how to select this route
- Round
robin method
- Random
selection method
- Mixed
method
- All of these
- The
Mixed method remains _________ for the amount of processing required
- Effective
- Ineffective
- Both
a & b
- None
of these
- A set of networks interconnected by
routers within a specific area using the same routing protocol is called
- Domain
- Backbone
- Inter-domain
router
- All
of these
- A
network composed of inter-domain router is called
- Domain
- Backbone
- Inter-domain
router
- All
of these
- A
router within a specific domain is called
- Domain
- Backbone
- Inter-domain router
- All
of these
- Two or
more domains may be further combined to form a
- Domain
- Backbone
- Inter-domain
router
- Higher-order domain
- Each
domain is also called
- Operation domain
- Backbone
- Inter-domain
- All
of these
-
- Routing
protocol in such an internet system can be broadly divided into two types
named
- Intra-
domain routing
- Inter-
domain routing
- Both a & b
- None
of these
- To
communication between two or more domains, which are used
- Intra-
domain routing
- Inter-
domain routing
- Both a & b
- None
of these
- Some
Intra-domain protocols are
- RIP(Routing
Information Protocol)
- OSPF(Open
Shortest Path First)
- IS-IS(Intermediate
System to Intermediate System )
- All of these
- ________
are the algorithms are available to update contents of routing tables
- Distance-Vector
Protocol
- Link-State
Protocol
- Both a & b
- None
of these
- Distance
vector protocols are
- RIP
- IGRP(Interior
Gateway Routing Protocol )
- Both a & b
- None
of these
- RIP
stands for
- Routing Information Protocol
- Routing
Intra Protocol
- Route Intermediate Protocol
- Resolution
Information Protocol
- The
Link state protocol are
- OSPF(Open
Shortest Path First)
- IS-IS(Intermediate
System to Intermediate System)
- Both a & b
- None
of these
- In
link state protocol, the load on router will be
- Small
- Large
- Medium
- None
of these
-
- For large load on router, the processing
is
- Complex
- Simple
- Both
a & b
- None
of these
- Which
protocol are used in link state type routing protocol developed for use in
large scale network
- OSPF(Open Shortest Path First)
- IS-IS(Intermediate
System to Intermediate System)
- Both
a & b
- None
of these
- The
common part of OSPF packet format is
- Packet
type
- Packet
length
- Router
ID
- Area
ID
- Authentication
type
- Authentication
data
- Version
- Checksum
- Individual
information part
- All of these
- The
router may be classified into three types named
- Domain
border router
- Internal
router
- Area
border router
- All of these
- OSPF
is a hierarchical routing composed of
- Intra-area
routing
- Inter-area
routing
- Inter-domain
routing
- All of these
- Serial Line IP
- Standard
Line IP
- Serial
Link IP
- Standard
Link IP
- The
word PPP stands for
- Point to Point Protocol
- Packet
to Packet Protocol
- Point
to Packet Protocol
- Packet
to Point Protocol
- ________
is used mainly for connection between LANs that are remotely located from
one another
- SLIP
- PPP
- Both
a & b
- None
of these
-
- _________ is used for connection between
routers or equipment that must be highly reliable
- SLIP
- PPP
- Both
a & b
- None
of these
- The
wireless LANs offers the obvious advantage of
- Avoidance
of cabling cost
- Provide
LAN capabilities in temporary quarters
- Both a & b
- None
of these
- The
bandwidth of wireless radio LAN is
- 24Mbps
- 2 Mbps
- 4 Mbps
- 8 Mbps
- The
frequency range of wireless LAN is
- 900 MHz
bands
- 2GHz
bands
- 5 GHz
bands
- All of these
- A hub antennae is located at a _________
from where line-of-sight can be established with the various terminal
antennae.
- Highest
point
- Lowest
point
- Central point
- None
of these
- The
effective throughput is more in the range of _________ per hub
- 1 to 2 Mbps
- 2 to
3 Mbps
- 3 to
4 Mbps
- 4 to
5 Mbps
- PDA
stands for
- Personal
Device Assistant
- Pointer
Description Assistant
- Personal Digital Assistant
- Personal
Description Analog
- USB
stands for
- University
System Bus
- Universal
System Board
- University
System Board
- University Serial Bus
- _______
are wireless network standard with a data rate of only 2Mbps
- IEEE802.11a
- IEEE802.11b
- IEEE803.11a
- IEEE803.11b
- _______
are wireless network standard with a data rate of only11Mbps
- IEEE802.11a
- IEEE802.11b
- IEEE803.11a
- IEEE803.11b
- IEEE802.11a
and IEEE802.11b have a distance limitation up to _____ from the access
point router
- 1000feet
- 100feet
- 101feet
- 110feet
- IEEE802.11a
and IEEE802.11b uses _____ band
- 1.4GHz
- 2.4GHz
- 3.4GHz
- 4.4GHz
- ________
technology allows speeds up to 54Mbps
- IEEE802.11g
- IEEE803.11a
- IEEE803.11b
- IEEE802.11a
-
- ________
allows the movement of device with or without user
- User
mobility
- Device portability
- Both
a & b
- None
of these
-
- A user
can access to the same or similar telecommunication services at different
places
- User mobility
- Device
portability
- Both
a & b
- None
of these
-
- A
number of mobile and wireless device are
- Sensor
- Mobile-phone
- PDA
- Embedded
controller
- Pager
- Palmtop
- Notebook
- All of these
-
- The
availability of _________ made the wireless communication popular among
the masses.
- Low
cost microprocessor
- Digital
switching
- Both a & b
- None
of these
- Cellular
radio has another popular names as
- Cellular
mobile
- Cellular
phone
- Both a & b
- None
of these
- Radio
is basically a device, which has
- Receiver
- Transmitter
- Both a & b
- None
of these
- Wireless
communication can be carried out
- Use
of radio
- Without
using radio
- Both a & b
- Without
use of video
- The
term radio may be defined as consisting of ______________ of the signal
- Modulation
- Radiation
- Both a & b
- None
of these
-
- A
transmitter and an antenna are used to ____________ the modulated signal
within radio spectrum
- Modulate
- Radiate
- Both
a & b
- None
of these
-
- In
telephone system as we know that a voice with bandwidth of approximately
____ modulates the current of a telephone line
- Wireless
ca be defined as the ____________________ by means of high frequency
electrical waves without a connecting wire
- Radio
transmission
- Reception
of signals
- Both a & b
- None
of these
- The
frequency of a cell may be ________ after the interference zone
- Reused
- Used
- Not
be used
- Not
be reused
- PSTN
stands for
- Public
Switched Transport Network
- Public
System Transport Network
- Public
System Transfer Network
- Public Switched Telephone Network
- The
radii of a cell may vary from ___________ in a building to a city
- One
of meters to tens of kilometers
- Tens of meters to tens of kilometers
- Hundreds
of meters to tens of kilometers
- Hundreds
of meters to hundreds of kilometers
- The
shape of cell mat not be a ___________ and depends up on the environment
- Hexagon
- Circle
- Pentagon
- Both a & b
- SDM
stands for
- System
Division Multiple
- System
Division Multiplexing
- Space Division Multiplexing
- System
Double Multiplexing
- Frequencies
for communication may vary from very high frequency to ________
- Medium
range
- Microwave range
- Digital
range
- None
of these
-
- The
signal may be analog or digital with _______
- Amplitude
- Frequency
- Phase
modulation
- All of these
- The
multiplexing and access techniques are
- SDM(Space
Division Multiplexing)
- FDM(Frequency
Division Multiplexing)
- TDM(Time
Division Multiplexing)
- CDM(Code
Division Multiplexing)
- All of these
- The
advantages of mobile communication may be looked into
- Higher
capacity
- Higher
number of users
- Less
transmission power needed
- More
robust
- Decentralized
base station deals with interference
- Transmission
area
- All of these
- The disadvantages
of mobile communication are
- Fixed
network needed for the base stations
- Handover(changing
from one cell to another) necessary
- Interference
with other cells such as co-channel, adjacent-channel
- All of these
- The
important issues on wireless communication are
- Cell
sizing
- Frequency
reuse planning
- Channel
allocation strategies
- All of these
- In the
beginning around 1980, analog cellular telephone systems were developing
in ___________
- The
proposed system was expected to meet certain as mentioned as
- Good
subjective speech quality
- Low
terminal and service cost
- Support
for international terminals
- Spectral
efficiency
- ISDN
compatibility
- All of these
- ETSI stands for
- European Telecommunication Standards
Institute
- European
Telephone Standards Institute
- European
Telecommunication Systems Institute
- European
Telecom Standards Institute
- GSM(Global
System for Mobile Communication) is a _______ digital mobile telephones
standard using a combination Time Division Multiple Access(TDMA) and
FDMA(Frequency Division Multiple Access)
- First
generation
- Second generation
- Third
generation
- None
of these
-
- GSM
provides only _______ data connection
- 8.6kbps
- 9.6kbps
- 7.6kbps
- 8.8kbps
- The
uplink and downlink frequencies for GSM are different and therefore a
channel has a pair of frequencies _______ apart
- The
separation between uplink and downlink frequencies are called
- Duplex distance
- Double
distance
- Triplex
distance
- None
of these
- In a
channel the separation between adjacent carrier frequencies is known as
channel separation which is _______ in case of GSM
- 100kHz
- 200 kHz
- 300 kHz
- 400 kHz
- The
services supported by GSM are
- Telephony
- Fax
and SMS
- Call
forwarding
- Caller
ID
- Call
waiting
- All of these
- GSM
supports data at rates up to 9.6kbps on
- POTS(Plain
Old Telephone Service)
- ISDN
- Packet
Switched Public Data Networks
- Circuit
Switched Public Data Networks
- All of these
- The access
methods and protocols for GSM may be from
- X.25
- X.32
- Both a & b
- None
of these
- There
are basic types of services offered through GSM are
- Telephony
or teleservices
- Data
or bearer services
- Supplementary
services
- All of these
- The
supplementary services are used to enhance the features of
- Bearer
- Teleservices
- Both a & b
- None
of these
-
- Dual
tone signals are used for various control purposes via the
- Telephone
network
- Different
from dual pulses
- Both a & b
- None
of these
- SMS(Short
Message Service) is a message consisting of a maximum of ______ alphanumeric
characters
- GSM
supports ______ Group 3 facsimile
- Call
forwarding is a ________________
- Telephony
or teleservices
- Data
or bearer services
- Supplementary services
- All
of these
- The
other services of call forwarding are
- Cell
broadcast, voice mail, fax mail
- Barring
of outgoing and incoming calls conditionally
- Call
hold, call waiting, conferencing
- Closed
user groups
- All of these
- GSM
consists of many subsystems, such as the
- Mobile
station(MS)
- Base
station subsystem(BSS)
- Network
and Switching subsystem(NSS)
- Operation
subsystem(OSS)
- All of these
- Which
forms a radio subsystem
- Mobile
station
- Base
station subsystem
- Both a & b
- None
of these
- The
generic GSM network architecture
which is composed of three subsystem are__________
- Radio
subsystem (RSS)
- Network
and switching subsystem
- Operation
subsystem
- All of these
- The
RSS is basically consisting of radio specific equipment such as
____________ to control the radio link
- Mobile
station(MS)
- Base
station subsystem(BSS)
- Both a & b
- None
of these
- The
chief components of RSS are
- BSS
- Cellular
layout
- Base
station controller(BSC)
- All of these
- SIM
stands for
- System
Identity Module
- Subscriber Identity Module
- Subscriber
Identity Modem
- Subscriber
Input Modem
- MS
contains a SIM card in the form of a very _______ inside the equipment
- Large
chip
- Small chip
- Both
a & b
- None
of these
- Cell
site is defined as the location where _______________ are placed
- Base
station
- Antennas
- Both a & b
- None
of these
-
- Cells
are the basic constituents of a cellular layouts with ________
- Cell sites
- Cell
systems
- Cell
forwarding
- None
of these
- A cell
is simply represented by simple ____________
- Pentagon
- Hexagon
- Both
a & b
- None
of these
-
- The
size of cells in case of GSM and Personal Communication Service(PCS) are
much smaller in the range of _______
- The
portions covered by the antenna are called
- Portions
- Sectors
- Cell
sector
- None
of these
- The
BTS or Base Transceiver Station is also called
- BTS
are housed with all radio equipments such as
- Antennas
- Signal
processors
- Amplifiers
- All of these
-
- Base
station may also be placed near
center of cell and known as
- Excited
cell
- Center excited cell
- Center
cell
- None
of these
- The
actual cell is the _____ hexagon, with the towers at the corners
- Red
- Blue
- Red and blue
- None
of these
- Antenna
always transmits inward to each cell and area served depends on
- Topography
- Population
- Traffic
- All of these
- Network
and switching subsystem is composed of the ________________
- Mobile
Services Switching Center(MSC)
- Home
Location Register(HLR)
- Visitor
Location Register(VLR)
- All of these
- The mobile stations(MS) communicates only
via the
- A BTS
is connected to a mobile station via the
- BTS
- BSS
- Abis
interface with BSC
- Um
interface
- Both c & d
- The Um
interface basically consists of _________ for wireless transmission
- FDMA
- TDMA
- CDMA
- All of these
- The
FDMA involves the division up to the maximum of _______
bandwidth into 124 carrier
frequencies spaced 200 kHz apart
- The
FDMA channel are further divided in time with a burst period of
approximately _______ using a TDMA technique
- 0.277ms
- 0.377ms
- 0.477ms
- 0.577ms
- The
eight burst period are grouped into a TDMA frame which forms the basic
unit for definition of
- Physical
channel
- Logical channel
- Both
a & b
- None
of these
- One _______ is one burst period per TDMA
frame
- Physical channel
- Logical
channel
- Both
a & b
- None
of these
- The
more channel increases the
- GSM
- No of base station
- No
of mobile station
- Transmitter
power
- The
more channel decreases the
- GSM
- No
of base station
- No
of mobile station
- Transmitter power
- The
other popular name for MSC(Mobile
Switching Center
) is
- BS(Base
Station)
- MS(Mobile
Switch)
- MTSO(Mobile
Telecommunication Switching Office)
- Both b & c
- MSC is
connected to a ____________ at one end
- Mobile
station
- Base station
- Transmitter
station
- None
of these
- MSC is
connected to a ____________ at other end
- MSCs
- PSTN
- ISDN
- None
of these
- MSCs
acts as a __________
- Switching
- Local Switching exchange
- Remote
Switching exchange
- None
of these
- The
MSC also provides all the functionality such as
- Registration
- Handover
- Authentication
- Location
updating
- Call
routing to a roaming subscriber
- All of these
- The
MSC provided to establish link with other fixed networks termed as
- Local
MSC
- Router
MSC
- Gateway MSC
- Remote
MSC
- The
main task of MSC are entrusted upon as
- Interworking
function(IWF)
- Mobility
management operations
- Data
service unit(DSU)
- SS7
- All of these
- Name
the two chief databases
- Home
location register(HLR)
- Visitor
location register(VLR)
- Both a & b
- None
of these
- Which has its main task as associated
with MSC
- Home location register
- Visitor
location register
- Both
a & b
- None
of these
-
- IMEI
stands for
- International mobile equipment
identity
- International
mobile equipment information
- Interworking
mobile equipment information
- Interworking
management equipment information
- Subscriber’s
all administrative information along with the current location in GSM
network including in database of HLR are
- IMEI
number
- Directory
number
- Current
city
- Last
visited area
- The
class of service subscriber
- All of these
- HLR
keeps the ____________ of each mobile that belongs to the MSC to which it
is interacting
- Last
location
- First
location
- Current location
- None
of these
- HLR
performs the functions such as _____________ to subscribers at their
current locations by using user profile information
- Delivery
of calls
- Information
and messages
- Both a & b
- None
of these
- HLR
maintains user information in the form of
- Static
information
- Dynamic information
- Both a & b
- None
of these
- The
static information is the
- International
Mobile Subscriber Identity
- Service
subscription information authentication key
- Account
status
- All of these
- The
dynamic information is the _________ area of the mobile subscriber which
is the identity of the currently serving VLR
- Last
location
- First
location
- Current location
- None
of these
- The
HLR handles SS7 transactions with both
- MSCs
- VLR
nodes
- Both a & b
- None
of these
-
- VLR
main tasks are association with
- MSC
- IMSI
- TMSI
- Roaming
- All of these
- In nutshell
we can say that both the ___________work together to provide local
connections as well as roaming outside the local service area
- HLR
- VLR
- Both a & b
- None
of these
-
- The
operations and Maintenance Center
oversees the all important for__________
- Proper
operation
- Setup
of the network
- Provides
Telecommunication Management Network(TMN)
- All of these
- Operation
Subsystem also provides interface NSS via O-Interface that may be
__________
- X.25 interface
- X.32
interface
- X.23
interface
- None
of these
-
- Authentications
Center(AuC) is used for
- Authentication
- Security
by generating authentication algorithms
- Cryptographic
codes
- All of these
- AuC is
responsible for maintaining all data needed to authenticate a call and to
encrypt __________________
- Voice
traffic
- Signaling
messages
- Both a & b
- None
of these
- EIR
stands for
- Equipment Identification Register
- Equipment
Identification Remote
- Equipment
Information Remote
- Equipment
Information Register
- EIR
fulfills the ______________ requirement of GSM
- Security
- Authentication
- Both a & b
- None
of these
- SIM
card has a secret key for ________________ over the radio channel
- Authentication
- Encryption
- Both a & b
- None
of these
-
- GSM
network checks the __________________ of a mobile device through EIR
database
- Type
- Serial
number
- Both a & b
- None
of these
-
- EIR
maintains a database of ______________
- Manufacturing
devices
- Malfunctioning devices
- Functioning
devices
- None
of these
- Um
is the link between a
- Mobile
station
- Base
station
- Both a & b
- None
of these
-
- GSM
900 operates on a frequency range of _________ for uplink
- 890-910MHz
- 890-915MHz.
- 890-901MHz
- 890-911MHz
-
- GSM
900 operates on a frequency range of _________ for downlink
- 935-960MHz
- 940-970MHz
- 945-950MHz
- 925-960MHz
- FDM is
used to ___________ the available frequency band in GSM
- Addition
- Divide
- Both
a & b
- None
of these
- The
GSM has many burst types such as
- Normal
burst
- Access
burst
- Synchronization
burst
- Frequency
correction burst
- Dummy
burst
- All of these
- The normal burst period lasts
- Approximately 577ms or 15/26ms
- Approximately
572ms
- Approximately
567ms
- Approximately
578ms
- Which
is provided to avoid overlap with other burst
- Frequency
space
- Guard space
- Information
space
- Bandwidth
space
- Which
is a dedicated time slots within a data or bit stream which repeats after
a certain period of time
- Frequency
- Amplitude
- Channel
- Normal
burst
- The
channel can be further divided into
- Dedicated
channel
- Common
channel
- Both a & b
- None
of these
- Both
the dedicated and common channel are allocated to a
- Base
station
- Mobile station
- Mobile
switch
- All
of these
-
- When a
slot repeated every 4.615ms constitute a _______ channel which can be
split into several logical channel
- Logical
- Physical
- Both
a & b
- None
of these
- TDMA is used to split carrier frequency
of 200kHz into_______ time slots
- GSM
900 has _____ physical full duplex channels
- GSM
900 has _____ physical half duplex channels
- Time
slot is also known as
- Logical channel
- Physical
channel
- Both
a & b
- None
of these
-
- A
Traffic Channel(TCH) is defined for speech and data at a rates of
- 9.6kb/s
- 4.8kb/s
- 2.4kb/s
- All of these
-
- The
length of 24 TDMA frames are kept
- How many frames are included for traffic
in 26TDMA frames
- How
many frames are included for Slow Associated Control Channel(SACCH) in
26TDMA frames
- How
many frames are included for currently unused in 26TDMA frames
- Which
are basically used to control the logical channels
- CCHs
- TCH
- Both
a & b
- None
of these
-
- Depending
upon the task performed by the Control Channels(CCHs),they are categorized
in
- Broadcast
Control Channels(BCCH)
- Common
Control Channels(CCCH)
- Dedicated
Control Channels(DCCH)
- All of these
- The
different control channel are accessed by
- Idle
mode
- Dedicated
mode mobile
- Both a & b
- None
of these
- Which
is a unidirectional downlink point to multi-point signaling channel from
BTS to MS
- BCCH
- CCCH
- DCCH
- All
of these
- Which
is bi-directional point to multi-point signaling channel that exchanges
the signaling information for network access management and transport
information regarding connection setup between MS and BTS
-
- BCCH
- CCCH
- DCCH
- All
of these
-
- Which
is bidirectional and are multiplexed on a standard channel for
registration, location updating and authentication in order to set up a call
or TCH
- BCCH
- CCCH
- DCCH
- All
of these
- GSM
specifies a multiplexing scheme to integrate several frames where a
periodic pattern of 26 slots occurs in all TDM frames with a TCH , the
combination of these frames are called
- Multiframe
- Traffic-multiframe
- Multiprogramming
- None
of these
- Out of
26 frames, 24 are used for traffic, one is used for the __________ and one
is currently unused
- SACCH(Slow Associated Control
Channel)
- FACCH(Fast
Associated Control Channel)
- BCCH
- CCCH
- GSM is
already mentioned that the duration of one TDMA frame is
- 4.516ms
- 4.615ms
- 4.156ms
- 4.165ms
- Control
multiframe comprises of 51 TDMA frame with a duration of ________
- 234.5ms
- 233.5ms
- 235.4ms
- 235.3ms
- 2048
superframes constitute a ________
- hyperframe
- lowerframe
- strongerframe
- none
of these
- GSM
has three functional layers
- Physical
layer
- Data
link layer
- Layer
three in correspondence with OSI model
- All of these
- In OSI
model, the lower three layers usually terminate in the ______ but it is
not true in case of GSM
- Another
node
- Same node
- Two
nodes
- None
of these
- In
protocols, the RR part of layer three is spread over the
- MS
- BTS
- BSC
- MSC
- All of these
- Physical
layer is the ___________ which provides transfer of bit streams over the
physical radio links through Um interface
- Lowest layer
- Highest
layer
- First
layer
- None
of these
- Physical
layer handles all radio specific functions such as ________________
- Creation
of bursts
- Multiplexing
of bursts into TDMA frame
- Synchronization
with BTS
- Channel
coding, error detection and correction
- Quality
control on the downlink
- All of these
- The
digital modulation and security related issues such as encryption of
digital data are carried over the radio interface between ____________
- MS
- BTS
- Both a & b
- None
of these
-
- The
communication on Abis interface between _____ and BSC is
established by using the standard LAPD
- A
reliable data link service is provided between _________ through Message
Transfer Part of SS7
- BSC
- MSC
- Both a & b
- None
of these
-
- The
layer three chiefly comprises of _____________
- RR(radio
resource management)
- MM(Mobility
management)
- CM(call
control management)
- All of these
- What
are the functions of mobility management
- Location
update
- Authentication
- Temporary
Mobile Subscriber Identity
- Reallocation
- All of these
- Establishment
- Maintenance
- Termination
of a circuit-switched call
- All of these
-
- CM
performs other supporting
- Supplementary
service(SS)
- Short
Message Service(SMS)
- Both a & b
- None
of these
- The
radio resource management sublayer terminates at the
- The
radio resource management is used to establish physical connections over
the call-related signaling and traffic channels between the ______________
- The RR
layer is the part of RR layer is implemented in the BTS to provide
functions between the ___________
- The
__________ is also responsibility of the layers
- Handover
- Handoff
- Both a & b
- None
of these
- Which
uses signal strength measurements and cell congestion information to
determine when a handoff should occur
- Handoff
notifications are sent to respective ____ which in turn forward them to
HLRs
- The
mobility management sublayer on the _____ of the RR is terminated at the
MSC
- Establish
- Maintain
- Release
connections between the MS a
- The
network MSC
- All of these
- The Communication Management protocol
controls __________ call establishment
- first-to-end
- end-to-end
- end-to-first
- first-to-first
- CM
protocols are used in GSM network, these are
- Transaction
Capabilities Application Part(TCAP) protocol
- Mobile
Application Part(MAP) protocol
- Both a & b
- None
of these
- MAP is
used between _________in the form of query and response messages
- MSC
- VLR
- HLR
- AuC
- All of these
- ____________
Together with the MSC. Provide the call routing and roaming capabilities
of GSM where a subscriber can roam nationally and even internationally
- MSISDN
stands for
- Mobile Subscriber ISDN Number
- Mobile
Station ISDN Number
- Mobile
Switching ISDN Number
- Mobile
Standard ISDN Number
- Which
number caller used to reach a mobile subscriber
- MSISDN number
- IMSI
number
- TMSI
number
- MSRN
- MSISDN
number consists of
- Country
code(such as 91 for India)
- National
subscriber destination code
- Subscriber
number
- All of these
- Which
number of MSISDN is the address of the GSM provider
- Country
code(such as 91 for India)
- National subscriber destination code
- Subscriber
number
- All
of these
- Which
is a unique identification number allocated to each mobile subscriber
- MSISDN
Number
- IMSI Number
- TMSI
Number
- MSRN
- It
sits inside SIM card, which can be carried out anywhere and can be used in
any MS
- MSISDN
Number
- IMSI Number
- TMSI
Number
- MSRN
- The
IMSI number consists of
- MCC(Mobile
Country Code consisting of three digits)
- MNC(Mobile
Network Code consisting of two digits)
- MSIN(Mobile
Subscriber Identity Number consisting of ten digits)
- All of these
- Which
is used in the place of the IMSI for the definite identification and
addressing of the mobile station
- MSISDN
Number
- IMSI
Number
- TMSI Number
- MSRN
- In
TMSI nobody can determine the identity of the subscriber by listening to
the __________
- Video
channel
- Radio channel
- Audio
channel
- None
of these
-
- GSM
used the _______ byte TMSI for local subscriber identification
- Which
is a temporary location-dependent ISDN number assigned by the locally
responsible VLR to each mobile station in its area
- MSISDN
Number
- IMSI
Number
- TMSI
Number
- MSRN
- The
MSRN consists of
- VCC(Visitor
country code)
- VNDC(Visitor
national destination code)
- The
identification of the current MSC along with the subscriber number(SN)
- All of these
- GSM
call may be classified into two types namely
- MTC(Mobile
Terminated Call)
- MOC(Mobile
Originated Call)
- Both a & b
- None
of these
- ___________
becomes necessary when mobile moves from area of one BSC into another area
of the same or into another BSC
- Handoff
- Handover
- Haddon
- Handwork
- Handover
involves a number of procedures depending upon the location are
- Intra-cell
handover
- Inter-cell,
intra-BSC handover
- Inter-BSC,
intra-MSC handover
- Inter
MSC handover
- All of these
- Which
involve the transfer of connections from one channel to another channel on
the same BTS
- Intra-cell handover
- Inter-cell,
intra-BSC handover
- Inter-BSC,
intra-MSC handover
- Inter
MSC handover
- Which
involve the transfer of the connection from one BTS to another BTS on the
same BSC
- Intra-cell
handover
- Inter-cell, intra-BSC handover
- Inter-BSC,
intra-MSC handover
- Inter
MSC handover
- The
connections is transferred between BTS belonging to two different BSCs
within one MSC is called
- Intra-cell
handover
- Inter-cell,
intra-BSC handover
- Inter-BSC, intra-MSC handover
- Inter
MSC handover
- Which
involve the transfer of a connection to a BTS between two cells within
another MSC
- Intra-cell
handover
- Inter-cell,
intra-BSC handover
- Inter-BSC,
intra-MSC handover
- Inter MSC handover
- A
collection of interconnected networks is known as
- Internet
- Internetwork
- Network
- Internetworking
- The
process of interconnecting different network is called
- Internet
- Internetwork
- Network
- Internetworking
- The
internetworking protocol is known as
- The
Network element that connects individual network is known as
- Gateway
- Router
- TCP/IP
- Both a & b
- If
single computer network is divided into segments and router are added
between them it forms an
- Internet
- Internetwork
- Network
- Internetworking
- Which
was used as original term for an internetwork which meant a method for
connecting networks with disparate technologies
- Catenet
- Bridge
- PANs
- Novell
netware
- The computer network are of different
types…some are
- PANs(Personal
Area Networks)
- Novell
Netware
- Both
a & b
- None
of these
- The
word Internet and internet are
- Different
- Same
- Dependent
on each other
- None
of these
- Which
signifies the specific network model
- internet
- Internet
- Both
a & b
- None
of these
- Which
means generic interconnection of networks
- internet
- Internet
- Both
a & b
- None
of these
-
- Which
protocol provides a reliable data transfer
- Which
protocol provides a unreliable data transfer
- Every
computer has a unique address called
- The IP
address lies between
- 0 to
245
- 0 to
254
- 0 to 255
- 0 to
265
-
- DHCP
stands for
- Dynamic Host Configuration Protocol
- Digital
Host Communication Provider
- Digital
Host Communication Protocol
- Dynamic
Host Configuration Provider
- __________
is used for every computer needs one protocol stack for communicating on
the Internet
- Protocol stack
- Protocol
- Transmission
protocol
- None
of these
- Which
protocol layer uses the protocols are WWW, HTTP, FTP, SMTP, e-mail etc
- Application Layer Protocol
- Transport
Layer Protocol
- Internet
Layer Protocol
- Hardware
Layer
- Which
protocol uses TCP routes to an application on a computer by use of a port
number
- Application
Layer Protocol
- Transport Layer Protocol
- Internet
Layer Protocol
- Hardware
Layer
- Which
protocol moves IP packets to a specific computer by use of an IP address
- Application
Layer Protocol
- Transport
Layer Protocol
- Internet Layer Protocol
- Hardware
Layer
- Which
contains network interface cards, modems for phones or wireless lines for
converting binary packet data to network signals and vice versa
- Application
Layer Protocol
- Transport
Layer Protocol
- Internet
Layer Protocol
- Hardware Layer
- Hardware
layer handle raw
- Bytes
of data
- Bits of data
- Both
a & b
- None
of these
- Where
is the TCP layer is situated in the application layer in the protocol
stack
- Below
- Top
- Center
- None
of these
- TCP
uses port number to route correct application on the ___________
- Source
computer
- Destination computer
- Both
a & b
- None
of these
- TCP is
__________ in nature
- Textual
- Not textual
- None
of these
-
- TCP
also contains a ___ checksum
- 16bit
- 16byte
- 32bit
- 32byte
- What
is the port number of the HTTP
- What
is the port number of the SMTP
- What
is the port number of the Telnet
- What
is the port number of the FTP
- What
is the port number of the Quake III Arena
- Connection-oriented
- Reliable
- Both a & b
- None
of these
- Connectionless
- Unreliable
- Both a & b
- None
of these
-
- IP
does not ensure movement of a packet to its destination and have no
knowledge of __________
- Port
numbers
- Connections
- Both a & b
- None
of these
-
- IP
packets ________ arrive in the order in which it is sent
- May
- May
not
- May or may not
- None
of these
-
- SMDS
stands for
- Switched
Multiple Data Services
- Switched Multimegabit Data Services
- Switched
Multiple Double Services
- Switched
Multiple Data Subscriber
- SMDS
is a packet switched, high speed, connectionless public data service that
extends
- Local
Area Network
- Metropolitan
Area Network
- Wide
Area Network
- All of these
- In
SMDS, the service follows
- IEEE 802.6 DQDB(Distributed Queue
Dual Bus)
- IEEE
802.5 DQDB(Distributed Queue Dual Bus)
- IEEE
802.4 DQDB(Distributed Queue Dual Bus)
- IEEE
803.6 DQDB(Distributed Queue Dual Bus)
- The
SMDS is defined for MAN under_______ standard
- IEEE
802.5
- IEEE
802.4
- IEEE 802.6
- IEEE
802.2
- SMDS
is capable of variety of technologies including
- DQDB(Distributed
Queue Dual Bus)
- Broadband
ISDN(B-ISDN)
- Both a & b
- None
of these
- North
American implementation uses DQDB with DS1 at a data rate of
- 1.5Mbit/s
- 45Mbits/s
- 1.6Mbit/s
- 46Mbit/s
-
- North
American implementation uses DQDB with DS3 at a data rate of
- 1.5Mbit/s
- 45Mbits/s
- 1.6Mbit/s
- 46Mbit/s
- SMDS
network also planned to link B-ISDN and SONET OC3 with a data rate of
- 1.5Mbit/s
- 45Mbits/s
- 155Mbit/s
- 1.9Mbit/s
- Data service
- Telephone
service
- Frame
service
- Video
service
- Technology
- Protocol
- Both
a & b
- None of these
-
- The
word CPE means
- Customer Premises Equipment
- Computer
Premises Equipment
- Customer
Packet Equipment
- Customer
Protocol Equipment
- The
SMDS is designed to handle
- Continuous
traffic
- Finite
traffic
- Bursty traffic
- All
of these
- The
telephone service is designed to handle
- Continuous traffic
- Finite
traffic
- Bursty
traffic
- All
of these
- In
SMDS , the telephone number consists of
- Country
code
- Area
code
- Subscriber
code
- All of these
- Only
area
- Only
nationally
- Internationally
- None
of these
-
- Address
of source and destination in SMDS both consists of 4 bit code followed by
a telephone no of max.
- 12
decimal digits
- 16
decimal digits
- 15 decimal digits
- 20
decimal digits
-
- The
SMDS is similar to which transfer
mode
- Synchronous
transfer mode
- Asynchronous transfer mode
- Both
a & b
- None
of these
- SMDS
make use of cell relay with _______ per cell
- 53 octets
- 56
octets
- 58
octets
- 55
octets
-
- The
data unit of SMDS can encapsulate frames of
- IEEE802.3
- IEEE802.5
- FDDI
- All of these
- Copper
- Fiber
media
- Both a & b
- None
of these
- In
SMDS, with a tick every 10msec user can send_________ on the average
- 100,000 bytes/sec
- 10,000
bytes/sec
- 100,0000
bytes/sec
- 100,000,00
bytes/sec
- Which
means the network can expand with minimal investment
- SNMP
- Scalability
- Screening
- Simple
-
- Which is a network protocol that is based
on UDP and is a component of the component of the Internet Protocol Suite,
defined by IETF(Internet Engineering Task Force)
- SNMP
- Scalability
- Screening
- Multicasting
-
- The
user can have access to high speed lines ______ connected to MAN
- 32Mbits/s
- 33Mbits/s
- 34Mbits/s
- 35Mbits/s
- The
user can having access capacity of ______ connected to MAN
- 151Mbits/s
- 152Mbits/s
- 154Mbits/s
- 155Mbits/s
- The
backbones of MAN has working data rate of ________
- 139Mbits/s
- 140Mbits/s
- 155Mbits/s
- 134Mbits/s
- User
is charged for maximum rate of __________ bandwidth
- 34Mbits/s
- 4Mbits/s
- 10Mbits/s
- 16Mbits/s
- 25Mbits/s
- Except (a) all are answers
- SMDS
was primarily used for connecting
- In
SMDS, MAN interconnect
- Ethernet
- Token
ring networks
- Both a & b
- None
of these
- SMDS
networks have many underlying devices for supporting high-speed service
are
- Subscriber
network interface(SNI)
- Carrier
equipment
- Customer
Premises Equipment (CPE)
- All of these
- CPE
may be devices such as
- PCs(Personal
computers)
- Intermediate
nodes
- Terminals
- All of these
-
- Which
are intermediate nodes provided by SMDS carrier
- Multiplexers
- Modems
- Routers
- All of these
- Source
address
- Destination
address
- Both a & b
- None
of these
- Addressing in SMDS has provision
for
- Group
addressing
- Security
features
- Both a & b
- None
of these
- In
SMDS, there are two useful security features, namely
- Source
address validation
- Address
screening
- Both a & b
- None
of these
- CCITT
stands for
- Consultative
Committee International for Telegraphy and Telephony
- International Consultative Committee
for Telegraphy and Telephony
- International
Consultative Committee for Telephony and Telegraphy
- Consultative
Committee International for Telephony and Telegraphy
- X.25,
it was developed for computer connections used for
- Timesharing
connection
- Terminal
connection
- Both a & b
- None
of these
- X.25
provides a virtual high-quality digital network at
- Low cost
- High
cost
- Medium
cost
- All
of these
- Which
is another useful characteristics of X.25
- Speed
- Matching
- Speed matching
- None
of these
- In
X.25 DTEs are not required to use the same line speed because of the
- Store
- Forward
nature of packet switching
- Excellent
flow control
- All of these
- In X.25, A host connected at 56kbps and
communicating with numerous remote sites can be linked with cheaper______
lines
- 18.2kbps
- 19.2kbps
- 20.2kbps
- 22.2kbps
- In
X.25 defines the protocols from
- Layer
2 to Layer 3
- Layer
1 to Layer 2
- Layer 1 to Layer 3
- Layer
3 to Layer 2
- Based
on X.25 rules, how many logical channel can be set on a single physical
line
-
- To
enable control of 4096 logical channels in X.25, there are ____ channel
groups
- Each
logical channel group is divided into ____ logical channels
- The
channel grouping in X.25 are known as
- Logical
channel group number(LCGN)
- Logical
channel number(LCN)
- Both a & b
- None
of these
- X.25
is a
- Protocol
- Data
service
- Telephone
service
- Technology
- X.25
protocol was recommended by CCITT in
- X.25 protocol
exchanged the data control information between
- A
node
- A
user device
- Both a & b
- None
of these
- The
user device and node are properly referred to as
- DTE
- DCE
- Both a & b
- None
of these
- A
terminal of 1.2kbit/s can communicate with host computer at _______
through the packet switched network
- 9600bits/s
- 8600bits/s
- 7600bits/s
- 6600bits/s
- The
transmission speed of sender should be ___________ as that of receiver in
the X.25
- Same
- Different
- Both
a & b
- None
of these
- X.25
make use of _______ service
- Connectionless
- Connection-oriented
- Both
a & b
- None
of these
- PAD
stands for
- Packet Assembly and Disassembly
- Procedure
Assembly and Disassembly
- Permanent
Assembly and Disassembly
- Package
Assembly and Disassembly
- X.25
supports two types of packet format named
- Control
packet
- Data
packet
- Both a & b
- None
of these
-
- A X.25
packet make up the ______ of an HDLC frame
- Frame
field
- Data
field
- Information
field
- Both b and c are same
- Maximum
packet sizes in X.25 vary from
- 64bytes
to 128bytes
- 64bytes to 4096 bytes
- 64bytes
to 256bytes
- 32bytes
to 64bytes
- A X.25
protocol use
- Store and forward method
- Stop
and wait method
- Store
and stop method
- None
of these
- The
advantage of X.25 are
- Was
developed to recover errors
- Packet
switching eases compatibility problems in communications between PCs
- Packet
switching cannot waste bandwidth
- All of these
- Frame
relay constitutes of the OSI _____ layer
- First
- Second
- Third
- Fourth
- Logical
channels are identified by a number referred by
- DLCI(Data Link Connection Identifier)
- VLCI(Very
Large Connection Identifier)
- HDLC(High
Level Data Link Control )
- QLLC
- DLCI
can have a value between
- 0
and 1025
- 0
and 125
- 0
and 256
- 0 and 1023
-
- The
device which splits data into frames as well as combines frames into data
is referred as
- FRAD(Frame relay and Disassembly)
- FDLC
- HDLC
- DLCI
- Frame
relay indicates network congestion using two flags namely ________ bits in
data frames
- Forward
Explicit Congestion Notification(FECN)
- Backward
Explicit Congestion Notification(BECN)
- Both a & b
- None
of these
- Cell
relay is data transmission services that uses transmission technology
referred to as
- ATM(Asynchronous Transfer Mode)
- BTM
- STM
- DTM
- The
data transmission is a fixed length of data known as
- Cell
- Frame
- Relay
- Cell
relay
- Advantages
of cell relay are
- High-speed
transmission
- Multiplexing
transmission
- Both a & b
- None
of these
- Disadvantages
of cell relay are
- Cell
discarding occurs with congestion
- High
cost
- Both a & b
- None
of these
- The
cell relay protocol corresponds to first ____ layer of OSI
- The part
that corresponds to second layer, that is, data link layer is referred to
as
- DLC
layer
- ATM layer
- STM
layer
- Protocol
layer
- In
cell relay these logical channels are represented as
- Virtual
Channels(VCs)
- Virtual
Paths(VPs)
- Both a & b
- None
of these
- A VC is
a virtual channel composed of
- Frames
- Cells
- Relay
- Protocol
- Identifiers
are called ___________________ are used to identify VPS and VCs
- VCIs
- VIPs
- Both a & b
- None
of these
- In
cell relay communication performed between
- Two
VP
- Two VC
- VP
and VC
- VP
and VCI
- ATM is
an
- International
Telecommunication
- International
Telecommunication-Union
- International Telecommunication
Union-Telecommunication Standardization Sector(ITU-T)
- International
Telecommunication Union-Telecommunication
- ATM
networks are
- Connectionless
- Interconnected
- Connection oriented
- None
of these
- In
today ATM, separate networks are used to carry _________ information
mostly
- Voice
- Video
- Data
- All of these
- Data
traffic in ATM tend to be
- Continuous
- Bursty
- Discontinuous
- None
of these
- ATM
cell has a fixed length of __________
- 52bytes
- 53bytes
- 54bytes
- 55bytes
- Which
is a portion carries the actual information
- Payload(48bytes)
- Payment
- Payroll
- None
of these
- The
purpose of ATM is to provide
- High
speed
- Low-delay
multiplexing
- Switching
networks
- All of these
- ATM is
specifically designed as ________ technology for voice, video, and data
- Single
- Double
- Multiple
- None
of these
- ATM
can support
- Different
speeds
- Traffic
types
- Quality
of service attached to applications
- All of these
- ATM
cells coming from a user are guaranteed delivery at the other end with a
- High
probability
- Low
delay
- Both a & b
- None
of these
- The
characteristics of ATM are as follows
- The
transport speeds of most ATM applications are most often 155Mbps and
622Mbps
- ATM
is a flexible service made possible by the size of the packets (cells).
- The
small cell size allows a variety of applications to run on ATM networks
including voice, video and data
- All of these
- Narrow
band ISDN provides for the following services
- Circuit-switched
voice
- Circuit-switched
data
- Low-speed
packet
- High-speed
packet
- All of these
- The
cell relay is considered to be the __________ of the future
- Transmission
service
- Transport service
- Transfer
service
- None
of these
- ISDN
is a group of __________ standards relating to digital transmission across
conventional copper wire telephone lines, as also other media
- CCITT
- ITU
- Both a & b
- None
of these
- Narrow
band ISDN is a digital service where the transport speeds are ______ (T1)
or less
- 1.533Mbps
- 1.544Mbps
- 1.555Mbps
- 1.552Mbps
- The
range of speeds for the broadband ISDN services usually range from ______
to the Gigabit range
- Basic Rate Access
- Basic
Random Assembly
- Bit
Rate Assembly
- Bursty
Rate Assembly
-
- BRA
affords an ISDN user with simultaneous access to two _____ data channels
- 32kbps
- 64kbps
- 128kbps
- 256kbps
- The
ISDN Internetworking Equipment devices are
- Terminal
Adapters(TAs)
- ISDN
Bridges
- ISDN
Routers
- All of these
- Advantages
of ISDN internetworking are
- Quality
- Economy
- Availability
- All of these
-
- ISDN
connections mat be seen as very _______ digital conduits
- High
rate-of-error
- Low rate-of-error
- Both
a & b
- None
of these
-
- Each
channel in BRA is referred to as
- A-channel
- B-channel
- C-channel
- F-channel
- The
B-channel is capable of carrying both
- Voice
- Data
- Both a & b
- None
of these
- The
Another channel in BRA(Basic Rate Access) is referred as D-channel
Functions at
- 12Kbps
- 14Kbps
- 16Kbps
- 18Kbps
- The
D-channel in BRA is used for sending and receiving signal between
- User
devices
- ISDN
- Both a & b
- None
of these
- The
total transmission rate of BRA workout to a combined total of
- 144kbit/s
- 145kbit/s
- 146kbit/s
- 147kbit/s
- BRA is
also known as ____________, as per CCITT
- Which
service provide up to thirty independent 64kbps B channels and a separate
64kbps D channel to carried the signaling
- Basic
rate access
- Primary rate access
- Both a & b
- None
of these
- Primary
rate access is also known as __________, as per CCITT
- The
CCITT eventually was reformed in to the group which is now called the
________
- The
two standards ISDN connectors are
- RJ-45
type plug and socket uses unshielded twisted pair cable
- One
for accessing primary rate ISDN through a coaxial cable
- Both a & b
- None
of these
- ISDN
can be accessed as per CCITT by using two service called
- BRI(Basic
Rate Interface)
- PRI(Primary
Rate Interface)
- Both a & b
- None
of these
-
- BRI
includes ______ B channels and ________ D channel
- One
, two
- Two,
three
- Two, one(may be written as 2B+D)
- Three,
two
- BRI
providing data transmission speed of
- 62kbps
- 63kbps
- 64kbps
- 65kbps
- PRI is
popularly referred to as ____________ due to the number of channels as per
CCITT
- PRI
can carry up to 30 independent, ________ lines of data or voice channels
- 62kbps
- 63kbps
- 64kbps
- 65kbps
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ReplyDeletesee in questions very carefully.... answer is in bold letters.
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see in questions very carefully.... answer is in bold letters.
Deletein 4 options you will see one option is with dark black color. that Bold option is the answer of the question.
बहुत सावधानी से प्रश्नों में देखें .... उत्तर बोल्ड अक्षरों में है I
4 विकल्पों में आप देखेंगे कि एक विकल्प काले रंग का काला है। बोल्ड विकल्प प्रश्न का उत्तर है।
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see in questions very carefully.... answer is in bold letters.
Deletein 4 options you will see one option is with dark black color. that Bold option is the answer of the question.
बहुत सावधानी से प्रश्नों में देखें .... उत्तर बोल्ड अक्षरों में है I
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