1. Which
protocol was based on the specification called the Ethernet
a. IEEE
802.3
b. CSMA/CD
c. Both a & b
d. None
of these
2. MAC(Medium
Access Control)sub layer is between the
a. Physical
layer
b. Data
Link layer
c. Both a & b
d. None
of these
3. Depending
on the transmission media used, the Ethernet can be classified into following
categories are
a. Thick
Ethernet or 10base5
b. Cheaper
Net or Thin Net(10base2)
c. Star
LAN(10baseT)
d. Optical
Fibre CSMA/CD LAN (10baseF)
e. All of these
4. The
characteristics of the Thick Ethernet cable are
a. Provides
connectivity to max of 1024 stations
b. Cable
supports a max distance of 500meters
c. Max
distance covered by a network using Thick Ethernet is 2.5Km
d. Max
no of stations supported by the Ethernet is 1024
e. All of these
5. A
10 Mbps cable is like a
a. Blue
hose
b. Yellow hose
c. Black
hose
d. None
of these
6. All
stations in a Thick Ethernet is connected to a
a. Twisted
pair cable
b. Coaxial cable
c. CSMA/CD
d. Transceiver
7. A group of stations connected to a cable forms
a
a. Repeater
b. Transceiver
c. Segments
d. Groups
8. Which
device is used to link two network segments, which are separated by a long
distance
a. Repeater
b. Transceiver
c. Segments
d. Groups
9. Each
cable is connected to a Ethernet cable through a
a. Repeater
b. Transceiver
c. Segments
d. Groups
10. A repeater
consists of _______ transceiver
a. 1
b. 2
c. 3
d. 4
e.
11. The
functions performed by physical layer are
a. Encoding
the data
b. Medium
access
c. Data
encapsulation
d. Both a & b
12. The functions performed by logical layer are
a. Data
encapsulation
b. Link
management
c. Medium
access
d. Both a & b
e.
13. The computer or station is connected to a
Ethernet card, Ethernet card consists of
a. Station
interface
b. Data
packet generator
c. A
link management unit
d. All of these
14. The output
of a Ethernet card is connected to the data encoder/decoder, which in turn is
connected to the transmission cable through a
a. Repeater
b. Transceiver
c. Segments
d. Groups
15. The
IEEE802.3 Ethernet frame format are
a. Preamble-7byte
b. Start
of frame-1byte
c. Destination
address-6byte
d. Source
address-6byte
e. Length-2byte
f.
Information field-46to 1500bytes
g. Frame
check sequencer-4byte
h. All of these
16. The local
area networks that do not require the capabilities of complete Ethernet system,
the IEEE802.3 standard committee has created a new standard called
a. Thin net
b. Star
LAN
c. Optical
fibre CSMA/CD
d. None
of these
17. The characteristics of thin net or cheaper
net is
a. Max
distance is up to 200meters
b. Max
no of nodes is 30
c. Max
stations per network is 1024
d. Node
spacing is 0.5meters
e. Cable
diameter is 0.25inches
f.
BNC-T-connector is used to connect cables and N-series
connector
g. All of these
18. The third
variation of IEEE802.3 standard was a
a. Thin
net
b. Star LAN
c. Optical
fibre CSMA/CD
d. None
of these
19. The
characteristics of Star LAN are
a. It
operates data rate up to 1Mbps
b. The
configuration contains up to 5 upward levels of hubs
c. Twisted
pair cable already used in telephone lines for transmission media
d. Each
group of stations is connected to a local hub
e. The
hubs are connected in the form of tree
f.
All of these
20. The characteristics of optical fibre CSMA/CD
LAN are
a. Good
immunity to the electromagnetic interference
b. Low
loss of power
c. High
bandwidth
d. Less
weight
e. High
transmission security
f.
All of these
21. The optical fibre version of CSMA/CD LAN has a
no of advantage than the
a. Coaxial cable version of Ethernet
b. Twisted
cable version of Ethernet
c. Both
a & b
d. None
of these
22. A token
ring is a ring topology created by IBM in
a. 1960
b. 1990
c. 1970
d. 1980
e.
23. A stream of
data is called a
a. Token
b. Frame
c. Token
Ring
d. None
of these
24. A central hub called _______ is used to
connect each station in a star type of topology
a. MSAU(Multi Station Access Unit )
b. CSAU
c. SSAU
d. None
of these
25. The
advantage of Token ring mechanism is
a. It
prevents collision by ensuring that only one station at a time is transmitting
b. Ensures
delivery of frame
c. Both a & b
d. None
of these
26. Which uses
electromechanical relays to make the physical star into a logical ring
a.
b. MSAU(Multi Station Access Unit )
c. CSAU
d. SSAU
e. None
of these
27. NAUN stands
for
a. Nearest Active Upstream Neighbour
b. Network
Active Upstream Neighbour
c. Network
administrator Upstream Neighbour
d. None
of these
28. IBM token
ring products were available with speeds of
a. 4Mbps
b. 16Mbps
c. Both a & b
d. None
of these
e.
29. High-Speed
Token Ring(HSTR) technology is also available with speed of
a. 100Mbps
b. 1Gbps
c. Both a & b
d. None
of these
30. The frame
format of a token ring in a ring topology is
a.
b. Preamble
c. Start
Delimiter
d. Frame
Control
e. Destination
Address
f.
Source Address
g. Date
h. FCS
i.
End Delimiter
j.
Frame status
k. All of these
31. In a token
ring , stations are connected to a
a. Physical
ring
b. Logical ring
c. Both
a & b
d. None
of these
32. How many
modes a ring interface can operate
a. 1
b. 2
c. 3
d. 4
33. A ring
interface can operate different modes
a. Listen
mode
b. Talk
mode
c. Both a & b
d. None
of these
34. In physical
layer of token ring , signal speed of this media is
a. 1Mbps
b. 4Mbps
c. Both a & b
d. None
of these
35. IBM released a token ring version that can operate
at a speed of ______
a. 4Mbps
b. 6Mbps
c. 8Mbps
d. 16Mbps
36. Differential_______
encoding schema is used for encoding the digital data
a. Manchester
b. Multi
programming
c. Multi
processor
d. None
of these
37. The MAC sub
layer is on the____ of the physical layer
a. Bottom
b. Mid
c. Top
d. None
of these
38. When there
is no traffic on the ring______ token circulates continuously until some
station grabs it
a. 3-byte
b. 5-byte
c. 7-byte
d. 9-byte
39. The length
of the frame_________________
a. Short
b. Long
c. May be long or short
d. None
of these
40. The maximum
time a station is permitted to hold the token is known as________
a. Token
time
b. Token
holding time
c. Token
ring
d. None
of these
41. The
IEEE802.5 token frame format are
a. Start
of frame and end of frame
b. Access
control
c. Frame
control
d. Source
address and destination address
e. Checksum
f.
All of these
42. The token
ring management activities are
a. Monitor
stations
b. Ring
initialization
c. Lost
tokens
d. Orphan
frames
e. All of these
43. The
stations crashed after transmitting a short frame form
a.
b. Monitor
stations
c. Ring
initialization
d. Lost
tokens
e. Orphan frames
f.
All of these
44. The FDDI
network stands for
a. Fibre
Distributed Data Incorporation
b. Fibre
Distributed Data Institute
c. Fibre Distributed Data Interface
d. Fibre
Distributed Dual Incorporation
45. The FDDI
network is a
a. High-speed
b. High-bandwidth
c. Both a & b
d. None
of these
46. The FDDI
network is based on the
a. Physical
transmission
b. Optical transmission
c. Logical
transmission
d. None
of these
e.
47. The
characteristics of FDDI network are
a. It
transport data at a rate of 100Mbps
b. It
can support up to 500stations on a single network
c. This
network is used for connecting high-end computers
d. Rapid
transfer of large amount of data
e. FDDI
network consists of two counter-rotating rings
f.
It was designed to run through fibre cables or copper
media
g. It
was based on ring topology with token passing
h. It
helps and support extend the capabilities of older LANs , such as Ethernet and
token ring
i.
It provides a reliable infrastructure for businesses
,moving even mission-critical applications to networks
j.
Easier to maintain
k. Compatible
to standard-based components and various operating systems
l.
All of these
48. The ANSI began working on the FDDI-standard
in
a. 1980
b. 1981
c. 1982
d. 1983
49. The FDDI
specification was released in
a. 1982
b. 1983
c. 1984
d. 1986
50. The most
key elements of FDDI was defined in
a. 1986
b. 1982
c. 1985
d. 1989
51. The FDDI considered
as a _______ of IEEE802.5standard
a. Predecessor
b. Successor
c. Tool
d. None
of these
e.
52. FDDI network comprises 2 bottom layer in ISOs
OSI model namely
a. Physical
layer
b. Data
link layer
c. Both a & b
d. None
of these
e.
53. The physical layers are
a. PMD
b. PHY
c. Both a & b
d. None
of these
e.
54. The ANTC
stands for
a. Advanced Network Test Center
b. American
National Test Center
c. American
National Token Center
d. None
of these
55. The word
EANTC stands for
a. European ANTC
b. Easily
ANTC
c. Efficient
ANTC
d. None
of these
56. The FDDI is
a. More
than LAN
b. Less
than WAN
c. Less
than LAN
d. Both a & b
57. The FDDI
network can easily be added to network topologies such as
a. Ethernet
b. Token
ring
c. Both a & b
d. None
of these
58. The FDDI
supports four different types of cables as
a. Multimode
fibre optic cable
b. Single
mode fibre optic cable
c. Unshielded
twisted-pair copper wiring
d. Shielded
twisted-pair copper wiring
e. All of these
59. The PMD
stands for
a. Physical Medium Dependent
b. Physical
Medium Distance
c. Physical
Media Dependent
d. Permitting
Medium Dependent
60. For optical
fibre media , which PMD is used
a. TP-PMD
b. Fibre PMD
c. Both
a & b
d. None
of these
e.
61. For copper
media , which PMD is used
a. TP-PMD
b. Fibre
PMD
c. Both
a & b
d. None
of these
e.
62. Other two
significant PMD are
a. SMF-PMD(Single
Mode Fibre-PMD)
b. LCF-PMD(Low
Cost Fibre-PMD)
c. Both a & b
d. None
of these
63. The fibre
PMD-ANSI X3T9.5/48 describes the physical layer that uses
a. Fibre
components
b. Optical
components
c. Both a & b
d. None
of these
64. The
characteristics and parameters of the optical fibre cable allowed for FDDI are
a. Wavelength
of light(normal is 1300nm)
b. Attenuation
and bandwidth
c. Max
bit error rate
d. Dispersion
of optical media
e. Numerical
aperture(normal is 0.275)
f.
Intensity of light
g. Jitter
of pulse
h. Allowed
power between two stations
i.
All of these
65. The PHY are
a. Data
link layer protocol
b. Physical layer protocol
c. Network
protocol
d. None
of these
66. The
micrometer graded index fibre are
a. 62.5/125
b. 85/125
c. 50/125
d. 100/140
e. All of these
67. The max
number of PHYs pre FDDI are
a. 200
b. 500
c. 1000
d. 1800
e.
68. The DAS
stands for
a. Dual
Access Station
b. Dual Attachment Station
c. Data
Access Station
d. Data
Attachment Station
69. SAS stands
for
a. Single
Access Station
b. Single
Attachment Station
c. Single Attached Station
d. None
of these
70. Which
standard is applied in the LLC(Logical Link Control) layer
a. IEEE802.5
b. IEEE802.2
c. IEEE802.6
d. IEEE802.4
71. The MAC
layer specifies how to handle
a. Synchronous
data traffic
b. Asynchronous
Data traffic
c. Both a & b
d. None
of these
72. IEEE802.2
standard works on ______________ modes
a. Connectionless
b. Connection-oriented
c. Both a & b
d. None
of these
73. If the
received data is damaged or lost, the destination machine to retransmit the
data known as _____________
a. SNAP
b. ARQ
c. LLC
d. MAC
74. ARQ stands
for
a. Array
Repeat Request
b. Automatic Repeat Request
c. Automatic
Request Repeat
d. Acknowledgement
Repeat Request
75. SNAP stands
for
a. Subnetwork
Access Package
b. Subnetwork
Access Packet
c. Structured
Access Protocol
d. Subnetwork Access Protocol
76. LLC header
contains _______ additional eight-bit address fields known as service access
points or SAPs to request SNAP service
a. 1
b. 2
c. 3
d. 4
77. PDU stands
for
a. Packet
Device Unit
b. Protocol
Device Unit
c. Protocol Data Unit
d. Protocol
Data Universal
78. IEEE802.3
Ethernet has become one of the most used ________
a. WAN
media
b. LAN media
c. MAN
media
d. None
of these
79. Around
1984, DIX(a consortium of Digital, Intel and Xerox) and IEEE created standards
for Ethernet, which are popularly known as the ________
a. IEEE802.3
b. IEEE802.1
c. IEEE802.2
d. IEEE802.3
80. Which
another group took the responsibility for developing medium access protocols
a. DLMAC
b. ARQ
c. LAN
d. SNAP
81. Ethernet is
the ______ expensive high-speed LAN alternative
a. More
b. Least
c. None
of these
82. Ethernet
transmits and receives data at a speed of ___________
a. 5
million bits per second
b. 10 million bits per second
c. 15
million bits per second
d. 20
million bits per second
83. In
Ethernet, Data is transferred between wiring closets using either a __________
a. Heavy
coaxial cable
b. Thick
net
c. Fibre
optic cable
d. All of these
e.
84. Ethernet
was first designed and installed by Xerox Corporation at its Palo Alto Research
Center(PARC) in the mid _________________
a. 1960s
b. 1970s
c. 1980s
d. 1965s
85. In 1980,
____________ came out with a joint specification which has become the de facto
standard
a. DEC
b. Intel
c. Xerox
d. All of these
86. Ethernet
frames travel at the data link layer of the OSI model and must be a minimum of
________
a. 32bytes
b. 64bytes
c. 128bytes
d. 256bytes
87. Ethernet
frames travel at the data link layer of the OSI model and must be a maximum of
________
a. 1515bytes
b. 1516bytes
c. 1517bytes
d. 1518bytes
88. FCS stands
for
a. Frame
Check System
b. Frame Check Sequence
c. Frame
Cyclic Sequence
d. Frame
Checksum Sequence
89. Ethernet
IEEE802.3 frame description of each field in ___________________
a. Preamble
(P)
b. Start
Frame Delimiter (SFD)
c. Destination
Address
d. All of these
90. The need
for devising a mechanism to avoid such deadlocks, some of the important methods
are listed below:
a. CSMA/CD
b. CSMA/CA
c. Token
passing
d. Polling
e. All of these
91. _________
cable is used widely as a backbone technology
a. TV
b. Fibre
c. Fibre optic cable
d. None
of these
e.
92. Which are
used to connect LANs and LAN segments in a campus environment
a. Microwave
b. Infrared
systems
c. Both a & b
d. None
of these
93. The
advantages of coaxial cable include high bandwidth in the range of ________ and
more, better error performance and lack of severe distance limitation
a. 200MHz
b. 300MHz
c. 400MHz
d. 500MHz
94. The
disadvantage of coaxial cable have been mitigated to a _______ through the
development of new coaxial designs
a. Small
extent
b. Large extent
c. Either
large or small
d. None
of these
e.
95. Which uses
traditional thick baseband coaxial cable in a bus topology to connect multiple
computers, this single line transmission is called a Segment
a. 10Base2(Thick
Net/Yellow Ethernet)
b. 10Base5(Thick Net/Yellow Ethernet)
c. 10Base2(Thin
Net/Black Ethernet)
d. 10Base5(Thin
Net/Black Ethernet)
96. A coaxial
cable _______ in diameter known as thick coaxial cable is used as a
transmission line
a. 5mm
b. 10mm
c. 15mm
d. 20mm
97. A
transceiver is used to connect a ____________________
a. Coaxial
cable
b. Terminals
c. Transmitter
d. Both a & b
98. A
transceiver cable also referred to as an __________ cable and is used to
connect a transceiver and the NIC
a. ALU
b. AUI(Attachment Unit Interface)
c. LAN
d. MAN
99. In
10Base5(Thick Net/ Yellow Ethernet) the maximum length of this cable is ______,
up to 100 transceivers can be connected to each segment
a. 40
metres
b. 45 metres
c. 50 metres
d. 55 metres
100.
In 10Base5(Thick Net/ Yellow Ethernet) the minimum
allowable distance between transceivers is _______
a. 1.5
metres
b. 2.5 metres
c. 3.5 metres
d. 4.5
metres
e.
101.
10Base stands for ___________
a. 10Mbps
b. Baseband
transmission system
c. Both a & b
d. None
of these
102.
The 5 of 10Base5 signify a maximum of _________ segment
length
a. 50-
metre
b. 500- metre
c. 5000-
metre
d. 550-
metre
103.
The 5 of 10Base5 segment may be extended up to ______
by using repeaters
a. 500
metres
b. 1000 metres
c. 1500 metres
d. 2000 metres
104.
Which uses thinner baseband coaxial cable in a bus
topology so that multiple computers can be connected to a single transmission
line
a. 10Base2(Thick
Net/Yellow Ethernet)
b. 10Base5(Thick
Net/Yellow Ethernet)
c. 10Base2(Thin Net/Black Ethernet)
d. 10Base5(Thin
Net/Black Ethernet)
105.
In 10Base2(Thin Net/Black Ethernet) a coaxial cable of
thinner gauge of _______ in diameter
a. 5mm
b. 10mm
c. 15mm
d. 20mm
106.
The thinner cable is less costly to acquire and deploy,
although its performance is less in terms of transmission distance because of
its cost it is sometimes called ___________
a. Chaplet
b. Cheapnet
c. None
of these
107.
10Base2 signifies in the same manner as 10Base5 except
2 is signified here as _______ maximum segment length(actually 185 metres)
a. 100
metres
b. 200 metres
c. 250 metres
d. 300 metres
108.
BNC stands for
a. Bayonet
Neil Connection
b. Bayonet Neil Connector
c. Bayonet
Neil Connectionless
d. Bayonet
Network Connection
109.
Which is used to connect a cable and terminals or
terminators
a. BNC
b. T-connector
c. Both a & b
d. None
of these
110.
Only up to ______ per segment can be connected to a
T-connector
a. 10
nodes
b. 20
nodes
c. 30 nodes
d. 40
nodes
111.
The minimum allowable distance is ____ between
consecutive connections
a. 0.2
metres
b. 0.5 metres
c. 1.5 metres
d. 2.5 metres
112.
UTP stands for
a. Universal
Twisted Pair
b. Unshielded Twisted Pair
c. Universal
Transmission Pair
d. Unique
Twisted Pair
113.
STP stands for
a. System
Twisted Pair
b. Shielded Twisted Pair
c. System
Twisted Panel
d. Subscriber
Twisted Protocol
114.
UTP has been proved to perform at very high data rates
_____ over short distances
a. 50Mbps
b. 100Mbps
c. 150Mbps
d. 200Mbps
115.
10BASET(twisted pair Ethernet) uses _______________
a. Cat
3
b. Cat
4
c. 5
UTP
d. All of these
116.
Ethernet Specifications
|
|
10Base5
|
10Base2
|
10BaseT
|
|
Transmission speed
|
10Mbps
|
10Mbps
|
10Mbps
|
|
Transmission medium
|
Coaxial cable
|
Coaxial cable
|
UTP Cat 3,4,5
|
|
Maximum segment length
|
500 metre
|
185 metre
|
100 metre
|
|
Maximum node/segment
|
100
|
30
|
-
|
|
Minimum length between node
|
2.5 metre
|
2.5 metre
|
-
|
|
Repeaters/Series
|
4
|
4
|
4
|
|
Maximum network length
|
2500 metre
|
925 metre
|
500 metre
|
117.
The two general types of token passing schemes are
a. Token
ring
b. Token
bus
c. Both a & b
d. None
of these
118.
A
DQDB(Distributed Queue Dual Bus) provides service over cable interface for
a. LAN
b. MAN
c. WAN
d. All
of these
e.
119.
The DQDB supports _______ based on cell switching
technology similar to Asynchronous Transfer Mode(ATM)
a. Data
b. Voice
c. Video
transmission
d. All of these
120.
The Asynchronous Transfer Mode(ATM) is an _________ for
cell relay
a. ITU-TSS(International Telecommunication Union-Telecommunication
Standardization Sector)
b. TIU-ESS
c. PTU-DSS
d. None
of these
121.
The ATM networks are
a. Connection-less
service
b. Connection oriented service
c. Both
a & b
d. None
of these
122.
The ATM cell has a fixed length of
a. 51bytes
b. 62bytes
c. 53bytes
d. 63bytes
123.
The cell is broken into the two main sections called
a. Header
b. Payload
c. Both a & b
d. None
of these
124.
Which sections of cell carries the actual
information(voice, data or video)
a. Header
b. Payload(48bytes)
c. Both
a & b
d. None
of these
125.
Which sections of cell is the addressing mechanism
a. Header(5bytes)
b. Payload(48bytes)
c. Both
a & b
d. None
of these
e.
126.
The disadvantage of DQDB is to have
a. Fluctuating data rate
b. High
bandwidth
c. High
susceptibility to error
d. Fixed
bandwidth distribution
127.
The frame format of DQDB are
a. Header
b. ST(Segment
Type)
c. MID(Message
Identifier)
d. Information
e. LEN(Data
Length)
f.
CRC(Cyclic Redundancy Check)
g. All of these
128.
GPS stands for
a. Global
Partition System
b. General
Partition System
c. Global Positioning System
d. General
Positioning System
129.
Which satellite communication involve a satellite relay
station that is launched into a geostationary, geosynchronous, or geostatic
orbit
a. Temporary
b. Contemporary
c. Permanent
d. None
of these
e.
130.
The contemporary satellite communication launched into
a
a. Geostationary
orbit
b. Geosynchronous
orbit
c. Geostatic
orbit
d. All of these
131.
The contemporary satellite communication are called
a. Geostationary satellite
b. Geostatic
satellite
c. Geosynchronous
satellite
d. All
of these
132.
In case of satellite communication two different
frequencies are used as carrier frequency to avoid interference b/w incoming
and outgoing signals are
a. Uplink
frequency
b. Downlink
frequency
c. Both a & b
d. None
of these
133.
Which frequency is used to transmit signal from the
earth station to satellite
a. Uplink frequency
b. Downlink
frequency
c. Broadcast
d. None
of these
e.
134.
Which frequency is used to transmit signal from the
satellite to earth station
a. Uplink
frequency
b. Downlink frequency
c. Broadcast
d. None
of these
e.
135.
In which manner, satellite can serve a
point-to-multipoint network requirement through a single uplink station and
multiple downlink stations
a. Uplink
frequency
b. Downlink
frequency
c. Broadcast
d. None
of these
136.
The general properties of satellite
communication______________
a. Each
signal travel 36,000 km
in each direction
b. The
cost of satellite communication is quite high
c. Security
must be imposed through encryption
d. Satellite
provides increment in bandwidth
e. Satellite
provides extensive error detection and correction capabilities
f.
All of these
137.
TDMA stands for
a. Time
Division Multiplexing Access
b. Time
Dynamically Multiple Access
c. Time Division Multiple Access
d. Time
Division Multiple Assigning
138.
The most commonly used satellite access schemes are
a. TDM/TDMA
b. Fixed
assigned TDMA
c. Slotted
ALOHA
d. Dynamic
reservation
e. All of these
139.
The VSAT stands for
a. Very
Small Accessing Terminal
b. Very
Small Access Topology
c. Very Small Aperture Terminal
d. None
of these
140.
The VSAT technology is based on the
a. Wired
satellite technology
b. Wireless satellite technology
c. Both
a & b
d. None
of these
141.
The VSAT networks offer value added satellite based
services capable of supporting the
a. Internet
b. Data
c. Satellite
based video
d. Audio
LAN
e. Voice
or fax communication
f.
Provide powerful, dependable, private and public
network commn solutions
g. All of these
142.
The VSAT system operates in two different bands named
a. Ku-band
b. C-band
c. Both a & b
d. None
of these
e.
143.
The VSAT system operates under C-band frequency are
a. 5.925to
6.425 GHz
b. 3.700to
4.200GHz
c. Both a & b
d. None
of these
144.
The VSAT system operates under Ext-Cband frequency are
a. 6.725
to 7.025GHz
b. 4.500
to 4.800GHz
c. Both a & b
d. None
of these
e.
145.
The VSAT system operates under Ku-Band 1 frequency are
a. 4.000
to 14.500GHz
b. 10.950
to 11.700GHz
c. Both a & b
d. None
of these
146.
The Ku-band networks are commonly used in
a. Europe and North
America
b. Asia
and Africa
c. Latin
America
d. Both
a & b
147.
The C-band networks are commonly used in
a. Europe
and North America
b. Asia
and Africa
c. Latin
America
d. Both b & c
148.
Which band of frequencies require the large VSAT
antenna
a. Ku-band
b. C-band
c. Both
a & b
d. None
of these
149.
Which band of frequencies require the smaller VSAT
antenna
a. Ku-band
b. C-band
c. Both
a & b
d. None
of these
e.
150.
The components of VSAT network are
a. Master
earth station
b. Remote
earth station
c. Satellite
d. All of these
151.
The first component-master earth station is also known
as
a. Central hub station
b. Central
satellite
c. Backbone
d. All
of these
152.
The master earth station has a large _______ meter antenna
a. 3
b. 6
c. 5
d. 4
153.
The hub earth station consists of
a. Radio
frequency(RF)
b. Intermediate
frequency(IF)
c. Base-band
equipment
d. All of these
154.
The RF equipment consists of the following sub-systems
are
a. Antenna
b. Low
noise amplifier(LNA)
c. Down
converter, up converter
d. High-power
amplifier
e. All of these
155.
The IF and base-band equipment consists of
a. IF
combiner/divider
b. Modulator
and demodulator
c. Customer
equipment interface
d. Processing
equipments
e. All of these
156.
The customer equipment interface unit provides the
interface to the
a. Customer
host equipment
b. Protocol
emulation
c. Both a & b
d. None
of these
157.
The remote earth station of VSAT comprises of
a. Outdoor
unit(ODU)
b. Indoor
unit(IDU)
c. Inter-facility
link(IFL)
d. All of these
158.
The outdoor unit is generally installed in the
a. Ground
b. Indoor
unit
c. Both a & b
d. None
of these
159.
The VSAT outdoor unit consists of
a. Standard
1.8 meter
offset feed antenna
b. Solid-state
amplifier(SSPA)
c. Low
Noise Amplifier(LNA)
d. Feed
horn
e. All of these
160.
The indoor unit functions as a
a. Amplifier
b. Modem
c. PCs
d. None
of these
please send answer all of these question.
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