Time: 60 min
Marks: 42
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| Q No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Total |
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| Q No. | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |
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| Q No. | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | |
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| Q No. | 25 | 26 | 27 | | | | | | |
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Question No: 1 ( Marks: 1 ) - Please choose one
Effective network mean that the network has fast delivery, timeliness and
► high bandwidth
► duplex transmission
► accurate transmission
► low bandwidth
Question No: 2 ( Marks: 1 ) - Please choose one
Which one best describes the given statement:
"To allow multiple users to share total capacity of a transmission medium"
► congestion control
► exchange management
► multiplexing
Question No: 3 ( Marks: 1 ) - Please choose one
A_________ provides a model for development that makes it possible for a product to work regardless of the individual manufacturer.
► protocol
► standard
► topology
► system
Question No: 4 ( Marks: 1 ) - Please choose one
_______ is a multipoint topology.
► Ring
► Mesh
► Tree
► Bus
Question No: 5 ( Marks: 1 ) - Please choose one
_________requires the maximum number of I/O ports.
► Bus
► Star
► Mesh
► Ring
Question No: 6 ( Marks: 1 ) - Please choose one
________ topology tells us how networks communicate with one another and how data is transferred.
► logical
► physical
► logical and physical
Question No: 7 ( Marks: 1 ) - Please choose one
Which topology requires a multipoint connection?
► Mesh
► Star
► Bus
► Ring
Question No: 8 ( Marks: 1 ) - Please choose one
Headers are added at layers 1 and 7 of OSI model.
► True
► False
Question No: 9 ( Marks: 1 ) - Please choose one
Internet with small “i” specifies the world wide Network the actual internet.
► True
► False
Question No: 10 ( Marks: 1 ) - Please choose one
The internet model consists of _________ layers.
► three
► two
► five
► seven
Question No: 11 ( Marks: 1 ) - Please choose one
As the data packet moves from the lower to the upper layers, headers are __________.
► added
► subtracted
► rearranged
► modified
Question No: 12 ( Marks: 1 ) - Please choose one
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
► True
► False
Question No: 13 ( Marks: 1 ) - Please choose one
Which layer is responsible for source to destination delivery of entire message?
► transport layer
► network layer
► session layer
► application layer
Question No: 14 ( Marks: 1 ) - Please choose one
The inversion of the level at 1 bit is called as __________
► NRZ-L
► NRZ-I
► RZ
Question No: 15 ( Marks: 1 ) - Please choose one
Which of the encoding schemes have bandwidth problems?
► Differential
► AMI
► RZ
Question No: 16 ( Marks: 1 ) - Please choose one
Bi phase encoding is a type of bipolar encoding in which we use two voltage levels.
► True
► False
Question No: 17 ( Marks: 1 ) - Please choose one
ASK require a minimum bandwidth equal to its baud rate.
► True
► False
Question No: 18 ( Marks: 1 ) - Please choose one
A 56k modem can download at a rate of __________ Kbps and upload at a rate of __________ Kbps.
► 33.6: 33.6
► 33.6: 56.6
► 56.6: 33.6
► 56.6: 56.6
Question No: 19 ( Marks: 1 ) - Please choose one
In ____________ transmission the timing of the signal is unimportant.
► Asynchronous
► Synchronous
► Polar
► Bi-polar
Question No: 20 ( Marks: 1 ) - Please choose one
There are _________________ basic functional units involved in the communication of data.
► 3
► 1
► 2
► 4
Question No: 21 ( Marks: 1 ) - Please choose one
At the ______________layer, a DCE takes data generated by a DTE.
► physical
► transport
► data link
► application
Question No: 22 ( Marks: 1 ) - Please choose one
The last modified version of EIA-232 standard is ______________
► EIA-232 D
► EIA-232 A
► EIA-232 B
► EIA-232 C
Question No: 23 ( Marks: 1 ) - Please choose one
Traditional telephony lines carry frequencies btw 300 Hz and 3300 Hz giving them a bandwidth of 3000 Hz.
► 3100
► 3000
► 3200
► 3300
Question No: 24 ( Marks: 1 ) - Please choose one
We need ____________ to decompose a composite signal into its components.
► fourier transform
► nyquist theorem
►
Question No: 25 ( Marks: 3 )
At which layer synchronization of Bits occur and how?
Question No: 26 ( Marks: 5 )
What is meant by Zero Frequency and Infinite Frequency?
Question No: 27 ( Marks: 10 )
Describe functions of each layer of OSI Model briefly?
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