CS601 Midterm paper
Solved by:Ayesha Waheed
Question No: 1( 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 Lecture # 03
______
Question No: 2( Marks: 1 )- Please choose one
Transmitting passwords is the responsibility of
► communication service module
► network access module
► file transfer application Lecture # 03
______
Question No: 3( Marks: 1 )- Please choose one
Line configuration refers to the way two or more devices attach to a______.
► Link Lecture # 04
► Circuit
► Route
► Node
______
Question No: 4( Marks: 1 )- Please choose one
Secondary hub in a tree must be a passive hub.
► True Lecture # 05
► False
______
Question No: 5( Marks: 1 )- Please choose one
In mesh topology, if there are five nodes then there will be______links.
►5
► 10 Lecture # 05
► 15
► 20
______
Question No: 6( Marks: 1 )- Please choose one
Line configuration is the function of______layer
► data link
► network
► physical Lecture # 04
► transport
______
Question No: 7( Marks: 1 )- Please choose one
Data link layer deals with mechanical and electrical specifications of transmission
medium and interface
► True
► False Lecture # 08
______
Question No: 8( Marks: 1 )- Please choose one
Session layer is responsible for segmentation and reassembly.
► True
► False Lecture #09
______
Question No: 9( Marks: 1 )- Please choose one
A signal that repeats a pattern over a regular interval of time is called______.
► periodic signal Lecture # 11
► analog signal
► composite signal
______
Question No: 10( Marks: 1 )- Please choose one
Signal can be controlled by three attributes: Amplitude, frequency and______.
► Phase Lecture # 12
► Time
► Wavelength
______
Question No: 11(Marks: 1)- Please choose one
Frequency band in which 99% of the total power resides is called______
► Power bandwidth Lecture #13
► Half power bandwidth
► 3dB bandwidth
► F.M.
______
Question No: 12( Marks: 1 )- Please choose one
The last process in PCM is______digital data into digital signal.
► encoding Lecture # 14
► decoding
► modulating
______
Question No: 13( Marks: 1 )- Please choose one
The powerful carrier signal is called as the______
► carrier frequency
► base signal Lecture # 17
► carrier frequency and base signal
► none of given
______
Question No: 14(Marks: 1)- Please choose one
Modulation of an analog signal can be accomplished through changing the
______of the carrier signal.
► Amplitude
► frequency
► phase
► All of the given
______
Question No: 15(Marks: 1)- Please choose one
In______transmission the timing of the signal is unimportant.
► Asynchronous
► Synchronous
► Polar
► Bi-polar
______
Question No: 16(Marks: 1)- Please choose one
In______transmission, bits are transmitted simultaneously, each
across its own wire.
► Asynchronous serial
► Synchronous serial
► Parallel
► Asynchronous & Synchronous serial
______
Question No: 17( Marks: 1 )- Please choose one
A______converts an analog signal into a digital signal.
► Demodulator
► Modulator
► Digital-to-analog converter
______
Question No: 18( Marks: 1 ) - Please choose one
The information to be communicated in a data communications system is the
► Medium
► Protocol
► Message
► Transmission
______
Question No: 19 ( Marks: 1 ) - Please choose one
Which is not an element of protocol
► semantics
► timing
► communication service module
______
Question No: 20( Marks: 1 ) - Please choose one
Line configuration refers to the way two or more devices attach to a ______.
► Link
► Circuit
► Route
► Node
______
Question No: 21( Marks: 1 ) - Please choose one
______requires the maximum number of I/O ports.
► Bus
► Star
► Mesh
► Ring
______
Question No: 22( Marks: 1 ) - Please choose one
Layers 5, 6 and 7 also called as network support layers.
► True
► False
______
Question No: 24( Marks: 1 ) - Please choose one
Data link layer deals with mechanical and electrical specifications of transmission medium and interface
► True
► False
______
Question No: 25( Marks: 1 ) - Please choose one
Data synchronization is a function related with ______
► session layer
► presentation layer
► transport
______
Question No: 26( Marks: 1 ) - Please choose one
OSI model was developed prior to TCP/IP model.
►True
► False
______
Question No: 27( Marks: 1 ) - Please choose one
Fourier transform tells us that any digital signal can be decomposed into infinite number of periodic signals
► True
False
______
Question No: 28( Marks: 1 ) - Please choose one
A signal that repeats a pattern over a regular interval of time is called______.
► periodic signal
► analog signal
► composite signal
______
Question No: 30( Marks: 1 ) - Please choose one
Frequency band in which 99% of the total power resides is called______
► power bandwidth Lecture #13
► half power bandwidth
► 3dB bandwidth
► F.M.
______
Question No: 31( Marks: 1 ) - Please choose one
In differential Manchester we require two transition or signal changes to represent binary_____
► zero
► one
► both zero and one
______
Question No: 32( Marks: 1 ) - Please choose one
In Alternate mark inversion the term mark comes from______
► telegraphy
► telephony
► digital telephony