980+ Computer Networks Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Electrical Engineering , Bachelor of Science in Computer Science TY (BSc CS) , Bachelor of Science in Information Technology FY (BSc IT) , Bachelor of Science in Information Technology SY (BSc IT) .

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101.	HTTP client requests by establishing a __________ connection to a particular port on the server.
A.	user datagram protocol
B.	transmission control protocol
C.	broader gateway protocol
D.	none of the mentioned
Answer» B. transmission control protocol

102.	In HTTP pipelining
A.	multiple http requests are sent on a single tcp connection without waiting for the corresponding responses
B.	multiple http requests can not be sent on a single tcp connection
C.	multiple http requests are sent in a queue on a single tcp connection
D.	none of the mentioned
Answer» A. multiple http requests are sent on a single tcp connection without waiting for the corresponding responses

103.	FTP server listens for connection on port number
A.	20
B.	21
C.	22
D.	23
Answer» B. 21

104.	In FTP protocol, client contacts server using ____ as the transport protocol.
A.	transmission control protocol
B.	user datagram protocol
C.	datagram congestion control protocol
D.	stream control transmission protocol
Answer» A. transmission control protocol

105.	In which mode FTP, the client initiates both the control and data connections.
A.	active mode
B.	passive mode
C.	both (a) and (b)
D.	none of the mentioned
Answer» B. passive mode

106.	The file transfer protocol is built on
A.	data centric architecture
B.	service oriented architecture
C.	client server architecture
D.	none of the mentioned
Answer» C. client server architecture

107.	In file transfer protocol, data transfer can be done in
A.	stream mode
B.	block mode
C.	compressed mode
D.	all of the mentioned
Answer» D. all of the mentioned

108.	Ethernet frame consists of
A.	mac address
B.	ip address
C.	both (a) and (b)
D.	none of the mentioned
Answer» A. mac address

109.	What is stat frame delimeter (SFD) in ethernet frame?
A.	10101010
B.	10101011
C.	00000000
D.	11111111
Answer» B. 10101011

110.	What is autonegotiation?
A.	a procedure by which two connected devices choose common transmission parameters
B.	a security algorithm
C.	a routing algorithm
D.	none of the mentioned
Answer» A. a procedure by which two connected devices choose common transmission parameters

111.	Ethernet in metropolitan area network (MAN) can be used as
A.	pure ethernet
B.	ethernet over sdh
C.	ethernet over mpls
D.	all of the mentioned
Answer» D. all of the mentioned

112.	A point-to-point protocol over ethernet is a network protocol for
A.	encapsulating ppp frames inside ethernet frames
B.	encapsulating ehternet framse inside ppp frames
C.	for security of ethernet frames
D.	for security of ppp frames
Answer» A. encapsulating ppp frames inside ethernet frames

113.	High speed ethernet works on
A.	coaxial cable
B.	twisted pair cable
C.	optical fiber
D.	none of the mentioned
Answer» C. optical fiber

114.	The maximum size of payload field in ethernet frame is
A.	1000 bytes
B.	1200 bytes
C.	1300 bytes
D.	1500 bytes
Answer» D. 1500 bytes

115.	What is interframe gap?
A.	idle time between frames
B.	idle time between frame bits
C.	idle time between packets
D.	none of the mentioned
Answer» A. idle time between frames

116.	An ethernet frame that is less than the IEEE 802.3 minimum length of 64 octets is called
A.	short frame
B.	run frame
C.	mini frame
D.	man frame
Answer» B. run frame

117.	Which of this is not a constituent of residential telephone line?
A.	a high-speed downstream channel
B.	a medium-speed downstream channel
C.	a low-speed downstream channel
D.	none of the mentioned
Answer» C. a low-speed downstream channel

118.	In DSL telco provides these services
A.	wired phone access
B.	isp
C.	all of the mentioned
D.	none of the mentioned
Answer» C. all of the mentioned

119.	The function of DSLAM is
A.	convert analog signals into digital signals
B.	convert digital signals into analog signals
C.	amplify digital signals
D.	none of the mentioned
Answer» A. convert analog signals into digital signals

120.	The following term is not associted with DSL
A.	dslam
B.	co
C.	splitter
D.	cmts
Answer» D. cmts

121.	HFC contains
A.	fibre cable
B.	coaxial cable
C.	both of the mentioned
D.	none of the mentioned
Answer» C. both of the mentioned

122.	Choose the statement which is not applicable for cable internet access
A.	it is a shared broadcast medium
B.	it includes hfcs
C.	cable modem connects home pc to ethernet port
D.	analog signal is converted to digital signal in dslam
Answer» D. analog signal is converted to digital signal in dslam

123.	Among the optical-distribution architectures that is essentially switched ehternet is
A.	aon
B.	pon
C.	non
D.	none of the mentioned
Answer» A. aon

124.	StarBand provides
A.	ftth internet access
B.	cable access
C.	telephone access
D.	satellite access
Answer» D. satellite access

125.	Home Access is provided by
A.	dsl
B.	fttp
C.	cable
D.	all of the mentioned
Answer» D. all of the mentioned

980+ Computer Networks Solved MCQs

HTTP client requests by establishing a __________ connection to a particular port on the server.

In HTTP pipelining

FTP server listens for connection on port number

In FTP protocol, client contacts server using ____ as the transport protocol.

In which mode FTP, the client initiates both the control and data connections.

The file transfer protocol is built on

In file transfer protocol, data transfer can be done in

Ethernet frame consists of

What is stat frame delimeter (SFD) in ethernet frame?

What is autonegotiation?

Ethernet in metropolitan area network (MAN) can be used as

A point-to-point protocol over ethernet is a network protocol for

High speed ethernet works on

The maximum size of payload field in ethernet frame is

What is interframe gap?

An ethernet frame that is less than the IEEE 802.3 minimum length of 64 octets is called

Which of this is not a constituent of residential telephone line?

In DSL telco provides these services

The function of DSLAM is

The following term is not associted with DSL

HFC contains

Choose the statement which is not applicable for cable internet access

Among the optical-distribution architectures that is essentially switched ehternet is

StarBand provides

Home Access is provided by

ONT is connected to splitter using

The sharing of a medium and its link by two or more devices is called _______

Multiplexing is used in _______

Which multiplexing technique transmits digital signals ?

If there are n signal sources of same data rate than TDM link has _______ slots

If link transmits 4000frames per second, and each slot has 8 bits,the transmission rate of circuit this TDM is

The state when dedicated signals are idle are called

Multiplexing can provide

In TDM, the transmission rate of the multiplexed path is usually _______ the sum of the transmission rates of the signal sources.

In TDM, slots are further divided into

Multiplexing technique that shifts each signal to a different carrier frequency

Physical or logical arrangement of network is

In this topology there is a central controller or hub

This topology requires multipoint connection

Data communication system spanning states, countries, or the whole world is

Data communication system within a building or campus is

Expand WAN

A local telephone network is an example of a _______ network

Most packet switches use this principle

If there are N routers from source to destination, total end to end delay in sending packet P(L->number of bits in the packet R-> transmission rate)

Method(s) to move data through a network of links and switches

The resources needed for communication between end systems are reserved for the duration of session between end systems in ________

As the resouces are reserved between two communicating end systems in circuit switching, this is achieved

What is internet?

To join the internet, the computer has to be connected to a

126.	ONT is connected to splitter using
A.	high speed fibre cable
B.	hfc
C.	optical cable
D.	none of the mentioned
Answer» C. optical cable

127.	The sharing of a medium and its link by two or more devices is called _______
A.	fully duplexing
B.	multiplexing
C.	both a and b
D.	none of the mentioned
Answer» B. multiplexing

128.	Multiplexing is used in _______
A.	packet switching
B.	circuit switching
C.	data switching
D.	none of the mentioned
Answer» B. circuit switching

129.	Which multiplexing technique transmits digital signals ?
A.	fdm
B.	tdm
C.	wdm
D.	none of the mentioned
Answer» B. tdm

130.	If there are n signal sources of same data rate than TDM link has _______ slots
A.	n
B.	n/2
C.	n*2
D.	2^n
Answer» A. n

131.	If link transmits 4000frames per second, and each slot has 8 bits,the transmission rate of circuit this TDM is
A.	32kbps
B.	500bps
C.	500kbps
D.	none of the mentioned
Answer» A. 32kbps

132.	The state when dedicated signals are idle are called
A.	death period
B.	poison period
C.	silent period
D.	none of the mentioned
Answer» C. silent period

133.	Multiplexing can provide
A.	efficiency
B.	privacy
C.	anti jamming
D.	both a and b
Answer» D. both a and b

134.	In TDM, the transmission rate of the multiplexed path is usually _______ the sum of the transmission rates of the signal sources.
A.	greater than
B.	lesser than
C.	equal to
D.	equal to or greater than
Answer» A. greater than

135.	In TDM, slots are further divided into
A.	seconds
B.	frames
C.	packets
D.	none of the mentioned
Answer» B. frames