Freshers MCQs

10 MCQs — Computer Networks Interview MCQs

Practice Freshers MCQs with correct answers and explanations. These questions are from the Computer Networks Interview MCQs section.

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Computer Networks Interview Subcategories

Campus Interviews	Computer Networks Interview
Experienced	Freshers

The receiver of the data controls the amount of data that are to be sent by the sender is referred to as ___________

A. Flow control
B. Error control
C. Congestion control
D. Error detection

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Size of TCP segment header ranges between ___________

A. 16 and 32 bytes
B. 16 and 32 bits
C. 20 and 60 bytes
D. 20 and 60 bits

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Connection establishment in TCP is done by which mechanism?

A. Flow control
B. Three-way handshaking
C. Forwarding
D. Synchronization

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The server program tells its TCP that it is ready to accept a connection. This process is called ___________

A. Active open
B. Active close
C. Passive close
D. Passive open

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A client that wishes to connect to an open server tells its TCP that it needs to be connected to that particular server. The process is called ___________

A. Active open
B. Active close
C. Passive close
D. Passive open

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In Three-Way Handshaking process, the situation where both the TCP’s issue an active open is ___________

A. Mutual open
B. Mutual close
C. Simultaneous open
D. Simultaneous close

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A malicious attacker sends a large number of SYNC segments to a server, pretending that each of them is coming from a different client by faking the source IP address in the datagram. Which type of attack is being performed in this situation?

A. Sync flooding attack
B. Active attack
C. Passive attack
D. Denial-of-service attack

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SYNC flooding attack belongs to a type of security attack known as ___________

A. Sync flooding attack
B. Active attack
C. Passive attack
D. Denial-of-service attack

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The sizes of source and destination port address in TCP header are ___________ respectively.

A. 16-bits and 32-bits
B. 16-bits and 16-bits
C. 32-bits and 16-bits
D. 32-bits and 32-bits

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What allows TCP to detect lost segments and in turn recover from that loss?

A. Sequence number
B. Acknowledgment number
C. Checksum
D. Both sequence & acknowledgment number

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