Computer Networks Interview MCQs

29 MCQs  (Page 2 of 3)

Attempt Computer Networks Interview Quiz
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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A ___________ is an extension of an enterprise’s private intranet across a public network such as the internet, creating a secure private connection.
A. Vnp
B. VPN
C. Vsn
D. Vspn
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When were VPNs introduced into the commercial world?
A. Early 80€?s
B. Late 80€?s
C. Early 90€?s
D. Late 90€?s
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What protocol is NOT used in the operation of a VPN?
A. Pptp
B. Ipsec
C. Ymum
D. L2tp
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Word of the Day
01 Sep
Adhere
stick fast to (a surface or substance).
پیوستہ ہونا، لگا ہوا ہونا، چپکا ہوا ہونا

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