Current Affairs 2021 PDF

To crack any competitive exam like SSC, Railways, Insurance, UPSC, CLAT, Banking, State PSC Exams and other exams it is very important to answer all current affairs questions correctly. Gkseries Updates Current Affairs and Q&A packages in compiled and sorted topic wise to ensure easy accessibility of the information.

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MCQ Questions with Answers on Data Communication and Computer Networks

1 In circuit-switching, the path
A upto destination is allocated before the transmission of message begins
B upto next intermediate node is allocated before the transmission of message begins
C to be followed depends on the length of the message
D none of the above

Answer: Option [A]

In Circuit-switching the two source and destination nodes establish a dedicated communication channel before the actual begins.

2 In which of the following networks, reassembly buffers are required ?
A Packet-switched networks
B Circuit-switched networks
C Message-switched networks
D None of these

Answer: Option [B]
3 Which of the networks allow different speed links ?
A Message-switched networks
B Packet-switched networks
C Circuit-switched networks
D None of these above

Answer: Option [B]

Packet switched networks allow different speed links. This network arranges all transmitted data suitable sized block called packets.

4 Switching systems
A are limited to small data networks
B require additional lines
C are not used presently
D none of these

Answer: Option [B]
5 Which of the following networks supports pipelining effect ?
A Circuit-switched networks
B Message-switched networks
C Packet-switched networks
D None of the above

Answer: Option [C]


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