Physical Layer - Part 10 - MCQs with Answers

Physical Layer - Part 10 - MCQs with Answers

Datagram Packet Switching

1. Why is the destination address examined in the header while routing the packets in datagram switching?

a. For determination of next hop in the path towards the destination
b. For determination of previous hop in the path towards the destination
c. For determination of next hop generated from the source
d. For determination of previous hop generated from the source

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2. What are the relevant drawbacks associated with an independent form of routing mechanism in datagram packet switching?

A. Traversing of the packets from same source to same destination through different paths

B. Occurrence of maximum overhead

C. Arrival of packets is not in a sequential order at the destination

D. Establishment of logical connection between source and destination

a. A, B & D
b. B, C & D
c. A, B & C
d. A, C & D

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3.The occurrence of next hops is specified and maintained in a routing table at ______

a. source
b. destination
c. each node
d. all of the above

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4. What kind of error control services are offered by the Data transfer Phase in the virtual packet switching?

a. Correct sequencing of packets
b. Correct arrival of packets
c. Both a & b
d. None of the above

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5. The sequence of the packetized information to be transmitted between the nodes in an establishment phase of virtual packet switching is ________

a. unidirectional in nature
b. bidirectional in nature
c. multi-directional in nature
d. unpredictable in nature

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6. When does the fixed path get established between the source and destination in the virtual packet switching network?

a. Before the transmission of packets
b. After the transmission of packets
c. During the transmission of packets
d. All of the above

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