Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Computer Networks Concept of Layering Data Link Layer
Which of the following statements are true?
(a) Three broad categories of Networks are:
(i) Circuit Switched Networks
(ii) Packet Switched Networks
(iii) Message Switched Networks
(b) Circuit Switched Network resources need not be reserved during the set up phase.
(c) In packet switching there is no resource allocation for packets.1
(a) and (b) only
2
(b) and (c) only
3
(a) and (c) only
4
(a), (b) and (c)