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Wireless Mobile Communications
Network Protocols
Q
In IPv4 layer, datagram is of ________
AA. Fixed length
BB. Variable length
CC. Global length
DD. Zero length
Correct Answer:
B. B. Variable length
Explanation:
‘IPv4 is a connectionless protocol used for packet switched networks. It operates on best effort delivery model, in which neither delivery is guaranteed, nor proper sequencing or avoidance of duplicate delivery is assured. The size of the datagram header can be of variable length from 20 bytes to 60 bytes.’
