Question

In OSPF database descriptor packet, if there are more database descriptor packets in the flow, ‘M’ field is set to ____________

(a) 1

(b) 0

(c) more

(d) -1

This question was addressed to me during an online interview.

The above asked question is from OSPF in portion Network Layer of Computer Network

Answer 1

Right option is (a) 1

For explanation: The “M” bit is the more bit, which indicates that there are more packets to be received in the descriptor packet flow whenever it is set to 1. There is also an “I” bit which indicates if the packet is first in the flow.