In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______
Which field helps to check rearrangement of the fragments?
In Go-Back-N window, when the timer of the packet times out, several packets have to be resent even some may have arrived safe. whereas in Selective Repeat window, tries to send ___________
Retransmission of packets must be done when
In open-loop control, policies are applied to __________
Two broad categories of congestion control are
The technique of temporarily delaying outgoing outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called
Which one of the following is the multiple access protocol for channel access control?
Which one of the following is a data link protocol?
Network congestion occurs
Bluetooth is an example of
Communication channel is shared by all the machines on the network in
In computer network nodes are
In a network, If P is the only packet being transmitted and there was no earlier transmission, which of the following delays could be zero
WPA2 is used for security in
