Recent questions tagged computer-networks

1 votes
1 answer
1533
3 votes
1 answer
1534
Compute approx. optimal window size, when packet size is 53 B, RTT is 60 micro-sec and bottleneck bandwidth is 155Kbps.
0 votes
0 answers
1537
0 votes
1 answer
1538
0 votes
1 answer
1546
Why do we need a "trusted third party" between a client and a receiver when sending a message with a digital signature?I mean what are the consequences if we don't do tha...
0 votes
1 answer
1547
Tcp operates over a 40 Gbps link if TCP uses the full bandwidth continously how long in ms would it take the sequence number to wraparound completely??answer is 0.859sec ...
2 votes
1 answer
1548
I have doubt1: Segment sequence number is equal to the first sequence number of byte in TCP . Is it right ?
0 votes
0 answers
1549
2 votes
1 answer
1553
1)What is switching? And in which layer switching happens?2)Is circuit better than packet in OSI model?3)Main difference between circuit switching and packet switching?
1 votes
1 answer
1554
In TCP we use single retransmission timer (associated with oldest unacknowledged segment) or multiple timers(one for each unacknowledged segment)?
0 votes
1 answer
1556
In cryptography, we get privacy for Sender and ReceiverBut why digital signature doesnot provide privacy?Any good reason for it?
1 votes
2 answers
1559
0 votes
1 answer
1560
TCP send an SYN=1 and an ACK=1 for data transfer . After data has transferred TCP client want to close the connection sending FIN. So, for closing the connection, what TC...