1
GATE CSE 2022
Numerical
+1
-0.33

Consider the data transfer using TCP over a 1 Gbps link. Assuming that the maximum segment lifetime (MSL) is set to 60 seconds, the minimum number of bits required for the sequence number field of the TCP header, to prevent the sequence number space from wrapping around during the MSL is ___________.

Your input ____
2
GATE CSE 2019
MCQ (Single Correct Answer)
+1
-0.33
Which of the following protocol pairs can be used to send and retrieve e-mails (in that order)?
A
IMAP, SMTP
B
SMTP, POP3
C
IMAP, POP3
D
SMTP, MIME
3
GATE CSE 2018
Numerical
+1
-0
Consider a long-lived $$TCP$$ session with an end-to-end bandwidth of $$1$$ $$Gbps$$ ($$ = {10^9}\,$$ bits-persecond). The session starts with a sequence number of $$1234.$$ The minimum time (in seconds, rounded to the closest integer) before this sequence number can be used again is _______.
Your input ____
4
GATE CSE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Suppose two hosts use a TCP connection to transfer a large file. Which of the following statements is/are FALSE with respect to the TCP connection?

I. If the sequence number of a segment is m, then the sequence number of the subsequent segment is always m + 1.
II. If the estimated round trip time at any given point of time is t sec, the value of the retransmission timeout is always set to greater than or equal to t sec.
III. The size of the advertised window never changes during the course of the TCP connection.
IV. The number of unacknowledged bytes at the sender is always less than or equal to the advertised window

A
III only
B
I and III only
C
I and IV only
D
II and IV only
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