An IP machine Q has a path to another IP machine H via three IP routers R1,…
GATE · 2014 · CS · Set 2 · Computer Science & IT
An IP machine Q has a path to another IP machine H via three IP routers R1, R2, and R3.
Q—R1—R2—R3—H
H acts as an HTTP server, and Q connects to H via HTTP and downloads a file. Session layer encryption is used, with DES as the shared key encryption protocol. Consider the following four pieces of information
[I1] The URL of the file downloaded by Q
[I2] The TCP port numbers at Q and H
[I3] The IP addresses of Q and H
[I4] The link layer addresses of Q and H
Which of I1, I2, I3, and I4 can an intruder learn through sniffing at R2 alone?
- A.
Only I1 and I2
- B.
Only I1
- C.
Only I2 and I3
- D.
Only I3 and I4
Attempted by 42 students.
Sign up free to check your answer
Sign up freeLoading lesson…