Computer Network Test Set 3
Q11 | ___________ is a bit-oriented protocol for communication over point-to-point and multipoint links. |
i ➥ HDLC |
ii ➥ Sliding window |
iii ➥ Stop-and-wait |
iv ➥ Go-back-N |
Q12 | Which of the following is false? |
i ➥ Public-key cryptography is also known as asymmetric cryptography |
ii ➥ Asymmetric cryptography uses a pair of cryptographic keys |
iii ➥ A message encrypted with the private key can be decrypted only with the corresponding public key |
iv ➥ The private key is kept secret, while the public key is widely distributed |
Q13 | Calculate the link utilization (throughput) for stop and wait flow control mechanism if the frame size is 4800 bits, bit rate is 9600 bps, and distance between the devices is 2000 km. Given propagation speed is 200000 km/s. |
i ➥ 0.92 |
ii ➥ 0.96 |
iii ➥ 0.82 |
iv ➥ 0.86 |
Q14 | In____authentication, the claimant proves that she knows the secret without sending it to the verifier. |
i ➥ Asymmetric |
ii ➥ Zero knowledge |
iii ➥ Symmetric |
iv ➥ Challenge response |
Q15 | In RSA algorithm if p=7, q=11 and e=13 then what will be the value of d? |
i ➥ 37 |
ii ➥ 13 |
iii ➥ 23 |
iv ➥ 40 |
Weekly Test GATE/NTA NET CSA
11.(i)
12.(iii)
13.(ii)
14.(iv)
15.(i)
Ans 11 – HDLC
Ans 12 – A message encrypted with the private key can be decrypted only with the corresponding public key
Ans 13 – 0.96
Ans 14 – Challenge response
Ans 15 – 37
11-a
12-b
13-b
14-d
15-a
Ans11-i
Ans12-iii
Ans13-ii
Ans14-iv
Ans15-i
11) A
12) C
13)
14) D
15) A
11,ii
12, IV
13, IV
14, I
15,IV