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Data Communication MCQs with Answers

Practice important Data Communication MCQs with answers and explanations.

Multiple Choice Questions

Q2411: Which of the following tasks is not typically performed by LCP?
  • A: Link termination
  • B: Flow control testing
  • C: Link quality testing
  • D: DNS resolution
View Answer
D

Q2412: Which of the following is a PPP authentication protocol?
  • A: IPSec
  • B: SSL
  • C: PAP
  • D: SMTP
View Answer
C

Q2413: Fill in the blank: ______ and CHAP are two authentication protocols used in PPP.
  • A: IPSec
  • B: PAP
  • C: TLS
  • D: SSH
View Answer
B

Q2414: Which PPP authentication protocol uses a two-way handshake?
  • A: TLS
  • B: PAP
  • C: CHAP
  • D: FTP
View Answer
B

Q2415: Which PPP authentication protocol is more secure due to its challenge-response mechanism?
  • A: PAP
  • B: CHAP
  • C: SMTP
  • D: NCP
View Answer
B

Q2416: CHAP authentication involves how many steps?
  • A: 1
  • B: 2
  • C: 3
  • D: 4
View Answer
C

Q2417: Which protocol in PPP uses a challenge and response to authenticate a user?
  • A: PAP
  • B: CHAP
  • C: NCP
  • D: LCP
View Answer
B

Q2418: Fill in the blank: PAP is ______ than CHAP in terms of security.
  • A: more secure
  • B: less secure
  • C: equal
  • D: non-functional
View Answer
B

Q2419: CHAP packets are encapsulated inside which type of frame?
  • A: IP
  • B: ARP
  • C: PPP
  • D: TCP
View Answer
C

Q2420: Which protocol periodically verifies the identity of the peer using a three-way handshake?
  • A: PAP
  • B: CHAP
  • C: IP
  • D: LCP
View Answer
B

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