Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2421: What type of protocol is CHAP classified as?
- A: Connection-oriented
- B: Challenge-response
- C: One-time password
- D: Encryption protocol
View Answer
B
Q2422: What makes CHAP more secure than PAP?
- A: It encrypts the link
- B: It uses static passwords
- C: It uses a challenge-response mechanism
- D: It relies on firewalls
View Answer
C
Q2423: Which PPP authentication protocol is vulnerable to replay attacks due to clear-text password transmission?
- A: CHAP
- B: IPSec
- C: PAP
- D: HTTPS
View Answer
C
Q2424: Fill in the blank: CHAP stands for ______.
- A: Control Handshake Authentication Protocol
- B: Central Host Access Protocol
- C: Challenge Handshake Authentication Protocol
- D: Coding Host Authentication Procedure
View Answer
C
Q2425: What role do PAP and CHAP serve in PPP?
- A: Data encryption
- B: Address resolution
- C: Authentication
- D: Link encapsulation
View Answer
C
Q2426: Which of the following protocols is responsible for handling multiple network-layer protocols in PPP?
- A: PAP
- B: LCP
- C: NCP
- D: CHAP
View Answer
C
Q2427: Which protocol family handles IP configuration and support within PPP?
- A: PAP
- B: NCP
- C: LCP
- D: IPSec
View Answer
B
Q2428: Fill in the blank: ______ protocols allow PPP to support multiple network-layer protocols like IP, IPX, and AppleTalk.
- A: Authentication
- B: Framing
- C: Network Control
- D: Address Resolution
View Answer
C
Q2429: What is the function of NCP in PPP?
- A: Encrypts data
- B: Configures and enables different network-layer protocols
- C: Handles flow control
- D: Performs DNS lookups
View Answer
B
Q2430: Which PPP protocol is responsible for negotiating options for network-layer protocols?
- A: NCP
- B: CHAP
- C: PAP
- D: UDP
View Answer
A