Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2531: Fill in the blank: In p-persistent CSMA, stations transmit with a ______ probability.
- A: zero
- B: one
- C: half
- D: given
View Answer
D
Q2532: Which persistence method offers a compromise between efficiency and collision?
- A: 1-persistent
- B: non-persistent
- C: p-persistent
- D: aggressive mode
View Answer
C
Q2533: What is a major advantage of non-persistent CSMA?
- A: High speed
- B: Low complexity
- C: Low chance of collision
- D: Faster response
View Answer
C
Q2534: Which CSMA strategy increases the chance of collision the most?
- A: non-persistent
- B: p-persistent
- C: 1-persistent
- D: random access
View Answer
C
Q2535: What is the key difference between CSMA and ALOHA?
- A: ALOHA requires polling
- B: CSMA senses the medium before transmission
- C: ALOHA is collision-free
- D: CSMA uses encryption
View Answer
B
Q2536: Fill in the blank: CSMA reduces collisions by requiring stations to check if the ______ is free.
- A: buffer
- B: link
- C: queue
- D: medium
View Answer
D
Q2537: Which of the following terms is associated with CSMA?
- A: Synchronous transmission
- B: Listen Before Talk
- C: Dual encoding
- D: Packet fragmentation
View Answer
B
Q2538: What does the 'carrier' in CSMA stand for?
- A: Data frame
- B: Medium
- C: Signal carrier
- D: Channel
View Answer
C
Q2539: What does CSMA/CD stand for?
- A: Carrier Signal Monitoring Algorithm for Collision Detection
- B: Carrier Sense Multiple Access with Collision Detection
- C: Collision Sense Method Access
- D: Carrier Selection and Medium Arbitration
View Answer
B
Q2540: What major feature does CSMA/CD add to CSMA?
- A: Collision prevention
- B: Encryption
- C: Collision handling and retransmission
- D: Centralized control
View Answer
C