Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2601: In polling, what is the role of the primary station?
- A: Encrypt data
- B: Control link
- C: Store backup
- D: Monitor power usage
View Answer
B
Q2602: Which device initiates communication in the polling method?
- A: Secondary station
- B: Client device
- C: Primary station
- D: Control node
View Answer
C
Q2603: In polling, all communication must go through the ______ device.
- A: Backup
- B: Secondary
- C: Primary
- D: Control
View Answer
C
Q2604: What is the main control responsibility of the primary station in polling?
- A: Monitoring collisions
- B: Controlling link
- C: Sending encryption keys
- D: Executing backups
View Answer
B
Q2605: Fill in the blank: The ______ device gives permission for others to send in polling.
- A: Primary
- B: Backup
- C: Slave
- D: Bridge
View Answer
A
Q2606: Which function does the primary station perform in polling?
- A: Select and Poll
- B: Encrypt and Store
- C: Send and Request
- D: Acknowledge and Forward
View Answer
A
Q2607: Fill in the blank: In token passing, a station must wait for a ______ to transmit data.
- A: Key
- B: Poll
- C: Token
- D: Permission
View Answer
C
Q2608: Which of the following ensures only one station transmits at a time in token passing?
- A: Token
- B: Encryption
- C: Primary Station
- D: Acknowledgement
View Answer
A
Q2609: In token passing, how is data transmission permission granted?
- A: Using a schedule
- B: Using a token
- C: Using reservation
- D: Using encryption key
View Answer
B
Q2610: What happens if a station does not have the token in token passing?
- A: It transmits immediately
- B: It stores the frame
- C: It must wait
- D: It drops connection
View Answer
C