Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q3401: What layers does a link-layer switch operate on?
- A: Physical and Transport
- B: Application and Network
- C: Physical and Data-link
- D: Session and Application
View Answer
C
Q3402: Fill in the blank: A switch can check the ______ address in a data frame.
- A: IP
- B: MAC
- C: DNS
- D: Port
View Answer
B
Q3403: Which device has the capability to filter frames based on MAC addresses?
- A: Hub
- B: Switch
- C: Router
- D: Modem
View Answer
B
Q3404: What is a key difference between a hub and a switch?
- A: Switch can regenerate signals only
- B: Hub can filter frames
- C: Switch filters based on destination MAC address
- D: Hub works on data-link layer
View Answer
C
Q3405: Which device helps in eliminating collisions in a network?
- A: Router
- B: Hub
- C: Switch
- D: Bridge
View Answer
C
Q3406: Fill in the blank: A switch ______ the signal at the physical layer.
- A: enriches
- B: encrypts
- C: regenerates
- D: deletes
View Answer
C
Q3407: What allows a switch to send frames only to the correct device?
- A: Frame duplication
- B: Frame filtering
- C: MAC broadcasting
- D: Signal amplification
View Answer
B
Q3408: Switches are capable of connecting ________ devices.
- A: identical
- B: similar
- C: heterogeneous
- D: none of these
View Answer
C
Q3409: Which of the following can lead to loops in a switch-based network?
- A: Single broadcasting LAN
- B: One switch only
- C: Redundant switches connected to broadcasting LANs
- D: Using routers instead of switches
View Answer
C
Q3410: What issue arises when multiple switches connect multiple broadcasting LANs?
- A: Interference
- B: Signal loss
- C: Loop problem
- D: Data compression
View Answer
C