Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2701: Which is a key advantage of CDMA over TDMA?
- A: Code uniqueness
- B: Time synchronization
- C: Bandwidth limitation
- D: User queuing
View Answer
A
Q2702: CDMA differs from TDMA in which of the following ways?
- A: TDMA uses different frequencies
- B: CDMA uses time sharing
- C: CDMA allows simultaneous data transmission for all users
- D: CDMA limits access based on traffic load
View Answer
C
Q2703: In CDMA, all users use the same frequency band ______.
- A: at different times
- B: using unique codes
- C: with limited access
- D: in sequence
View Answer
B
Q2704: Fill in the blank: FDMA divides the bandwidth into separate frequency channels, while CDMA ______.
- A: divides time into slots
- B: assigns different codes to users
- C: uses packet switching
- D: blocks simultaneous access
View Answer
B
Q2705: Which method allows better simultaneous use of bandwidth?
- A: FDMA
- B: TDMA
- C: CDMA
- D: FDM
View Answer
C
Q2706: What happens to the entire bandwidth in CDMA?
- A: Divided among users
- B: Divided into time slots
- C: Used by all users with unique codes
- D: Assigned per session
View Answer
C
Q2707: CDMA is more efficient than TDMA because it allows ______.
- A: users to wait for their time slot
- B: users to use unique frequencies
- C: all users to send data at the same time
- D: using different modulation
View Answer
D
Q2708: Ethernet operates primarily at which layer of the OSI model?
- A: Network layer
- B: Transport layer
- C: Data-link layer
- D: Session layer
View Answer
C
Q2709: The data-link and physical layers are part of which type of networks?
- A: Local and wide area networks
- B: Only wireless networks
- C: Only the internet
- D: Transport networks
View Answer
A
Q2710: The Ethernet protocol is primarily used in which type of network?
- A: Local Area Network (LAN)
- B: Wide Area Network (WAN)
- C: Metropolitan Area Network (MAN)
- D: Virtual Private Network (VPN)
View Answer
A