Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1391: Bandwidth sharing in FHSS is achieved through ______.
- A: multiple simultaneous transmissions
- B: taking turns using frequencies
- C: continuous frequency jamming
- D: using identical hopping codes
View Answer
B
Q1392: Which method spreads the signal across multiple frequencies by hopping between them?
- A: FDM
- B: FHSS
- C: DSSS
- D: AM
View Answer
B
Q1393: Which of the following is true about DSSS?
- A: It compresses signal to reduce bandwidth
- B: It increases data rate
- C: It expands signal using chips
- D: It reduces security risks
View Answer
C
Q1394: In DSSS, what is the sequence used to expand each data bit?
- A: Hopping code
- B: Error code
- C: Spreading code
- D: Parity check code
View Answer
C
Q1395: Which layer are transmission media considered part of in the OSI model?
- A: Data link layer
- B: Network layer
- C: Application layer
- D: Layer zero
View Answer
D
Q1396: What type of media is twisted pair cable classified as?
- A: Wireless media
- B: Optical media
- C: Metallic media
- D: Non-metallic media
View Answer
C
Q1397: Twisted pair and coaxial cables are examples of ______.
- A: Non-conductive media
- B: Optical media
- C: Metallic media
- D: Wireless media
View Answer
C
Q1398: What is the role of transmission media in the OSI model?
- A: Handle application protocols
- B: Control data encryption
- C: Transmit signals between devices
- D: Manage routing
View Answer
C
Q1399: Which of the following is NOT a metallic transmission medium?
- A: Coaxial cable
- B: Twisted pair
- C: Optical fiber cable
- D: Shielded twisted pair
View Answer
C
Q1400: Fill in the blank: Transmission media that use air or vacuum to carry signals are known as ______.
- A: metallic media
- B: non-metallic media
- C: optical media
- D: free space media
View Answer
D