Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1441: Fill in the blank: Coaxial cable has a ______ core surrounded by insulating and shielding layers.
- A: copper
- B: fiber
- C: optical
- D: steel
View Answer
A
Q1442: Which cable type is best suited for long-distance, high-speed data transmission?
- A: Twisted-pair
- B: Coaxial
- C: Fiber optic
- D: Parallel
View Answer
B
Q1443: Which type of cable uses light signals for data transmission?
- A: Twisted-pair
- B: Coaxial
- C: Fiber optic
- D: All of the above
View Answer
C
Q1444: In coaxial cables, the outer metallic shield is used to ______.
- A: provide power
- B: reduce noise
- C: increase bandwidth
- D: improve speed
View Answer
B
Q1445: What distinguishes coaxial cables from twisted-pair cables?
- A: Core insulation
- B: Shielding layers
- C: Copper usage
- D: Wire thickness
View Answer
B
Q1446: Fill in the blank: The signal in guided media is ______ by the physical boundaries of the medium.
- A: amplified
- B: rejected
- C: reflected
- D: contained
View Answer
D
Q1447: Which of the following is most prone to crosstalk?
- A: Coaxial cable
- B: Twisted-pair cable
- C: Fiber optic cable
- D: Optical receiver
View Answer
B
Q1448: Twisted-pair cables are primarily used in ______.
- A: satellite links
- B: optical transmission
- C: telephony and LANs
- D: radio broadcasting
View Answer
C
Q1449: Fill in the blank: The main advantage of fiber optic cable over other guided media is its high ______.
- A: cost
- B: signal loss
- C: speed
- D: weight
View Answer
C
Q1450: Which cable type uses the difference in voltage between two wires to transmit signals?
- A: Fiber optic
- B: Twisted-pair
- C: Coaxial
- D: RF cable
View Answer
B