Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1511: What is the main advantage of fiber optic cables?
- A: High resistance to interference
- B: Cheap installation
- C: Used for analog signals
- D: Used only for short distances
View Answer
A
Q1512: Which type of data transmission is supported by fiber optic cables?
- A: Electrical
- B: Magnetic
- C: Optical
- D: Sound
View Answer
C
Q1513: Fiber optic cable is better than coaxial cable in terms of ______.
- A: signal distortion
- B: distance covered
- C: cost
- D: weight
View Answer
B
Q1514: What causes the bending of light in fiber optics?
- A: Magnetism
- B: Temperature change
- C: Change in medium density
- D: Light color
View Answer
C
Q1515: Which of the following is a disadvantage of fiber optic cables?
- A: High bandwidth
- B: Expensive compared to copper cables
- C: No electromagnetic interference
- D: Lightweight
View Answer
B
Q1516: Fill in the blank: ______ is the bending of light as it enters a different medium.
- A: Reflection
- B: Absorption
- C: Refraction
- D: Diffusion
View Answer
C
Q1517: Which layer of the OSI model is concerned with fiber optic cables?
- A: Application layer
- B: Network layer
- C: Physical layer
- D: Session layer
View Answer
C
Q1518: The light in a fiber optic cable is usually kept inside by ______.
- A: mirrors
- B: total internal reflection
- C: coaxial wrapping
- D: magnetic fields
View Answer
B
Q1519: Which term best describes light signal behavior in uniform medium?
- A: Diffused
- B: Refracted
- C: Straight line
- D: Scattered
View Answer
C
Q1520: Fiber optic cables are commonly used in ______.
- A: telephone lines
- B: electrical wiring
- C: TV remotes
- D: power lines
View Answer
A