Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1531: What allows light to travel long distances in fiber optic cables without loss?
- A: Magnetism
- B: Total internal reflection
- C: Frequency hopping
- D: Radio modulation
View Answer
B
Q1532: Fill in the blank: In fiber optics, the ______ guides the light through the core.
- A: outer sheath
- B: cladding
- C: plastic casing
- D: wire insulation
View Answer
B
Q1533: What is the main characteristic of multimode fiber optics?
- A: It carries data over long distances
- B: It uses a single light path
- C: It carries multiple light signals at the same time
- D: It is made of copper
View Answer
C
Q1534: Multimode fiber optics are most commonly used for ______.
- A: Long-distance communication
- B: High-speed internet connections
- C: Short-distance communication
- D: Wireless communication
View Answer
C
Q1535: Fill in the blank: Multimode fiber optic cables are designed to carry ______ light signals at the same time.
- A: a single
- B: multiple
- C: strong
- D: weak
View Answer
B
Q1536: Which of the following is true about multimode fiber optics?
- A: It has a single core for light to travel through
- B: It is designed for long-distance transmission
- C: It has a larger core diameter compared to single-mode fiber
- D: None of the above
View Answer
C
Q1537: What causes signal degradation in multimode fiber optics?
- A: Multiple light paths interfering with each other
- B: Single light path interference
- C: Weak light sources
- D: Slow data transmission
View Answer
A
Q1538: Which is a key advantage of multimode fiber optics?
- A: It is more durable than single-mode fiber
- B: It is used for long-distance transmission
- C: It is less expensive and easier to install for shorter distances
- D: All of the above
View Answer
C
Q1539: Fill in the blank: In multimode fiber optics, the ______ determines how light is transmitted.
- A: core diameter
- B: radius
- C: refractive index
- D: attenuation factor
View Answer
A
Q1540: Which type of multimode fiber has the smallest core diameter?
- A: OM1
- B: OM2
- C: OM3
- D: OM4
View Answer
C