Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1551: Which of the following is NOT true about single-mode fiber optics?
- A: They provide high bandwidth
- B: They support short-distance communication
- C: They use a small core
- D: They are used in telecommunication networks
View Answer
B
Q1552: Fill in the blank: Single-mode fibers are more suitable for ______ transmission environments.
- A: urban
- B: wireless
- C: long-distance
- D: home
View Answer
C
Q1553: Which type of laser is commonly used with single-mode fibers?
- A: LED
- B: Laser Diode
- C: Neon
- D: Fluorescent
View Answer
B
Q1554: What is the main reason single-mode fiber can transmit over longer distances than multimode fiber?
- A: Smaller core size
- B: Use of light signals
- C: More light paths
- D: Better outer covering
View Answer
A
Q1555: In single-mode fiber, which part of the fiber guides the light signal?
- A: Buffer coating
- B: Core
- C: Cladding
- D: Jacket
View Answer
B
Q1556: Fill in the blank: The light in single-mode fiber travels in a ______ path.
- A: zig-zag
- B: single
- C: looped
- D: bent
View Answer
B
Q1557: What is another name for unguided transmission media?
- A: Cable communication
- B: Fiber-optic transmission
- C: Wireless communication
- D: Satellite wire
View Answer
C
Q1558: Unguided transmission media use ______ to transport signals.
- A: physical cables
- B: light pulses
- C: air as the medium
- D: coaxial wires
View Answer
C
Q1559: In wireless communication, signals are typically transmitted through ______.
- A: copper cables
- B: free space
- C: underground fiber
- D: liquid waves
View Answer
B
Q1560: Fill in the blank: Wireless communication signals are normally ______.
- A: encrypted by default
- B: broadcast through free space
- C: reflected using mirrors
- D: transmitted using wires
View Answer
B