Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 108
Q1521:
What are fiber optic cables primarily made of?
A. Copper
B. Aluminum
C. Glass or plastic
D. Steel
Correct Answer:
C
Chapter: 108
Q1522:
Fiber optic cables transmit data using ______.
A. Electricity
B. Sound waves
C. Light
D. Radio waves
Correct Answer:
C
Chapter: 108
Q1523:
Fill in the blank: Fiber optic cables transmit signals in the form of ______.
A. sound
B. radio waves
C. light
D. magnetic fields
Correct Answer:
C
Chapter: 108
Q1524:
Which of the following is a key component of a fiber optic cable?
A. Metal wires
B. Glass or plastic fibers
C. Copper shielding
D. Aluminum threads
Correct Answer:
B
Chapter: 108
Q1525:
What is the main function of fiber optic cables in data communication?
A. To block interference
B. To transmit light signals
C. To store data
D. To encode software
Correct Answer:
B
Chapter: 108
Q1526:
Fill in the blank: The core of a fiber optic cable is typically made from ______.
A. rubber
B. copper
C. glass or plastic
D. steel
Correct Answer:
C
Chapter: 108
Q1527:
Which medium is most suitable for long-distance and high-speed data transmission?
A. Coaxial cable
B. Twisted-pair cable
C. Fiber optic cable
D. Power cable
Correct Answer:
C
Chapter: 108
Q1528:
The material used in fiber optic cables must be capable of ______.
A. conducting electricity
B. transmitting magnetic pulses
C. transmitting light
D. bouncing sound waves
Correct Answer:
C
Chapter: 108
Q1529:
Fiber optic cables rely on the principle of ______ for signal transmission.
A. Resonance
B. Magnetic Induction
C. Light reflection
D. Sound bouncing
Correct Answer:
C
Chapter: 108
Q1530:
Which one of these is NOT a component of fiber optic cable?
A. Core
B. Cladding
C. Copper wire
D. Jacket
Correct Answer:
C
Chapter: 108
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
Correct Answer:
B
Chapter: 108
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
Correct Answer:
B
Chapter: 109
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
Correct Answer:
C
Chapter: 109
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
Correct Answer:
C
Chapter: 109
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
Correct Answer:
B
Chapter: 109
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
Correct Answer:
C
Chapter: 109
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
Correct Answer:
A
Chapter: 109
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
Correct Answer:
C
Chapter: 109
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
Correct Answer:
A
Chapter: 109
Q1540:
Which type of multimode fiber has the smallest core diameter?
A. OM1
B. OM2
C. OM3
D. OM4
Correct Answer:
C