Chapter Exam

Chapter 13: Network Cabling — Online MCQ Test

Q: Which cable uses twisted pairs of copper wires to reduce interference?

Answer: A. Twisted pair cable — Twisted pair cable consists of pairs of insulated copper wires twisted together to reduce crosstalk and electromagnetic interference.

Q: Which connector is commonly used with Ethernet twisted pair cables?

Answer: B. RJ45 — RJ45 is the standard connector used for Ethernet connections in twisted pair cabling.

Q: Why are the wires in a twisted pair cable twisted together?

Answer: C. To reduce electromagnetic interference — The twisting helps cancel out interference and crosstalk from nearby cables or devices.

Q: A student says: 'RJ45 is a type of cable used in Ethernet networks.' Which option is the best correction?

Answer: A. RJ45 is a connector, not a cable — RJ45 refers to the connector used at the end of Ethernet cables, especially twisted pair cables.

COMPUTER APPLICATIONS · CLASS 12th · Tamil Nadu State Board

Practice Chapter 13: Network Cabling with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 12th COMPUTER APPLICATIONS. This chapter covers: This chapter explores structured cabling systems and physical transmission media. Students examine twisted pair cables coaxial cables fiber optics RJ45 connectors Ethernet crimping.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 13: Network Cabling — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 12th COMPUTER APPLICATIONS — Chapter 13: Network Cabling, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which cable uses twisted pairs of copper wires to reduce interference?

A. Twisted pair cable ✓
B. Fiber optic cable
C. Coaxial cable
D. Power cable

Answer: A. Twisted pair cable
Twisted pair cable consists of pairs of insulated copper wires twisted together to reduce crosstalk and electromagnetic interference.

Which connector is commonly used with Ethernet twisted pair cables?

A. BNC
B. RJ45 ✓
C. SC
D. F-type

Answer: B. RJ45
RJ45 is the standard connector used for Ethernet connections in twisted pair cabling.

Why are the wires in a twisted pair cable twisted together?

A. To increase cable length
B. To prevent data loss completely
C. To reduce electromagnetic interference ✓
D. To make the cable waterproof

Answer: C. To reduce electromagnetic interference
The twisting helps cancel out interference and crosstalk from nearby cables or devices.

A network technician crimped an RJ45 connector, but the cable does not work. What is the most likely cause?

A. The cable was not twisted enough
B. The wire order in the connector may be incorrect ✓
C. The patch panel is always faulty
D. Fiber optic strands were used

Answer: B. The wire order in the connector may be incorrect
If the wire sequence is incorrect, the Ethernet connection may fail even if the connector is crimped properly.

A student says: 'RJ45 is a type of cable used in Ethernet networks.' Which option is the best correction?