Networking Essentials: Cabling, Transmission, and Devices Q&A

Networking Concepts: Questions and Answers

1. Which OSI Layer Handles Binary Transmission and Physical Aspects?

Answer: The Physical Layer

2. Device for Fiber Optic Fault Monitoring and Performance?

Answer: Optical Time-Domain Reflectometer (OTDR)

3. Key Characteristics of Fiber Optic Cable

• It is not affected by Electromagnetic Interference (EMI) or Radio Frequency Interference (RFI).
• It is generally the most expensive type of LAN cabling.

4. When to Use a Straight-Through Cable?

Answer: When connecting a host to a switch.

5. Cat 5 Cable for Direct Host-to-Host Ethernet Connection?

Answer: Crossover cable.

6. Signal Transmission Method Using Radio Waves?

Answer: Wireless.

7. Common Connector for Twisted Pair Cable in Business LANs?

Answer: RJ-45.

8. Characteristic of Single-Mode Fiber Optic Cable?

Answer: Generally uses a laser as its light source.

9. Primary Application for Fiber Optic Cable?

Answer: Backbone cabling.

10. Three Measures of Data Transfer?

Answer: Goodput, Throughput, and Bandwidth.

11. What Causes Interference in UTP Copper Wire?

Answer: The magnetic field around adjacent cable pairs.

12. Primary Function of the Physical Layer in Data Transmission?

Answer: To create signals that represent bits for transmission over the communication media.

13. Recommended Media for Backbone Cabling with EMI/Electrical Hazards?

Answer: Fiber optic cable.

14. Effects of Improperly Applied Network Cable Connectors?

Answer: Data transmitted through that cable may experience signal loss or an improper signaling method.

15. Fiber Connector Supporting Full Duplex Ethernet?

Answer: The original document states "Options correct answer is three (Kolmas)", but does not specify the connector type.

16. Key Benefit of Wireless Media?

Answer: Increased host mobility.

17. UTP Cable Feature Reducing Interference?

Answer: The twisting of the wires within the cable.