Welcome to Networking Quiz, Entry Level !!

Question 1. What makes optical fibers immune to EMI?

They transmit signals in as light rather than electric current.

They are too small for magnetic fields to introduce current in them.

Magnetic fields cannot penetrate the glass of the fiber.

They are readily sheilded by outer conductors in cable.

Question 2. What frequency range is used for FM radio transmission?

Very Low Frequency : 3 kHz to 30 kHz

Low Frequency : 30 kHz to 300 kHz

High Frequency : 3 MHz to 30 MHz

Very High Frequency : 30 MHz to 300 MHz

Question 3. A distributed network configuration in which all data/information pass through a central computer is

bus network

star network

ring network

point-to-point network

Question 4. Which of the following layer protocols are responsible for user and the application programmer support such as passwords, resource sharing, file transfer and network management?

Layer 7 protocols

Layer 6 protocols

Layer 5 protocols

Layer 4 protocols

Question 5. Which of the following is not a reason to use fiber-optic cables for point to point data transmission?

Need to assure data security.

Avoidance of ground loops.

Data-transfer rates too low to use metal cables.

Elimination of spark hazards.

Question 6. Your company has a LAN in its downtown office and has now set up a LAN in the manufacturing plant in the suburbs. To enable everyone to share data and resources between the two LANs, what type of device(s) are needed to connect them? Choose the most correct answer.

modem

cable

Hub

Router

Question 7. What is the default subnet mask for a class C network?

127.0.0.1

255.0.0.0

255.255.255.0

255.255.0.0

Question 8. Which of the following is used for modulation and demodulation?

modem

protocols

gateway

multiplexer

Question 9. Which layer of OSI determines the interface of the system with the user?

network

application

data-link

session

Question 10. A remote batch-processing operation in which data is solely input to a central computer would require a:

telegraph line

simplex lines

mixedband channel

none of the above