Networking – Section 1

6. You have a class A network address 10.0.0.0 with 40 subnets but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?

A. 255.240.0.0
B. 255.248.0.0
C. 255.252.0.0
D. 255.254.0.0
E. 255.255.255.255

Correct Answer: D. 255.254.0.0

7. What are the most commonly used transmission speeds in BPS used in data communication?

A. 300
B. 1200
C. 2400
D. 9600
E. None of the above

Correct Answer: D. 9600

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

A. 127.0.0.1
B. 255.0.0.0
C. 255.255.0.0
D. 255.255.255.0
E. None of the above

Correct Answer: D. 255.255.255.0

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

A. modem
B. protocols
C. gateway
D. multiplexer
E. None of the above

Correct Answer: A. modem

10. Which of the following is not a disadvantage of wireless LAN?

A. Slower data transmission
B. higher error rate
C. interference of transmissions from different computers
D. All of the above

Correct Answer: D. All of the above

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