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Computer Networking

Computer Networking
With an IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts?

192
224
240
252
248

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Computer Networking
Unmodulated signal coming from a transmitter is know as

None of these
Carrier signal
Primary signal
Baseband signal

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Computer Networking
Which IP address class has few hosts per network?

B
D
A
C
None of these

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Computer Networking
What are the distinct functions of layer 2 switching that increase available bandwidth on the network?1. Address learning2. Routing3. Forwarding and filtering4. Creating network loops5. Loop avoidance6. IP addressing

2 and 6
3 and 5
2, 4 and 6
1, 3 and 5

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Computer Networking
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.

K I (K - P)
1/ (1 - F)
KIK (1 + F)
P I (K + 1)
None of these

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Computer Networking
What is the name of the device that converts computer output into a form that can be transmitted over a telephone line?

Multiplexer
Concentrator
Modem
Teleport
None of these

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