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Computer Networking

Computer Networking
In a _____ topology, if there are n devices in a network, each device has n - 1 ports for cables.

star
None of these
bus
ring
mesh

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Computer Networking
Four bits are used for packet sequence numbering in a sliding window protocol used in a computer network. What is the maximum window size?

None of these
16
8
4
15

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Computer Networking
Which of the following is used for modulation and demodulation?

multiplexer
modem
protocols
gateway
None of these

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Computer Networking
In cyclic redundancy checking what is the CRC?

the remainder
the divisor
the quotient
the dividend
None of these

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Computer Networking
When the computer provides the manager with a multiple choice of possible answers, the prompting technique is

menu selection
form filling
question and answer
open-ended question
None of these

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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.

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

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