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Computer Networking

Computer Networking
Which network topology is considered passive?

Cross
Star
Ring
Mesh
Bus

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Computer Networking
The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols, needs authentication of users connecting to the network, and since some calls will be long distance, needs callback support. Which of the following protocols is the best choice for these remote services?

Frame Relay
802.1
PAP
HDLC
PPP

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Computer Networking
Which configuration command must be in effect to allow the use of 8 subnets if the Class C subnet mask is 255.255.255.224?

Router (config) #ip classless
Router (config) #ip subnet-zero
Router (config) #ip unnumbered
Router (config) #no ip classful

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Computer Networking
If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _____.

42
indeterminate
odd
even

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Computer Networking
Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM?

Amplitude modulation
Frequency-division multiple access
Frequency modulation
None of these
Frequency-shift keying

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Computer Networking
What is the frequency range of the IEEE 802.11b standard?

2.4Gbps
5GHz
2.4GHz
5Gbps

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