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Computer Networking

Computer Networking
What is the maximum distance with maximum data rate for 802.11b?

Over 200 feet
About 90-100 feet
About 150 feet
About 65-75 feet

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Computer Networking
We can receive data either through our television aerial or down our telephone lines and display this data on our television screen. What is the general name given to this process?

Videotex
Teletext
Viewdata
None of these
Telesoftware

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Computer Networking
Which of the following signals is not standard RS - 232-C signal?

VDR
None of these
DSR
RTS
CTS

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Computer Networking
Which of the following is a voiceband channel?

Telegraph line
Microwave systems
Telephone line
None of these
Coaxial cable

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Computer Networking
Establishing a virtual connection is functionally equivalent to

Placing a modem prior to a conversation
None of these
Physically connecting a DTE and DCE
Placing a telephone call prior to a conversation
Connecting as virtual memory

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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?

HDLC
802.1
Frame Relay
PPP
PAP

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