The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to

Computer Networking
The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to

None of these

0.999

0.991

0.009

0.003

None of these

0.999

0.991

0.009

0.003

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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?

Telesoftware

None of these

Videotex

Teletext

Viewdata

Telesoftware

None of these

Videotex

Teletext

Viewdata

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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

HDLC

PPP

PAP

Frame Relay

802.1

HDLC

PPP

PAP

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Computer Networking
A required characteristic of an online real-time system is:

no delay in processing

more than one CPU

All of these

None of these

offline batch processing

no delay in processing

more than one CPU

All of these

None of these

offline batch processing

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Computer Networking
Terminals are used to

collect data from the physical system

provide information for the manager

All of these

None of these

communicate management decisions to the physical system

collect data from the physical system

provide information for the manager

All of these

None of these

communicate management decisions to the physical system

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Computer Networking
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?

255.240.0.0

255.248.0.0

255.255.255.255

255.252.0.0

255.254.0.0

255.240.0.0

255.248.0.0

255.255.255.255

255.252.0.0

255.254.0.0

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Computer Networking

Computer Networking The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to

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?

Computer Networking A required characteristic of an online real-time system is:

Computer Networking Terminals are used to

Computer Networking 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?

Computer Networking
The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to

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?

Computer Networking
A required characteristic of an online real-time system is:

Computer Networking
Terminals are used to

Computer Networking
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?