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Computer Networking

Computer Networking
What is the standard protocol for network management features?

FTP
SMS
SNMP
SNA
None of these

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Computer Networking
What information is displayed by the show hosts command?1. Temporary DNS entries2. The names of the routers created using the hostname command3. The IP addresses of workstations allowed to access the router4. Permanent name-to-address mappings created using the ip host command5. The length of time a host has been connected to the router via Telnet

All of these
1 and 4
3, 4, and 5
1, 2 and 3

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Computer Networking
To test the IP stack on your local host, which IP address would you ping?

127.0.0.0
127.0.0.255
1.0.0.127
127.0.0.1

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Computer Networking
If your router is facilitating a CSU/DSU, which of the following commands do you need to use to provide the router with a 64000bps serial link?

RouterA (config-if) #clock rate 64000
RouterA (config-if) #bandwidth 64000
RouterA (config-if) #clock rate 64
RouterA (config) #bandwidth 64

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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
0.003
0.009
0.999
0.991

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Computer Networking
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?

None of these
Modem
Attenuation
Interface
Teleprocessor

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