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Computer Networking

Computer Networking
Which of the following device is used to connect two systems, especially if the systems use different protocols?

bridge
repeater
hub
gateway
None of these

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Computer Networking
How many digits of the DNIC (Data Network Identification Code) identify the country?

None of these
first five
first three
first six
first four

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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
1, 2 and 3
3, 4, and 5

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Computer Networking
The EIA-232 interface has _____ pins.

25
None of these
20
24
30

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Computer Networking
Which of the following command options are displayed when you use the Router# show frame-relay ? command?1. dlci2. neighbors3. lmi4. pvc5. map

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

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Computer Networking
On a VLSM network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?

/30
/28
/29
/27

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