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Computer Networking

Computer Networking
What is the subnetwork number of a host with an IP address of 172.16.66.0/21?

172.16.36.0
172.16.64.0
172.16.48.0
172.16.0.0

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Computer Networking
Error control is needed at the transport layer because of potential errors occurring _____.

from packet losses.
in routers
from out-of-sequence delivery
from transmission line noise

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Computer Networking
Select the cable that uses copper conductor, accept and transport signals in the form of electric current?

Fiber-optic cable
Metallic cable
Twisted pair cable
All of these

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Computer Networking
What does 192 translate to in binary?

11
111110
11000000
1111
None of these

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Computer Networking
Which three commands can be used to check LAN connectivity problems on a router?1. show interfaces2. show ip route3. tracert4. ping5. dns lookups

1 ,2 and 4
None of these
3 and 5
2 and 5

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Computer Networking
Which switching technology reduces the size of a broadcast domain?

STP
VLANs
ISL
802.1Q

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