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Computer Networking

Computer Networking
What is the first octet range for a class A IP address?

192 - 255
1 - 126
192 - 223
128 - 191
1 - 127

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Computer Networking
Which protocol is used to send a destination network unknown message back to originating hosts?

ARP
BootP
TCP
ICMP

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Computer Networking
The OCR reading unit attached to a POS terminal is called a

cursor
wand
All of these
light pen
None of these

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Computer Networking
Which of the following is considered a broadband communications channel?

satellites systems
microwave circuits
All of these
fiber optic cable
coaxial cable

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

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

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Computer Networking
You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 12 hosts and a maximum number of subnets?

255.255.255.224
255.255.255.248
255.255.255. 240
255.255.255.252
255.255.255.192

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