AnswersCareer Explorations IIThe TCP/IP Networking Model

The TCP/IP Networking Model Answers

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1
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Which of the following defines a protocol?

A
rules for organizing data sent through a communications network
B
nodes used to ensure that messages are sent and received at their proper places
C
systems used to control access to a network
D
rules that check the reliability of data within a network
2
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Which of the following protocols allows seemingly ill-matched computers to communicate with one another?

A
HTTP
B
FTP
C
ARP
D
TCP/IP
4

If a packet gets “sucked down a black hole” (figuratively speaking) and is not received by its sender, and no message is sent back explaining the situation, then something is wrong. The failure to send a message means something is wrong with the _____.

A
TCP/IP
B
ICMP
C
ISO
D
HTTP

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