Computer Networking
The Internet Control Message Protocol (ICMP)

None of these
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
allows gateways to send error a control messages to other gateways or hosts
All of these
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem

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Computer Networking
Network 206.143.5.0 was assigned to the Acme Company to connect to its ISP. The administrator of Acme would like to configure one router with the commands to access the Internet. Which commands could be configured on the Gateway router to allow Internet access to the entire network?1. Gateway (config) # ip route 0.0.0.0 0.0.0.0 206.143.5.22. Gateway (config) # router rip3. Gateway (config-router) # network 206.143.5.04. Gateway (config-router) # network 206.143.5.0 default

1 and 4
1 only
3 only
1, 2 and 4

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Computer Networking
TCP is:

None of these
Connection orientated and reliable
Connectionless and unreliable
Connection orientated and unreliable
Operates at the Data Link layer

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Computer Networking
Why does the data communication industry use the layered OSI reference model?1. It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.2. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.3. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers.4. It encourages industry standardization by defining what functions occur at each layer of the model.

2 and 3
1 and 4
3 only
1 only

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