Which message type supports functionality for reachability utilities like Ping and Tracert; essential when installing, configuring, and troubleshooting IP networks?

A. ICMP Echo/Echo Reply
B. ICMP Source Quench
C. ICMP Time Exceeded
D. ICMP Destination Unreachable


Answer: A

Computer Science & Information Technology

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Which of the following defines an array of C-strings that will hold 49 characters and the null terminator?

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The wildcard that substitutes for any combination of characters is the ________ wildcard

A) number sign B) brackets C) asterisk D) question mark

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Computers are designed to respond to heuristic commands.

Answer the following statement true (T) or false (F)

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Over time, smart phones have become _____.

a. more powerful but harder to use b. less expensive for a certain amount of computing power but easier to use c. smaller and harder to use d. larger and easier to use

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