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
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Which of the following defines an array of C-strings that will hold 49 characters and the null terminator?
a. char [49]; b. char str[50]; c. char[50] str; d. character str[50]; e. None of these
The wildcard that substitutes for any combination of characters is the ________ wildcard
A) number sign B) brackets C) asterisk D) question mark
Computers are designed to respond to heuristic commands.
Answer the following statement true (T) or false (F)
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