Which of the following commands can Lisa, a network technician, use to check whether the DNS server for a given domain is reachable?

A. nmap
B. nbtstat
C. dig
D. arp


Answer: C. dig

Computer Science & Information Technology

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Which of the following statements is false?

a. Lists and tuples are built-in sequence collections. b. Dictionaries, strings and sets are built-in non-sequence collections. c. A dictionary is an unordered collection which stores key–value pairs that map immutable keys to values, just as a conventional dictionary maps words to definitions. d. A set is an unordered collection of unique immutable elements.

Computer Science & Information Technology

Contrast is the difference between the darkest and lightest areas of an image.

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

Computer Science & Information Technology

Rewrite the Program so that you normalize the first second of a sound, then slowly decrease the sound in steps of 1=5 for each following second. (How many samples are in a second? getSamplingRate() is the number of samples per second for the given sound.)

What will be an ideal response?

Computer Science & Information Technology

You can use ________ names in formulas instead of cell references

Fill in the blank(s) with correct word

Computer Science & Information Technology