The expression $test = substr_replace($test, 'X', -1); replaces:

a. The last character in $test
b. The second character in $test
c. The first character in $test
d. The entire $test string


a. The last character in $test

Computer Science & Information Technology

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____ adjustments include special effects or blends.

a. Blended b. Style c. Tonal d. Effect

Computer Science & Information Technology

The command [Alt-l] converts the word following the cursor to:

a: upper case b: lower case c: capitalized d: bold e: none of the above

Computer Science & Information Technology

The term ____ describes the condition that occurs when dynamically allocated memory isn’t returned explicitly by using the delete operator and the operating system doesn’t reclaim allocated memory.

a. stack leak b. heap leak c. garbage collection d. memory leak

Computer Science & Information Technology

Derek is planning a camping trip and wants to be able to listen to music at the campsite. Derek currently has a smartphone but does not like the sound coming from the speakers.   What will help Derek improve the sound coming from his smartphone’s speakers while he is at the campsite?

A. Connect to a Bluetooth speaker. B. Tether to his laptop. C. Create a hot spot. D. Use his smartphone speakers; this is the only way Derek can listen to music on his smartphone.

Computer Science & Information Technology