When entering data into a table or form, the ________ key is a required field
Fill in the blank(s) with correct word
primary
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Steve, a graphics designer, uses a dual core system for work. He uses different types of photo editing software that have slowed down the processing speed of his computer. He believes rearranging data on the hard drive will help the computer work faster. Which of the following processes can help improve the computer's efficiency??
A. ?Optimization B. ?Virtualization C. ?Emulation D. ?Segmentation
int iscntrl(character) returns a nonzero number if the character is ____; otherwise, returns a zero.
A. uppercase B. lowercase C. a punctuation character D. a control character
To compare more than one set of values or trends over time, use a ________ chart
A) pie B) line C) column D) bar
Many firewalls block ICMP packers, so ping scans are often unsuccessful
Indicate whether the statement is true or false.