Which of the following has a maximum transfer rate of 54Mbps and operates at the 5GHz frequency?

A. 802.11a
B. 802.11b
C. 802.11g
D. 802.11

Answer: A. 802.11a

Computer Science & Information Technology

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How many different Microsoft Windows file types can be infected with a virus?

A. 50 B. 60 C. 70 D. 80

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What can the phrase "Please Excuse My Dear Aunt Sally" help you remember?

A. The various printing options available in Excel B. Naming convention for cell ranges C. How to do date calculations D. Order of operations

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____ an image is a basic task in which you define an area of an image that you want to keep and then discard the remainder of the image.

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