A file is not readable by you. Which command could you run to quickly identify why?

A) pwd
B. ls -l
C. cp
D. less

B

Computer Science & Information Technology

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The easiest way to speed up download times for images is to:

a. Compress images. b. Use small images. c. Set image sizes in HTML. d. Increase image resolution.

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HTML5 supports video and audio ____ that allow users to play video and audio files without an external plug-in or player.

A. keys B. tags C. indices D. icons

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The ______________describes a set of data elements necessary to support biometric technologies in a common way.

A. PKI B MD5 B. SHA1 C. X.509 D. CBEFF

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The original PSK passphrase is mathematically manipulated (known as ____________________) 4,096 times before it is transmitted.

Fill in the blank(s) with the appropriate word(s).

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Computer Science & Information Technology