One task of the ____ layer in a LAN is to handle error detection using a CRC.

A. Network
B. Transport
C. Data Link
D. Physical


Answer: C

Computer Science & Information Technology

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All your status updates and personal information are displayed on your own ________ page

A) Home B) Timeline C) Toolbar D) Profile

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You would use ________ to monitor data input and display an appropriate message if a user enters erroneous data

A) data validation B) a data filter C) conditional formatting D) error checking

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Programmers around the world use Ruby to develop scripts that perform tasks that include ____.

A. Processing text files B. Network programming C. System administration D. All of the above

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The ____ technology trend may change the way users access software and data.

A. telecommuting B. cloud computing C. outsourcing D. ITIL library

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