Proxy servers perform operations on ____-level data.

A. application
B. header
C. data link
D. transport

Answer: A

Computer Science & Information Technology

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A(n) ________ is a horizontal group of cells in a worksheet

Fill in the blank(s) with correct word

Computer Science & Information Technology

Digital signature can be used in conjecture with other technologies to provide non-repudiations

a. true b. false

Computer Science & Information Technology