If the same key is used to both encrypt and decrypt a file, that is an example of what is referred to as a(n)

A. virtual private network
B. symmetric encryption system
C. public key infrastructure
D. asymmetric encryption system

Answer: B. symmetric encryption system

Business

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The David Chen case is famous as it resulted in a change in the law relating to

A) employer's liability for workers actions B) a citizen's arrest within a reasonable amount of time after a crime was committed C) a store's liability for false imprisonment when it mistakenly held the wrong person D) a reporter's right to make critical comments E) an employer's right to search employees it thinks have stolen goods

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