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    Exam 4: E-Commerce Security and Payment Systems
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    A ________ Is Hardware or Software That Acts as a Filter
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A ________ Is Hardware or Software That Acts as a Filter

Question 9

Question 9

Multiple Choice

A ________ is hardware or software that acts as a filter to prevent unwanted packets from entering a network.


A) firewall
B) virtual private network
C) proxy server
D) PPTP

Correct Answer:

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