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Which of the following is MOST likely blocking Pete’s a…

Pete, an employee, attempts to visit a popular social networking site but it is blocked. Instead, a page is
displayed notifying him that this site cannot be visited.
Which of the following is MOST likely blocking Pete’s access to this site?

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A.
Internet content filter

B.
Firewall

C.
Proxy server

D.
Protocol analyzer

Explanation:
Web filtering software is designed to restrict or control the content a reader is authorized to access, especially
when utilized to restrict material delivered over the Internet via the Web, e-mail, or other means.
Incorrect Answers:
B: The basic purpose of a firewall is to isolate one network from another.
C: A proxy server is a variation of an application firewall or circuit-level firewall, and used as a middleman
between clients and servers. Often a proxy serves as a barrier against external threats to internal clients.
D: The terms protocol analyzer and packet sniffer are interchangeable. They refer to the tools used in the
process of monitoring the data that is transmitted across a network.

http://en.wikipedia.org/wiki/Content-control_software
Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis, 2014,
pp. 11, 96, 342

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