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A circuit level proxy is ____________ when compared to …

A circuit level proxy is ____________ when compared to an application level proxy.

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A.
lower in processing overhead.

B.
more difficult to maintain.

C.
more secure.

D.
slower.

Explanation:
A circuit level proxy works at the session layer of the OSI model and monitors traffic from a network-based
view. This type of proxy cannot “look into” the contents of a packet like an application level proxy; thus, it does
not carry out deep-packet inspection. This means that, compared to an application level proxy, A circuit level
proxy is faster.
Incorrect Answers:
B: A circuit level proxy is easier to maintain as it is less flexible.
C: A circuit level proxy is less secure since it only works at the session layer, and cannot inspect data packets.
D: A circuit level proxy is faster, not slower.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 636


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