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Which of the following devices is used for the transpar…

Which of the following devices is used for the transparent security inspection of network traffic by redirecting
user packets prior to sending the packets to the intended destination?

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A.
Proxies

B.
Load balancers

C.
Protocol analyzer

D.
VPN concentrator

Explanation:
A proxy is a device that acts on behalf of other(s). A commonly used proxy in computer networks is a web
proxy. Web proxy functionality is often combined into a proxy firewall.
A proxy firewall can be thought of as an intermediary between your network and any other network. Proxy
firewalls are used to process requests from an outside network; the proxy firewall examines the data and
makes rule-based decisions about whether the request should be forwarded or refused. The proxy intercepts all
of the packets and reprocesses them for use internally. This process includes hiding IP addresses.
The proxy firewall provides better security than packet filtering because of the increased intelligence that a
proxy firewall offers. Requests from internal network users are routed through the proxy. The proxy, in turn,
repackages the request and sends it along, thereby isolating the user from the external network. The proxy can
also offer caching, should the same request be made again, and it can increase the efficiency of data delivery.

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