A server in a LAN was configured to act as a gateway between all company computers and an external network. Which of the following networking devices offers the ability to increase both performance and security?
Proxy server is the most correct answer. In addition to providing web filtering, proxy servers can also cache web sites for network users for faster access. These two features together meet the performance and security requirements of the scenario.
Load balancer is incorrect; while it will help optimize network performance at large, it does not explicitly provide any security features.
Intrusion Detection System is incorrect; while a prolific security feature, an IDS will not proactively defend a network, and may instead congest traffic.
Wireless controller is incorrect; wireless controllers are used to maintain and manage multiple wireless access points. As it is more of a management tool, it does not explicitly provide increased network performance or added security.
I agree with Takoyaki, the correct answer is C. Proxy server.
It increases both performance (it caches web sites for network users for faster access.) and security
(web filtering).
Is it really though? I think the key word is "gateway" here which is what a proxy server does, at least to my understanding - devices can "hide" behind it and it answers the question based on what it's asking...Load balances increases performance but doesn't offer security, an IDS doesn't help because it simply detects and doesn't prevent and doesn't increase performance...and a wireless controller does nothing in this situation. So narrowing it down to a proxy server does make it the most plausible answer.
upvoted 8 times
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Takoyaki
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