QUESTION: 29

Which Intrusion Detection System is best applicable for large environments where critical assets on the network need extra scrutiny and is ideal for observing sensitive network segments?

Honeypots
Firewalls
Network-based intrusion detection system (NIDS)
Host-based intrusion detection system (HIDS)

Answer(s): C

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QUESTION: 30

The collection of potentially actionable, overt, and publicly available information is known as

Open-source intelligence
Real intelligence
Social intelligence
Human intelligence

Answer(s): A

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QUESTION: 31

What is one of the advantages of using both symmetric and asymmetric cryptography in SSL/TLS?

Supporting both types of algorithms allows less-powerful devices such as mobile phones to use symmetric encryption instead.
Symmetric algorithms such as AES provide a failsafe when asymmetric methods fail.
Symmetric encryption allows the server to security transmit the session keys out-of-band.
Asymmetric cryptography is computationally expensive in comparison. However, it is well-suited to securely negotiate keys for use with symmetric cryptography.

Answer(s): A

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The change of a hard drive failure is once every three years. The cost to buy a new hard drive is $300. It will require 10 hours to restore the OS and software to the new hard disk. It will require a further 4 hours to restore the database from the last backup to the new hard disk. The recovery person earns $10/hour. Calculate the SLE, ARO, and ALE. Assume the EF = 1(100%). What is the closest approximate cost of this replacement and recovery operation per year?

$1320
$440
$100
$146

Answer(s): D

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