CompTIA JK0-022 Exam Dumps

Correct Answer: D

The HMAC-MD5-96 (also known as HMAC-MD5) encryption technique is used by IPSec to make sure that a message has not been altered.

Incorrect Answers:

A: Blowfish can be used with IPSec but not as often as HMAC.

B: Twofish, a variant of Blowfish, can be used with IPSec but not as often as HMAC.

C: RC4 is popular with wireless and WEP/WPA encryption. IPSec can use HMAC-MD5 for data integrity.

References:

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, Sixth Edition, Sybex, Indianapolis, 2014, pp 139, 250, 251, 255-256, 260

Correct Answer: C

Change Management is a risk mitigation approach and refers to the structured approach that is followed to secure a company's assets. In this case `performing updates to business critical systems.

Incorrect Answers:

A: Incident management is the steps followed when events occur (making sure controls are in place to prevent unauthorized access to, and changes of, all IT assets).

B: Server clustering is used to provide failover capabilities / redundancy in addition to scalability as demand increases.

D: Forensics refers to the process of identifying past events using a data trail and the analysis of evidence found in computers and on digital storage media.

References:

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, Sixth Edition, Sybex, Indianapolis, 2014, p 10

Correct Answer: A

Anytime you connect multiple computers to work/act together as a single server, it is known as clustering. Clustered systems utilize parallel processing (improving performance and availability) and add redundancy (but also add costs). Clustering is done whenever you connect multiple computers to work and act together as a single server. It is meant to utilize parallel processing and can also add to redundancy.

Incorrect Answers:

B: RAID, or redundant array of independent disks (RAID). RAID allows your existing servers to have more than one hard drive so that if the main hard drive fails, the system keeps functioning.

C: Backup redundancy is a disaster recovery measure.

D: A cold site is a facility that isn't immediately ready to use. The organization using it must bring along its equipment and network. A cold site may provide network capability, but this isn't usually the case; the site provides a place for

operations to resume, but it doesn't provide the infrastructure to support those operations. It is one of the disaster recovery measures.

References:

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, Sixth Edition, Sybex, Indianapolis, 2014, pp 234-235, 444