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Question 1005 - CISA discussion

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An organization plans to replace its nightly batch processing backup to magnetic tape with real-time replication to a second data center. Which of the following is the GREATEST risk associated with this change?

A.
Version control issues
Answers
A.
Version control issues
B.
Reduced system performance
Answers
B.
Reduced system performance
C.
Inability to recover from cybersecurity attacks
Answers
C.
Inability to recover from cybersecurity attacks
D.
Increase in IT investment cost
Answers
D.
Increase in IT investment cost
Suggested answer: C

Explanation:

Real-time replication to a second data center means that any changes made to the primary data center are immediately copied to the secondary data center. This can improve data availability and performance, but also introduces the risk of propagating malicious or erroneous changes to the backup data center. If a cybersecurity attack compromises the primary data center, it may also affect the secondary data center, making it difficult or impossible to recover from the attack using the replicated data. Therefore, option C is the greatest risk associated with this change.

Option A is not correct because version control issues are more likely to occur with batch processing backup, which may create inconsistencies between different versions of the data. Option B is not correct because real-time replication may reduce system performance at the primary data center, but it may also improve system performance at the secondary data center by reducing latency and network traffic. Option D is not correct because although real-time replication may increase IT investment cost, this is not a risk but a trade-off that the organization has to consider.

Data Replication: The Basics, Risks, and Best Practices1

Best Practices for Data Replication Between Data Centers2

The Good, Bad, and Ugly of Data Replication3

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asked 18/09/2024
Yan Wei
35 questions
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