The correct actions are to notify the appropriate authority and conduct a post-incident review to identify lessons learned. Notifying the authority is often a regulatory requirement, particularly when personal information is involved, as many data protection laws mandate timely disclosure to oversight bodies. The post-incident review is a best practice that ensures the organization captures root causes and improves future response capabilities. On the CISM exam, this question tests your understanding of the incident response lifecycle and the distinction between mandatory compliance steps and voluntary improvement processes. A common trap is confusing immediate containment actions, like preserving logs, with the notification and review phases that occur after the initial response. Remember the memory tip: “Notify and Review” — the two steps that look backward to regulators and forward to better security.
CISM Incident Management Practice Question
This CISM practice question tests your understanding of incident management. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization experiences a data breach involving personal information. Which TWO actions should be taken as part of incident response? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Notify the relevant data protection authority within the required timeframe.
Options B and D are correct. B is required by regulations; D is best practice. Option A is wrong; Option C is wrong because logs are needed for investigation; Option E is wrong because press release should be coordinated.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Immediately issue a press release without consulting legal.
Why it's wrong here
Option E is wrong because press release should be coordinated.
✓
Notify the relevant data protection authority within the required timeframe.
Why this is correct
Option B is correct as it is required by regulations.
Related concept
Static NAT maps one inside address to one outside address.
✗
Ignore the incident if no customers have complained.
Why it's wrong here
Option A is wrong.
✓
Conduct a post-incident review to identify lessons learned.
Why this is correct
Option D is correct as it is best practice.
Related concept
Static NAT maps one inside address to one outside address.
✗
Delete all system logs to prevent further exposure.
Why it's wrong here
Option C is wrong because logs are needed for investigation.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISM NAT questions on configuration and troubleshooting.
Incident Management — This question tests Incident Management — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Notify the relevant data protection authority within the required timeframe. — Options B and D are correct. B is required by regulations; D is best practice. Option A is wrong; Option C is wrong because logs are needed for investigation; Option E is wrong because press release should be coordinated.
What should I do if I get this CISM question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISM NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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