CISM Incident Management Practice Question
During a DDoS attack, the incident response team determines that the attack cannot be mitigated within the maximum tolerable downtime (MTD). What should happen next?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Activate business continuity and disaster recovery plans
When an incident cannot be resolved within MTD, the organization should escalate to business continuity and disaster recovery activation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Notify the board of directors
Why it's wrong here
Notification is important but not the next operational step.
- ✗
Continue current mitigation efforts
Why it's wrong here
If MTD is exceeded, BC/DR should be activated.
- ✓
Activate business continuity and disaster recovery plans
Why this is correct
Transition to BC/DR to ensure continuity.
- ✗
Declare a disaster immediately
Why it's wrong here
The decision authority must declare a disaster; activation of BC/DR is the step.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISM practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CISM exam.