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Risk Response and ReportingmediumMultiple ChoiceObjective-mapped

CRISC Risk Response and Reporting Practice Question

An organization is implementing a control to prevent unauthorized access to its critical database. The control must be designed to block access attempts in real time. Which type of control should be selected?

⚠ Common exam trap

Many exam-takers confuse detective controls (like monitoring or logging) with preventive controls, mistakenly thinking that detecting an attempt in real time is the same as blocking it, but detection does not stop the action from occurring.

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

Preventive control

A preventive control is designed to block unauthorized access attempts in real time before they reach the critical database. Technologies such as a database firewall or network access control list (ACL) evaluate each request against a policy and drop the packet or terminate the session immediately, preventing the access from occurring. This aligns with the requirement for real-time blocking, which is the defining characteristic of a preventive control.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Corrective control

    Why it's wrong here

    Corrective controls remediate issues after they occur.

  • Detective control

    Why it's wrong here

    Detective controls identify events after they have occurred, not in real time.

  • Preventive control

    Why this is correct

    Preventive controls block unauthorized access in real time.

  • Compensating control

    Why it's wrong here

    Compensating controls provide alternative control when primary control is not feasible.

Visual reference

Source Router + ACL permit 10.0.0.0/8 deny any Server 10.0.0.5 ✓ 192.168.1.1 ✗ dropped ACLs evaluate top-down; first match wins — implicit deny all at end

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This CRISC 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 CRISC exam.