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ISC2 CC Business Continuity, DR & Incident Response Practice Question

Exhibit

ERROR 2023-10-16 03:00:00 Replication failed: checksum mismatch on table 'orders' between primary (hash: a1b2c3) and standby (hash: d4e5f6)
WARN 2023-10-16 03:00:01 Automatic recovery initiated
ERROR 2023-10-16 03:15:00 Replication failed: checksum mismatch again

Refer to the exhibit. A DBA is investigating a replication issue. What should be the FIRST action?

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

✓

Verify data integrity on primary

Checksum mismatch indicates data corruption on one side. The first step is to verify data integrity on the primary to determine which copy is correct.

Answer analysis

Option-by-option breakdown

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

  • ✗

    Restore table from backup

    Why it's wrong here

    Restoring from backup is a last resort after verifying integrity.

  • ✓

    Verify data integrity on primary

    Why this is correct

    Check primary data to ensure it is not corrupted before taking further action.

  • ✗

    Reseed replication

    Why it's wrong here

    Reseeding may be needed, but first determine the source of corruption.

  • ✗

    Fail over to standby

    Why it's wrong here

    Failing over without knowing which copy is correct could propagate corruption.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This CC practice question is part of Courseiva's free ISC2 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 CC exam.