DBS-C01 Monitoring and Troubleshooting Practice Question
A company is migrating an on-premises Oracle database to Amazon RDS for Oracle. The database uses Oracle Data Guard for disaster recovery. Which AWS service should be used to monitor the replication lag between the source and target databases during migration?
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
✓
AWS Database Migration Service (AWS DMS)
AWS DMS provides metrics for replication lag. Option A is wrong because Performance Insights does not monitor replication lag. Option C is wrong because CloudWatch can monitor DMS metrics but is not specific to Data Guard. Option D is wrong because CloudTrail does not monitor replication lag.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon RDS Performance Insights
Why it's wrong here
Performance Insights does not monitor replication lag.
- ✓
AWS Database Migration Service (AWS DMS)
Why this is correct
AWS DMS provides metrics for replication lag.
- ✗
Amazon CloudWatch
Why it's wrong here
CloudWatch can monitor DMS metrics but is not specific to Data Guard.
- ✗
AWS CloudTrail
Why it's wrong here
CloudTrail does not monitor replication lag.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-C01 practice question is part of Courseiva's free Amazon Web Services 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 DBS-C01 exam.