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DBS-C01 Management and Operations Practice Question

A company is migrating its on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB in size and has a 24-hour maintenance window. The company needs to minimize downtime during the migration. Which AWS service should be used to perform the migration with minimal downtime?

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 Database Migration Service (AWS DMS) can migrate the on-premises Oracle database to Amazon RDS for Oracle with minimal downtime by using ongoing replication. Option B (Oracle Data Guard) is not supported for cross-environment replication to Amazon RDS. Option C (AWS Schema Conversion Tool) is used for schema conversion, not data migration. Option D (AWS Data Pipeline) is a data orchestration service unrelated to database migration.

Answer analysis

Option-by-option breakdown

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

  • ✓

    AWS Database Migration Service

    Why this is correct

    This is the same as Option D and refers to AWS Database Migration Service, which is designed for minimal downtime migrations.

  • ✗

    Oracle Data Guard

    Why it's wrong here

    Oracle Data Guard is not supported by Amazon RDS for Oracle for on-premises to RDS replication.

  • ✗

    AWS Schema Conversion Tool (AWS SCT)

    Why it's wrong here

    AWS Schema Conversion Tool handles schema conversion, not the actual data migration.

  • ✗

    AWS Data Pipeline

    Why it's wrong here

    This is the same as Option A and is the correct service for minimizing downtime during migration.

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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.