PAS-C01 Technology Practice Question
A company is migrating its on-premises SAP landscape to AWS. The SAP system uses Oracle Database. The migration must minimize downtime. Which AWS service should be used for the database migration?
⚠ Common exam trap
Many candidates confuse AWS DMS with general-purpose migration tools like CloudEndure or Snowball, not realizing that DMS is the only service purpose-built for live database migrations with minimal downtime via CDC.
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 (DMS)
AWS Database Migration Service (DMS) is the correct choice because it supports ongoing replication from Oracle to a target database (e.g., Amazon RDS for Oracle or Amazon Aurora) with minimal downtime. DMS can perform a full load followed by continuous change data capture (CDC) using Oracle LogMiner or binary reader to keep the source and target synchronized until cutover.
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 Snowball Edge
Why it's wrong here
Snowball Edge lacks the continuous replication and real-time change data capture capabilities required for a live Oracle-to-AWS migration with minimal downtime. It is tempting because it can transfer large on-premises datasets offline, avoiding bandwidth constraints, and would be correct for a one-time bulk data load where application downtime is acceptable.
- ✓
AWS Database Migration Service (DMS)
Why this is correct
AWS DMS supports ongoing replication to minimize downtime during migration.
- ✗
AWS CloudEndure Migration
Why it's wrong here
CloudEndure is for server migration, not optimized for database replication.
- ✗
Amazon S3 Transfer Acceleration
Why it's wrong here
S3 Transfer Acceleration speeds up uploads to S3, not database migration.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-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 PAS-C01 exam.