SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating an on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB in size and the company has a 1 Gbps AWS Direct Connect connection. They need to minimize downtime. Which approach should the solutions architect recommend?
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
✓
Use AWS DMS with full load followed by ongoing replication using change data capture (CDC)
AWS Database Migration Service (DMS) with change data capture (CDC) allows continuous replication and minimal downtime. Export/import would cause downtime. AWS Schema Conversion Tool (SCT) is for schema conversion, not data migration. Snowball is for offline data transfer and would delay the process.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Export the database using Oracle Data Pump and import into RDS
Why it's wrong here
Incorrect: Export/import requires application downtime during the process.
- ✗
Use AWS Snowball Edge to transfer the database files and then restore to RDS
Why it's wrong here
Incorrect: Snowball introduces delays due to shipping and manual processes.
- ✗
Use AWS Schema Conversion Tool to convert the schema and AWS DMS for data migration without CDC
Why it's wrong here
Incorrect: SCT is for schema conversion, and without CDC, downtime is longer.
- ✓
Use AWS DMS with full load followed by ongoing replication using change data capture (CDC)
Why this is correct
Correct: DMS with CDC minimizes downtime by replicating changes continuously.
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Same concept, more angles
6 more ways this is tested on SAP-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is planning to migrate a Microsoft SQL Server database to Amazon RDS for SQL Server. They want to automate the migration process and minimize manual effort. Which AWS service should they use?
easy- A.AWS CloudEndure Migration
- B.AWS DataSync
- ✓ C.AWS Database Migration Service (DMS)
- D.AWS Schema Conversion Tool (SCT)
Why C: AWS DMS can migrate SQL Server to RDS with minimal downtime. Option A is wrong because CloudEndure Migration is for server migration. Option B is wrong because DataSync is for file data. Option D is wrong because Schema Conversion Tool is for schema conversion.
Variation 2. A company is migrating an on-premises Microsoft SQL Server database to Amazon RDS for SQL Server. They need to minimize downtime and ensure data consistency. Which AWS service should they use for the migration?
medium- A.AWS DataSync
- B.AWS Schema Conversion Tool (SCT)
- ✓ C.AWS Database Migration Service (DMS)
- D.AWS Glue
Why C: (AWS DMS) is correct because it supports homogeneous migrations with minimal downtime using continuous replication. Option A (DataSync) is for file-based data. Option B (SCT) only provides schema conversion. Option D (Glue) is for ETL jobs.
Variation 3. A company wants to migrate its on-premises Oracle database to Amazon RDS for MySQL with minimal downtime. Which AWS service should be used for the initial data load and ongoing replication?
easy- A.AWS Schema Conversion Tool (SCT)
- B.Amazon S3
- C.AWS Direct Connect
- ✓ D.AWS Database Migration Service (DMS)
Why D: AWS Database Migration Service (DMS) supports both initial data load and ongoing replication from on-premises Oracle to Amazon RDS for MySQL with minimal downtime. Option A (AWS SCT) is used for schema conversion, not data migration. Option B (Amazon S3) is a storage service, not a migration service. Option C (AWS Direct Connect) provides network connectivity but does not perform data migration.
Variation 4. A company is planning to migrate its on-premises Oracle database to Amazon RDS for Oracle. The database is 2 TB in size and the company has a high-speed network connection to AWS. Which AWS service should the company use to migrate the database with minimal downtime?
easy- A.Amazon S3 Transfer Acceleration
- ✓ B.AWS Database Migration Service (DMS)
- C.AWS Snowball Edge
- D.AWS Schema Conversion Tool (SCT)
Why B: AWS DMS supports Oracle to RDS for Oracle migration with ongoing replication for minimal downtime. Option A is incorrect because S3 Transfer Acceleration is used for accelerating uploads to S3, not for database migration. Option C is incorrect because Snowball Edge is for offline data transfer and not suitable for databases with minimal downtime. Option D is incorrect because AWS Schema Conversion Tool (SCT) is used for schema conversion, not data migration.
Variation 5. A company is planning to migrate its on-premises Oracle database to Amazon RDS for Oracle. Which actions should the company take to minimize downtime during the migration? (Choose TWO.)
easy- A.Take a full backup of the on-premises database and restore it to RDS during a maintenance window.
- B.Use AWS Direct Connect to establish a dedicated network connection for faster data transfer.
- C.Increase the allocated storage on the target RDS instance to improve write performance.
- ✓ D.Use AWS Schema Conversion Tool (SCT) to convert the schema and optimize for RDS.
- ✓ E.Use AWS Database Migration Service (DMS) with ongoing replication to keep the target in sync.
Why D: Options D and E are correct. AWS Schema Conversion Tool (SCT) converts the schema to be compatible with Amazon RDS for Oracle, reducing compatibility issues. AWS Database Migration Service (DMS) with ongoing replication allows continuous sync from the source to target, minimizing downtime during migration. Option A (full backup and restore) requires downtime during the restore. Option B (Direct Connect) improves transfer speed but does not directly minimize downtime; it's a network enhancement. Option C (increased storage) improves write performance but does not minimize migration downtime.
Variation 6. A company is planning to migrate its on-premises Oracle database to Amazon RDS for Oracle using AWS DMS. The database is 5 TB in size with continuous changes. Which TWO steps should the company take to minimize downtime during the migration?
medium- ✓ A.Set up ongoing replication using change data capture (CDC) from the start.
- B.Enable Multi-AZ on the target RDS instance during migration.
- C.Use AWS Direct Connect to establish a dedicated network connection.
- ✓ D.Use a large DMS replication instance to improve throughput.
- E.Perform a full load migration first, then apply CDC after the cutover window.
Why A: Setting up ongoing replication using change data capture (CDC) from the start allows continuous synchronization of changes, minimizing the final cutover downtime. Option D is correct because using a large DMS replication instance improves throughput and speeds up the data transfer, reducing the overall migration time. Option B is incorrect because Multi-AZ is a high-availability feature for the target RDS instance, not a factor in migration speed or downtime reduction. Option C is incorrect because while AWS Direct Connect can provide a reliable network connection, it is not a specific step to minimize downtime during migration; the primary focus should be on replication strategy and instance size. Option E is incorrect because performing a full load first and then applying CDC after the cutover window would result in a longer downtime compared to having CDC running from the start.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 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 SAP-C02 exam.