DBS-C01 Management and Operations Practice Question
A company is migrating a large on-premises Oracle database to Amazon RDS for Oracle. The database is 5 TB in size, and the migration must be completed within a week. The company has a dedicated 10 Gbps AWS Direct Connect connection. Which TWO AWS services should the company use to minimize downtime during the 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 Schema Conversion Tool (AWS SCT)
AWS DMS can handle ongoing replication to minimize downtime. AWS SCT can convert the schema if needed, and AWS DMS can migrate data. AWS Snowball is for offline data transfer, which may not be needed with Direct Connect. RDS is the target, not a migration service. AWS DataSync is for file data, not databases. The correct options are A and D.
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 Schema Conversion Tool (AWS SCT)
Why this is correct
SCT can convert the Oracle schema to Amazon RDS for Oracle compatible schema, if needed.
- ✗
AWS DataSync
Why it's wrong here
DataSync is for file-based data, not database migrations.
- ✗
AWS Snowball
Why it's wrong here
Snowball is for offline data transfer, which is not necessary given the Direct Connect connection and may not meet the one-week timeline.
- ✓
AWS Database Migration Service (AWS DMS)
Why this is correct
DMS can perform the initial load and ongoing replication to minimize downtime.
- ✗
Amazon RDS for Oracle
Why it's wrong here
RDS is the target, not a migration service.
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