DBS-C01 Deployment and Migration Practice Question
Network Topology
An administrator runs the CLI command shown in the exhibit and sees the output. The DB instance 'mydb' is currently running MySQL 5.7.22. What does the output indicate?
⚠ Common exam trap
Test-takers frequently confuse 'Pending maintenance' with a failed modification or a password change, but RDS clearly separates pending maintenance actions (like version upgrades) from immediate modifications (like password changes) in the CLI output.
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
✓
The DB instance has a pending minor version upgrade to 5.7.23
The output shows 'Pending maintenance: Yes' with 'Minor version upgrade to 5.7.23' listed. This indicates that the DB instance has a pending minor version upgrade that will be applied during the next maintenance window. The CLI command 'aws rds describe-db-instances --db-instance-identifier mydb' returns this information when a minor version upgrade is scheduled but not yet applied.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The master user password has been changed
Why it's wrong here
The password is shown as pending, but the question is about the version.
- ✗
The DB instance has failed to apply modifications
Why it's wrong here
PendingModifiedValues indicates pending changes, not failure.
- ✗
The DB instance is using a custom DB parameter group
Why it's wrong here
The parameter group is default.mysql5.7, not custom.
- ✓
The DB instance has a pending minor version upgrade to 5.7.23
Why this is correct
The EngineVersion in PendingModifiedValues indicates a pending upgrade.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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