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Continuous Improvement for Existing Solutions →easyMultiple ChoiceObjective-mapped

SAP-C02 Continuous Improvement for Existing Solutions Practice Question

A company is using Amazon RDS for MySQL and wants to minimize downtime during a major version upgrade. Which approach is the MOST effective?

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

✓

Create a read replica with the new version, promote it to primary, and update the application endpoint.

Creating a read replica, upgrading it, and then promoting it to primary minimizes downtime because the promotion is a quick operation.

Answer analysis

Option-by-option breakdown

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

  • ✗

    Take a snapshot, restore as a new instance with the new version, and update the application endpoint.

    Why it's wrong here

    This approach has significant downtime while restoring and updating endpoints.

  • ✓

    Create a read replica with the new version, promote it to primary, and update the application endpoint.

    Why this is correct

    This approach minimizes downtime as the promotion is fast.

  • ✗

    Launch a new RDS instance with the new version, use DMS to migrate data, and switch the application endpoint.

    Why it's wrong here

    DMS migration takes time and may require schema changes, causing longer downtime.

  • ✗

    Use the AWS RDS modify-db-instance command with the --allow-major-version-upgrade option. This typically causes a few minutes of downtime but is the simplest.

    Why it's wrong here

    While simple, this approach causes downtime during the upgrade.

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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.