DEA-C01 Data Store Management Practice Question
Which TWO of the following are features of Amazon RDS Multi-AZ deployments? (Choose 2.)
⚠ Common exam trap
The DEA-C01 exam often tests the distinction between Multi-AZ (high availability with a passive standby) and read replicas (scaling reads with active replicas), leading candidates to incorrectly associate read offloading with Multi-AZ deployments.
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
✓
Automatic failover to a standby instance in case of an AZ failure.
Amazon RDS Multi-AZ deployments automatically handle failover to a standby instance in a different Availability Zone when the primary instance fails or the AZ becomes unavailable. This synchronous replication ensures zero data loss and minimal downtime, with the standby instance automatically promoted to primary without manual intervention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Read replicas in the same region for offloading read traffic.
Why it's wrong here
Read replicas are a separate feature from Multi-AZ.
- ✓
Automatic failover to a standby instance in case of an AZ failure.
Why this is correct
Multi-AZ automatically fails over to the standby in another AZ.
- ✓
A standby instance that is not accessible for reads or writes.
Why this is correct
The standby is passive and only used for failover.
- ✗
Automatic storage scaling based on usage.
Why it's wrong here
Storage scaling is separate, not part of Multi-AZ.
- ✗
Synchronous replication across AWS Regions.
Why it's wrong here
Multi-AZ replicates within a single region, not cross-region.
Go deeper
Related to this question
About these practice questions
This DEA-C01 question is part of Courseiva's 1,711-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-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 DEA-C01 exam.