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Reliability and Business Continuity →mediumMultiple ChoiceObjective-mapped

Quick Answer

The answer is DynamoDB global tables, which provide multi-Region, fully replicated tables that automatically propagate writes to all configured Regions, enabling the table to survive a regional outage with minimal data loss. This feature uses DynamoDB Streams to asynchronously replicate data across Regions, typically achieving a recovery point objective (RPO) of under one second, making it the ideal choice for regional disaster recovery. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your understanding of high-availability patterns versus backup strategies—a common trap is confusing global tables with point-in-time recovery (PITR), which only protects against accidental writes, not regional outages. Remember that global tables maintain active copies in multiple Regions, while PITR restores to a single Region. Memory tip: think “global for regional, PITR for accidental.”

SOA-C02 Reliability and Business Continuity Practice Question

This SOA-C02 practice question tests your understanding of reliability and business continuity. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

A company has an Amazon DynamoDB table with on-demand capacity mode. The SysOps administrator needs to ensure that the table can survive a regional outage. The table is currently in us-east-1. Which feature should be configured to achieve regional resilience with minimal data loss?

Question 1mediummultiple choice
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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

✓

DynamoDB global tables

DynamoDB global tables provide multi-Region, fully replicated tables that automatically propagate writes to all configured Regions, enabling the table to survive a regional outage with minimal data loss. This feature uses DynamoDB Streams to replicate data asynchronously across Regions, offering recovery point objectives (RPO) of typically under one second. For the requirement of regional resilience, global tables are the correct choice because they maintain active copies in multiple AWS Regions.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

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

  • ✗

    DynamoDB Accelerator (DAX)

    Why it's wrong here

    DAX is an in-memory cache that improves read performance but does not replicate data to other Regions. It does not provide disaster recovery.

  • ✓

    DynamoDB global tables

    Why this is correct

    Global tables replicate data across Regions automatically, allowing the table to remain available during a regional outage with minimal data loss (eventual consistency).

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    DynamoDB point-in-time recovery

    Why it's wrong here

    Point-in-time recovery allows restoring the table to any point within the last 35 days within the same Region, but it does not provide automatic failover to another Region.

  • ✗

    DynamoDB auto scaling

    Why it's wrong here

    Auto scaling adjusts provisioned capacity based on traffic, but it does not replicate data across Regions. It is not a disaster recovery feature.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse point-in-time recovery (PITR) with cross-Region disaster recovery, not realizing that PITR only protects against accidental deletes or corruption within a single Region, not a full regional outage.

Detailed technical explanation

How to think about this question

DynamoDB global tables use a last-writer-wins (LWW) conflict resolution mechanism based on the timestamp in each item's update, ensuring eventual consistency across Regions. The replication latency is typically sub-second under normal conditions, but can increase during high write loads or network issues, making it suitable for active-active architectures. In a real-world scenario, if us-east-1 becomes unavailable, applications can fail over to another Region (e.g., us-west-2) and continue reading and writing to the local replica with no data loss beyond the last replicated write.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this SOA-C02 question test?

Reliability and Business Continuity — This question tests Reliability and Business Continuity — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: DynamoDB global tables — DynamoDB global tables provide multi-Region, fully replicated tables that automatically propagate writes to all configured Regions, enabling the table to survive a regional outage with minimal data loss. This feature uses DynamoDB Streams to replicate data asynchronously across Regions, offering recovery point objectives (RPO) of typically under one second. For the requirement of regional resilience, global tables are the correct choice because they maintain active copies in multiple AWS Regions.

What should I do if I get this SOA-C02 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 2026

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This SOA-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 SOA-C02 exam.