← SOA-C02·Amazon Web Services

Question 696 of 1,546

Reliability and Business Continuity →mediumMultiple ChoiceObjective-mapped

SOA-C02 Reliability and Business Continuity Practice Question

This SOA-C02 practice question tests your understanding of reliability and business continuity. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 runs a global e-commerce application that uses Amazon DynamoDB as its primary database. The application requires single-digit millisecond read and write latency from any region and must continue to operate during a regional outage with minimal data loss. Which DynamoDB feature should the SysOps administrator enable to meet these requirements?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

Question 1mediummultiple choice

Full question →

A
DynamoDB Accelerator (DAX)
Why wrong: DAX is an in-memory cache that improves read performance but does not provide cross-region replication or disaster recovery capabilities.
B
DynamoDB global tables
Global tables replicate data across multiple AWS Regions, providing low-latency access and automatic failover during a regional outage, meeting both performance and business continuity needs.
C
DynamoDB Point-in-Time Recovery (PITR)
Why wrong: PITR enables restoration of a table to a point in time within the last 35 days, but recovery time is minutes to hours, and it does not provide continuous availability or global low-latency access.
D
DynamoDB Auto Scaling
Why wrong: Auto Scaling adjusts read/write throughput based on traffic but does not replicate data across regions or provide disaster recovery.

Full breakdown with real-world context →

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, multi-active replication, enabling single-digit millisecond reads and writes from any Region while offering automatic failover and recovery during a regional outage. This feature uses DynamoDB Streams to replicate data across Regions with eventual consistency, meeting the requirement for continued operation with minimal data loss.

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 provide cross-region replication or disaster recovery capabilities.
✓
DynamoDB global tables
Why this is correct
Global tables replicate data across multiple AWS Regions, providing low-latency access and automatic failover during a regional outage, meeting both performance and business continuity needs.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
DynamoDB Point-in-Time Recovery (PITR)
Why it's wrong here
PITR enables restoration of a table to a point in time within the last 35 days, but recovery time is minutes to hours, and it does not provide continuous availability or global low-latency access.
✗
DynamoDB Auto Scaling
Why it's wrong here
Auto Scaling adjusts read/write throughput based on traffic but does not replicate data across regions or provide disaster recovery.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse DynamoDB Accelerator (DAX) with global tables, assuming a caching layer can provide multi-Region availability, but DAX is Region-specific and does not replicate data across Regions.

Detailed technical explanation

How to think about this question

Global tables rely on DynamoDB Streams to capture item-level changes and replicate them to replica tables in other Regions using an asynchronous, eventually consistent model. Under the hood, each replica table is fully independent and can serve reads and writes locally, with conflict resolution using a 'last writer wins' algorithm based on timestamps. In a real-world scenario, if a primary Region fails, the application can redirect traffic to any remaining replica Region with minimal latency impact, though there is a potential for a few seconds of data loss due to replication lag.

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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.

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.

Related SOA-C02 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Monitoring, Logging, and Remediation practice questions

Practise SOA-C02 questions linked to Monitoring, Logging, and Remediation.

Reliability and Business Continuity practice questions

Practise SOA-C02 questions linked to Reliability and Business Continuity.

Deployment, Provisioning, and Automation practice questions

Practise SOA-C02 questions linked to Deployment, Provisioning, and Automation.

Security and Compliance practice questions

Practise SOA-C02 questions linked to Security and Compliance.

Networking and Content Delivery practice questions

Practise SOA-C02 questions linked to Networking and Content Delivery.

Cost and Performance Optimization practice questions

Practise SOA-C02 questions linked to Cost and Performance Optimization.

SOA-C02 fundamentals practice questions

Practise SOA-C02 questions linked to SOA-C02 fundamentals.

SOA-C02 scenario practice questions

Practise SOA-C02 questions linked to SOA-C02 scenario.

SOA-C02 troubleshooting practice questions

Practise SOA-C02 questions linked to SOA-C02 troubleshooting.

Practice this exam

Start a free SOA-C02 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

SOA-C02 practice-test guide →Study guide →Browse all practice tests

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, multi-active replication, enabling single-digit millisecond reads and writes from any Region while offering automatic failover and recovery during a regional outage. This feature uses DynamoDB Streams to replicate data across Regions with eventual consistency, meeting the requirement for continued operation with minimal data loss.

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.

Are there clue words in this question I should notice?

Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

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.