SOA-C02 Reliability and Business Continuity Practice Question
This SOA-C02 practice question tests your understanding of reliability and business continuity. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 a production application running on Amazon ECS with Fargate. The application must be highly available across multiple Availability Zones. Which TWO configurations should be implemented?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the ECS service to run tasks in at least two Availability Zones.
Options A and C are correct. Using an Application Load Balancer (Option A) distributes traffic across tasks. Running tasks in multiple Availability Zones (Option C) ensures availability if one AZ fails. Option B (single AZ) is not highly available. Option D (network mode) is not related to AZ distribution. Option E (spot) is not for high availability.
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.
✗
Configure the ECS service to run tasks in a single Availability Zone to reduce network latency.
Why it's wrong here
Incorrect: Single AZ is a single point of failure.
✓
Configure the ECS service to run tasks in at least two Availability Zones.
Why this is correct
Correct: Running tasks in multiple AZs provides fault tolerance.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use the awsvpc network mode for the task definition.
Why it's wrong here
Incorrect: Network mode does not affect AZ placement.
✓
Place the ECS service behind an Application Load Balancer.
Why this is correct
Correct: An ALB distributes traffic across tasks, enabling high availability.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Fargate Spot capacity providers to reduce costs.
Why it's wrong here
Incorrect: Fargate Spot tasks can be interrupted, reducing reliability.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which SOA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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: Configure the ECS service to run tasks in at least two Availability Zones. — Options A and C are correct. Using an Application Load Balancer (Option A) distributes traffic across tasks. Running tasks in multiple Availability Zones (Option C) ensures availability if one AZ fails. Option B (single AZ) is not highly available. Option D (network mode) is not related to AZ distribution. Option E (spot) is not for high availability.
What should I do if I get this SOA-C02 question wrong?
Identify which SOA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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