The answer is to modify the Batch job definition to increase the timeout value to 3600 seconds (60 minutes). This is correct because the AWS Batch job definition’s timeout setting specifies the maximum duration a job can run before it is forcibly terminated with a TIMEOUT status; the default or configured value of 1800 seconds (30 minutes) is killing legitimate long-running transcoding jobs. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of job definition parameters and how they interact with job queues and retry strategies—a common trap is confusing the job queue’s timeout with the job definition’s timeout, or assuming the issue lies in Lambda or S3 triggers. Remember that the job definition timeout is a hard limit that overrides any queue-level settings, so always check it first when jobs fail at a consistent duration. A useful memory tip: “Timeout in the definition, not the queue, is the one that terminates you.”
DOP-C02 Resilient Cloud Solutions Practice Question
This DOP-C02 practice question tests your understanding of resilient cloud solutions. 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 media company runs a video processing pipeline on AWS. Raw videos are uploaded to an S3 bucket, which triggers a Lambda function to start an AWS Batch job for transcoding. The Batch job reads the source video from S3, processes it, and writes the output to another S3 bucket. Recently, the company has seen an increase in processing failures. Investigation shows that the Batch jobs are being terminated with a 'TIMEOUT' status after running for exactly 30 minutes. The video files are large, and some jobs legitimately take up to 45 minutes. The Batch job definition has a 'timeout' setting configured. Which action should be taken to resolve this issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Modify the Batch job definition to increase the 'timeout' value to 3600 seconds (60 minutes).
The timeout configured in the job definition is causing jobs that exceed 30 minutes to be terminated. Increasing the timeout to 60 minutes allows longer-running jobs to complete.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Modify the Batch job definition to increase the 'timeout' value to 3600 seconds (60 minutes).
Why this is correct
The timeout in the job definition controls how long Batch allows a job to run.
Related concept
Static NAT maps one inside address to one outside address.
✗
Increase the S3 bucket lifecycle policy to retain videos longer.
Why it's wrong here
S3 lifecycle does not affect Batch job timeout.
✗
Increase the Lambda function timeout to 60 minutes.
Why it's wrong here
Lambda timeout is unrelated to Batch job timeout.
✗
Change the Batch job queue to a different compute environment.
Why it's wrong here
Changing compute environment does not affect the timeout setting.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DOP-C02 NAT questions on configuration and troubleshooting.
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Modify the Batch job definition to increase the 'timeout' value to 3600 seconds (60 minutes). — The timeout configured in the job definition is causing jobs that exceed 30 minutes to be terminated. Increasing the timeout to 60 minutes allows longer-running jobs to complete.
What should I do if I get this DOP-C02 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DOP-C02 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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