DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. 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 containerized application on Amazon ECS Fargate. The application writes logs to stdout. The operations team wants to centralize log monitoring and set up alarms for error patterns. What should a developer do to meet these requirements with minimal operational overhead?
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 task definition to use the awslogs log driver and set the log group.
Option B is correct because the awslogs driver automatically sends stdout logs to CloudWatch Logs, enabling alarms and central monitoring. Option A is wrong because CloudWatch agent is for EC2. Option C is wrong because Kinesis adds complexity. Option D is wrong because CloudWatch Logs for ECS requires no extra SDK.
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.
✗
Use Amazon Kinesis Data Firehose to stream logs to Amazon S3 and then to CloudWatch Logs.
Why it's wrong here
Overly complex for real-time monitoring.
✗
Modify the application code to use the AWS SDK for CloudWatch Logs to put log events.
Why it's wrong here
Unnecessary; the awslogs driver handles this.
✗
Install the CloudWatch agent in the container and configure it to send logs.
Why it's wrong here
Fargate does not support installing agents; use awslogs driver.
✓
Configure the ECS task definition to use the awslogs log driver and set the log group.
Why this is correct
awslogs driver sends stdout to CloudWatch Logs natively.
Related concept
Static NAT maps one inside address to one outside address.
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 DVA-C02 NAT questions on configuration and troubleshooting.
Development with AWS Services — This question tests Development with AWS Services — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Configure the ECS task definition to use the awslogs log driver and set the log group. — Option B is correct because the awslogs driver automatically sends stdout logs to CloudWatch Logs, enabling alarms and central monitoring. Option A is wrong because CloudWatch agent is for EC2. Option C is wrong because Kinesis adds complexity. Option D is wrong because CloudWatch Logs for ECS requires no extra SDK.
What should I do if I get this DVA-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 DVA-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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