Question 658 of 1,740
Monitoring and LoggingmediumMultiple SelectObjective-mapped

DOP-C02 Monitoring and Logging Practice Question

This DOP-C02 practice question tests your understanding of monitoring and logging. 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 is using Amazon CloudWatch Logs to collect logs from multiple EC2 instances. They need to filter logs in real time and send specific log events to a custom application for processing. Which TWO services can they use to achieve this?

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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

Configure a CloudWatch Logs subscription filter that invokes an AWS Lambda function.

Correct: A (CloudWatch Logs subscription filter with Lambda) and D (CloudWatch Logs subscription filter with Kinesis Data Firehose). Option B is wrong because Kinesis Data Analytics is for analytics, not forwarding. Option C is wrong because CloudWatch Events is for events, not log filtering. Option E is wrong because S3 is a destination, not a real-time processing service.

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 Analytics to process the log stream.

    Why it's wrong here

    Kinesis Data Analytics is for running SQL on streaming data, not for forwarding.

  • Configure a CloudWatch Logs subscription filter that invokes an AWS Lambda function.

    Why this is correct

    Lambda can process filtered log events in real time.

    Related concept

    Static NAT maps one inside address to one outside address.

  • Create a CloudWatch Events rule to capture log events and send them to Amazon SQS.

    Why it's wrong here

    CloudWatch Events does not directly filter log events from log groups.

  • Configure a CloudWatch Logs subscription filter that sends data to Amazon Kinesis Data Firehose.

    Why this is correct

    Kinesis Data Firehose can deliver filtered log events to custom applications.

    Related concept

    Static NAT maps one inside address to one outside address.

  • Use Amazon S3 event notifications to trigger a Lambda function on new log files.

    Why it's wrong here

    This is for object events in S3, not real-time log filtering.

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.

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FAQ

Questions learners often ask

What does this DOP-C02 question test?

Monitoring and Logging — This question tests Monitoring and Logging — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: Configure a CloudWatch Logs subscription filter that invokes an AWS Lambda function. — Correct: A (CloudWatch Logs subscription filter with Lambda) and D (CloudWatch Logs subscription filter with Kinesis Data Firehose). Option B is wrong because Kinesis Data Analytics is for analytics, not forwarding. Option C is wrong because CloudWatch Events is for events, not log filtering. Option E is wrong because S3 is a destination, not a real-time processing service.

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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Last reviewed: Jun 20, 2026

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This DOP-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 DOP-C02 exam.