ANS-C01 Network Management and Operations Practice Question
A company monitors its VPC using VPC Flow Logs. The logs are sent to CloudWatch Logs. The security team wants to detect traffic to known malicious IP addresses. Which AWS service can be used to analyze the flow logs in near real-time?
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
✓
Amazon Kinesis Data Analytics
Amazon Athena can query VPC Flow Logs stored in S3, but for near real-time analysis, Amazon Kinesis Data Analytics (or Kinesis Data Firehose with Lambda) can process streaming logs. However, the simplest managed service for real-time pattern matching is Amazon Kinesis Data Analytics with SQL.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS WAF
Why it's wrong here
WAF protects web applications, not for analyzing flow logs.
- ✗
AWS CloudTrail
Why it's wrong here
CloudTrail records API calls, not network traffic.
- ✗
Amazon Athena
Why it's wrong here
Athena is for querying data at rest, not near real-time streaming.
- ✓
Amazon Kinesis Data Analytics
Why this is correct
Can process streaming flow logs in real-time and detect patterns.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 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 ANS-C01 exam.