- A
Amazon CloudWatch
Why wrong: CloudWatch monitors metrics and logs. While it provides operational visibility, it does not provide patch management, remote command execution, or parameter store capabilities.
- B
AWS Config
Why wrong: AWS Config tracks resource configuration compliance. It does not perform patching, remote command execution, or parameter storage.
- C
AWS Systems Manager
Systems Manager provides Patch Manager for automated patching, Session Manager for SSH-free remote access, Run Command for running scripts across instances, and Parameter Store for centralised configuration — all required capabilities.
- D
AWS CloudFormation
Why wrong: CloudFormation provisions and manages AWS infrastructure as code. It does not manage operating system patching or remote command execution on running instances.
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 manages a fleet of hundreds of EC2 instances and needs to automate patching across all instances, run commands remotely without SSH, and store configuration parameters centrally. Which AWS service provides these operational management capabilities?
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
AWS Systems Manager
AWS Systems Manager is the correct choice because it provides a unified interface for operational management tasks, including automated patching via Patch Manager, remote command execution without SSH using Run Command, and centralized parameter storage with Parameter Store. These capabilities directly address the need to manage fleets of EC2 instances at scale without requiring direct network access to each instance.
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.
- ✗
Amazon CloudWatch
Why it's wrong here
CloudWatch monitors metrics and logs. While it provides operational visibility, it does not provide patch management, remote command execution, or parameter store capabilities.
- ✗
AWS Config
Why it's wrong here
AWS Config tracks resource configuration compliance. It does not perform patching, remote command execution, or parameter storage.
- ✓
AWS Systems Manager
Why this is correct
Systems Manager provides Patch Manager for automated patching, Session Manager for SSH-free remote access, Run Command for running scripts across instances, and Parameter Store for centralised configuration — all required capabilities.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS CloudFormation
Why it's wrong here
CloudFormation provisions and manages AWS infrastructure as code. It does not manage operating system patching or remote command execution on running instances.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Systems Manager with AWS Config because both deal with 'management' and 'configuration,' but Config is only for compliance auditing and drift detection, not for patching or remote command execution.
Trap categories for this question
Command / output trap
CloudWatch monitors metrics and logs. While it provides operational visibility, it does not provide patch management, remote command execution, or parameter store capabilities.
Detailed technical explanation
How to think about this question
AWS Systems Manager uses the SSM Agent installed on EC2 instances to communicate with the Systems Manager service via HTTPS (port 443), eliminating the need for SSH or RDP. Patch Manager leverages pre-defined patch baselines (e.g., for Windows or Amazon Linux 2) and can schedule patching using maintenance windows, while Run Command uses a document-based model (SSM documents) to execute scripts or commands across instances using tags or resource groups. Parameter Store supports both plaintext and encrypted parameters (using AWS KMS) and integrates with other AWS services like Lambda and CloudFormation for dynamic configuration.
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.
TExam Day Tips
- 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 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.
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 |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Cloud Technology and Services — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Systems Manager — AWS Systems Manager is the correct choice because it provides a unified interface for operational management tasks, including automated patching via Patch Manager, remote command execution without SSH using Run Command, and centralized parameter storage with Parameter Store. These capabilities directly address the need to manage fleets of EC2 instances at scale without requiring direct network access to each instance.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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