- A
AWS WAF: Protects web applications from common web exploits
AWS WAF is a web application firewall that helps protect web applications from common web exploits like SQL injection and cross-site scripting.
- B
AWS Shield: Provides DDoS protection
AWS Shield is a managed DDoS protection service that safeguards applications running on AWS.
- C
AWS IAM: Manages access to AWS services and resources
AWS Identity and Access Management (IAM) enables you to manage access to AWS services and resources securely.
- D
AWS KMS: Creates and manages encryption keys
AWS Key Management Service (KMS) makes it easy to create and manage cryptographic keys and control their use across a wide range of AWS services.
- E
AWS WAF: Monitors API calls and user activity
Why wrong: Incorrect — this describes AWS CloudTrail, not AWS WAF. AWS CloudTrail monitors API calls and user activity.
- F
AWS Shield: Creates and manages encryption keys
Why wrong: Incorrect — this describes AWS KMS, not AWS Shield. AWS Shield provides DDoS protection.
AWS Security Services Functions
This CLF-C02 practice question tests your understanding of billing, pricing, and support. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Match each AWS security service to its function.
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 WAF: Protects web applications from common web exploits
The correct matches are: AWS WAF protects web applications from common exploits; AWS Shield provides DDoS protection; AWS IAM manages access to AWS resources; AWS KMS creates and manages encryption keys. Common confusions include mixing up AWS WAF with CloudTrail (monitoring) or misattributing encryption key management to AWS Shield.
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.
- ✓
AWS WAF: Protects web applications from common web exploits
Why this is correct
AWS WAF is a web application firewall that helps protect web applications from common web exploits like SQL injection and cross-site scripting.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
AWS Shield: Provides DDoS protection
Why this is correct
AWS Shield is a managed DDoS protection service that safeguards applications running on AWS.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
AWS IAM: Manages access to AWS services and resources
Why this is correct
AWS Identity and Access Management (IAM) enables you to manage access to AWS services and resources securely.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
AWS KMS: Creates and manages encryption keys
Why this is correct
AWS Key Management Service (KMS) makes it easy to create and manage cryptographic keys and control their use across a wide range of AWS services.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS WAF: Monitors API calls and user activity
Why it's wrong here
Incorrect — this describes AWS CloudTrail, not AWS WAF. AWS CloudTrail monitors API calls and user activity.
- ✗
AWS Shield: Creates and manages encryption keys
Why it's wrong here
Incorrect — this describes AWS KMS, not AWS Shield. AWS Shield provides DDoS protection.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which CLF-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
Billing, Pricing, and Support — study guide chapter
Learn the concepts, then practise the questions
- →
Billing, Pricing, and Support practice questions
Targeted practice on this topic area only
- →
All CLF-C02 questions
1,024 questions across all exam domains
- →
AWS Certified Cloud Practitioner CLF-C02 study guide
Full concept coverage aligned to exam objectives
- →
CLF-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related CLF-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Cloud Concepts practice questions
Practise CLF-C02 questions linked to Cloud Concepts.
Security and Compliance practice questions
Practise CLF-C02 questions linked to Security and Compliance.
Cloud Technology and Services practice questions
Practise CLF-C02 questions linked to Cloud Technology and Services.
Billing, Pricing, and Support practice questions
Practise CLF-C02 questions linked to Billing, Pricing, and Support.
AWS shared responsibility model practice questions
Practise CLF-C02 questions linked to AWS shared responsibility model.
AWS IAM practice questions
Practise CLF-C02 questions linked to AWS IAM.
AWS pricing practice questions
Practise CLF-C02 questions linked to AWS pricing.
AWS support plans practice questions
Practise CLF-C02 questions linked to AWS support plans.
AWS S3 practice questions
Practise CLF-C02 questions linked to AWS S3.
AWS EC2 practice questions
Practise CLF-C02 questions linked to AWS EC2.
Practice this exam
Start a free CLF-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this CLF-C02 question test?
Billing, Pricing, and Support — This question tests Billing, Pricing, and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS WAF: Protects web applications from common web exploits — The correct matches are: AWS WAF protects web applications from common exploits; AWS Shield provides DDoS protection; AWS IAM manages access to AWS resources; AWS KMS creates and manages encryption keys. Common confusions include mixing up AWS WAF with CloudTrail (monitoring) or misattributing encryption key management to AWS Shield.
What should I do if I get this CLF-C02 question wrong?
Identify which CLF-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 →
Keep practising
More CLF-C02 practice questions
- A company publishes a message each time a new product is added to its catalogue. Three services need to receive this mes…
- A media company stores frequently accessed video thumbnails in Amazon S3. The thumbnails are read multiple times every d…
- A company needs a service to translate domain names (like www.example.com) into IP addresses, check the health of their…
- A startup runs an application on AWS and receives a monthly bill that charges exactly for the number of compute hours us…
- A financial institution runs its core banking application on-premises due to regulatory requirements. It has connected i…
- A company wants to run a MySQL database in AWS without managing database software installation, applying patches, settin…
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.