- A
Customer-Managed Encryption Keys (CMEK): You manage key material in Cloud KMS and use it to protect data.
CMEK allows customers to manage their own encryption keys using Cloud KMS.
- B
Customer-Supplied Encryption Keys (CSEK): You supply your own keys for encrypting data at rest.
CSEK enables customers to provide their own keys for encrypting data at rest.
- C
Default Encryption at Rest: Google manages the encryption keys and protects data at rest using AES-256.
By default, Google Cloud encrypts data at rest with Google-managed keys using AES-256.
- D
Encryption in Transit: Data is encrypted using TLS/SSL when traveling between client and server.
Encryption in transit protects data as it moves over networks, typically using TLS/SSL.
- E
Customer-Managed Encryption Keys (CMEK): You supply your own encryption keys.
Why wrong: Incorrect — this description actually refers to CSEK.
- F
Default Encryption at Rest: You manage keys in Cloud KMS.
Why wrong: Incorrect — this describes CMEK, not default encryption.
PDE Ensuring solution quality Practice Question
This PDE practice question tests your understanding of ensuring solution quality. 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.
Match each data encryption concept to its description.
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
Customer-Managed Encryption Keys (CMEK): You manage key material in Cloud KMS and use it to protect data.
The correct matches are: CMEK involves managing keys in Cloud KMS; CSEK involves supplying your own keys; default encryption uses Google-managed keys; encryption in transit uses TLS. Common confusions include swapping CMEK and CSEK.
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.
- ✓
Customer-Managed Encryption Keys (CMEK): You manage key material in Cloud KMS and use it to protect data.
Why this is correct
CMEK allows customers to manage their own encryption keys using Cloud KMS.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Customer-Supplied Encryption Keys (CSEK): You supply your own keys for encrypting data at rest.
Why this is correct
CSEK enables customers to provide their own keys for encrypting data at rest.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Default Encryption at Rest: Google manages the encryption keys and protects data at rest using AES-256.
Why this is correct
By default, Google Cloud encrypts data at rest with Google-managed keys using AES-256.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Encryption in Transit: Data is encrypted using TLS/SSL when traveling between client and server.
Why this is correct
Encryption in transit protects data as it moves over networks, typically using TLS/SSL.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Customer-Managed Encryption Keys (CMEK): You supply your own encryption keys.
Why it's wrong here
Incorrect — this description actually refers to CSEK.
- ✗
Default Encryption at Rest: You manage keys in Cloud KMS.
Why it's wrong here
Incorrect — this describes CMEK, not default encryption.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which PDE 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.
- →
Ensuring solution quality — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this PDE question test?
Ensuring solution quality — This question tests Ensuring solution quality — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Customer-Managed Encryption Keys (CMEK): You manage key material in Cloud KMS and use it to protect data. — The correct matches are: CMEK involves managing keys in Cloud KMS; CSEK involves supplying your own keys; default encryption uses Google-managed keys; encryption in transit uses TLS. Common confusions include swapping CMEK and CSEK.
What should I do if I get this PDE question wrong?
Identify which PDE 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.
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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 PDE practice question is part of Courseiva's free Google Cloud 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 PDE exam.
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