- A
It encrypts credit card numbers automatically.
Why wrong: Cloud DLP does not encrypt; it identifies and can de-identify.
- B
It detects credit card numbers in data during inspection.
InfoType detectors are used to find sensitive data.
- C
It redacts credit card numbers from images.
Why wrong: InfoType detectors identify, not redact.
- D
It de-identifies credit card numbers using masking.
Why wrong: InfoType detectors only identify; de-identification is done by transforms.
Question 619 of 1,000
PCSE Ensuring Data Protection Practice Question
This PCSE practice question tests your understanding of ensuring data protection. 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.
What is the purpose of the Cloud DLP InfoType detector CREDIT_CARD_NUMBER?
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
✓
It detects credit card numbers in data during inspection.
Cloud DLP InfoType detectors are used to identify specific types of sensitive data. CREDIT_CARD_NUMBER is a built-in detector that finds credit card numbers in text or files.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It encrypts credit card numbers automatically.
Why it's wrong here
Cloud DLP does not encrypt; it identifies and can de-identify.
- ✓
It detects credit card numbers in data during inspection.
Why this is correct
InfoType detectors are used to find sensitive data.
Related concept
CIDR notation defines the prefix length.
- ✗
It redacts credit card numbers from images.
Why it's wrong here
InfoType detectors identify, not redact.
- ✗
It de-identifies credit card numbers using masking.
Why it's wrong here
InfoType detectors only identify; de-identification is done by transforms.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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. Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets. 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.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PCSE subnetting questions on CIDR, address ranges, and subnet selection.
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Ensuring Data Protection — study guide chapter
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FAQ
Questions learners often ask
What does this PCSE question test?
Ensuring Data Protection — This question tests Ensuring Data Protection — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: It detects credit card numbers in data during inspection. — Cloud DLP InfoType detectors are used to identify specific types of sensitive data. CREDIT_CARD_NUMBER is a built-in detector that finds credit card numbers in text or files.
What should I do if I get this PCSE question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PCSE subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Last reviewed: Jul 4, 2026
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