- A
Configure a Virtual Cloud Network (VCN) with private subnets
Why wrong: VCN provides network isolation but does not mask data content.
- B
Deploy a Web Application Firewall (WAF) in front of the API
Why wrong: WAF protects against web attacks but does not address PHI masking.
- C
Set up Identity and Access Management (IAM) policies to restrict access
Why wrong: IAM controls access but does not mask data in prompts or responses.
- D
Use the data masking capability within OCI Generative AI
OCI Generative AI supports data masking to redact sensitive information like PHI.
Question 715 of 991
1Z0-1127 Using OCI Generative AI Service Practice Question
This 1Z0-1127 practice question tests your understanding of using oci generative ai service. 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.
A healthcare company wants to use OCI Generative AI to summarize patient medical records while ensuring PHI compliance. Which OCI service feature should they enable?
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
✓
Use the data masking capability within OCI Generative AI
Option D is correct because OCI Generative AI includes a built-in data masking capability specifically designed to automatically detect and redact sensitive information such as Protected Health Information (PHI) from input prompts and generated outputs. This feature ensures compliance with healthcare regulations like HIPAA by preventing PHI from being stored, logged, or exposed during inference, without requiring external preprocessing or post-processing.
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.
- ✗
Configure a Virtual Cloud Network (VCN) with private subnets
Why it's wrong here
VCN provides network isolation but does not mask data content.
- ✗
Deploy a Web Application Firewall (WAF) in front of the API
Why it's wrong here
WAF protects against web attacks but does not address PHI masking.
- ✗
Set up Identity and Access Management (IAM) policies to restrict access
Why it's wrong here
IAM controls access but does not mask data in prompts or responses.
- ✓
Use the data masking capability within OCI Generative AI
Why this is correct
OCI Generative AI supports data masking to redact sensitive information like PHI.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The OCI Generative AI certification often tests the misconception that network security (VCN) or access control (IAM) alone can satisfy PHI compliance, when in fact content-level data masking is required to prevent sensitive data from being processed or stored by the AI model.
Detailed technical explanation
How to think about this question
OCI Generative AI's data masking uses pattern-based and machine learning models to identify PHI fields (e.g., names, dates, SSNs, medical record numbers) and replaces them with synthetic placeholders or removes them entirely before the prompt reaches the underlying LLM. This masking occurs at the service layer, ensuring that even if logs or audit trails are enabled, no raw PHI is persisted. In a real-world scenario, a healthcare provider could submit a patient's clinical notes for summarization, and the service would automatically redact identifiers like 'John Doe' or 'SSN 123-45-6789' before generating the summary, maintaining HIPAA compliance without custom code.
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 network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 1Z0-1127 question test?
Using OCI Generative AI Service — This question tests Using OCI Generative AI Service — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use the data masking capability within OCI Generative AI — Option D is correct because OCI Generative AI includes a built-in data masking capability specifically designed to automatically detect and redact sensitive information such as Protected Health Information (PHI) from input prompts and generated outputs. This feature ensures compliance with healthcare regulations like HIPAA by preventing PHI from being stored, logged, or exposed during inference, without requiring external preprocessing or post-processing.
What should I do if I get this 1Z0-1127 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.
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Last reviewed: Jul 4, 2026
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