Question 202 of 991

Using OCI Generative AI Service →hardMultiple ChoiceObjective-mapped

1Z0-1127 Using OCI Generative AI Service Practice Question

This 1Z0-1127 practice question tests your understanding of using oci generative ai service. 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.

Network Topology

Refer to the exhibit. A developer receives this error when trying to get details of a model they know exists. What is the most likely cause?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Network Topology

A
The region is incorrect; the model is in a different region
Why wrong: The error does not indicate a region mismatch; it focuses on compartment and authorization.
B
The model ID is misspelled
Why wrong: While misspelling could cause a 404, the error also mentions permission, making compartment or permission issues more likely if the ID is correct.
C
The model is in a different compartment that the developer cannot access
The error explicitly mentions the compartment ID, and if the model resides in another compartment, the user would get this error even if they have permissions on that other compartment but were not targeting it.
D
The developer does not have the 'inspect' permission on the model
Why wrong: Lacking permissions could result in 'NotAuthorized', but the error also says 'or perhaps you do not have permission', which is generic. The compartment mismatch is a common cause.

Full breakdown with real-world context →

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

✓

The model is in a different compartment that the developer cannot access

Option C is correct because the error 'not found' or 'access denied' when retrieving a known model in OCI Generative AI typically indicates an authorization failure due to compartment restrictions. The model exists, but the developer's IAM policy does not grant access to the compartment where the model is deployed, causing the API to return a 404 or 403 error as if the resource does not exist.

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.

✗
The region is incorrect; the model is in a different region
Why it's wrong here
The error does not indicate a region mismatch; it focuses on compartment and authorization.
✗
The model ID is misspelled
Why it's wrong here
While misspelling could cause a 404, the error also mentions permission, making compartment or permission issues more likely if the ID is correct.
✓
The model is in a different compartment that the developer cannot access
Why this is correct
The error explicitly mentions the compartment ID, and if the model resides in another compartment, the user would get this error even if they have permissions on that other compartment but were not targeting it.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The developer does not have the 'inspect' permission on the model
Why it's wrong here
Lacking permissions could result in 'NotAuthorized', but the error also says 'or perhaps you do not have permission', which is generic. The compartment mismatch is a common cause.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Oracle often tests the nuance that OCI returns a 'not found' error for resources in inaccessible compartments, leading candidates to incorrectly assume the model ID is wrong or the region is incorrect, rather than recognizing the compartment access issue.

Detailed technical explanation

How to think about this question

In OCI, IAM policies are compartment-scoped, and resource access is evaluated at the compartment level before individual resource permissions. When a user lacks access to the compartment containing a model, the API returns a 404 (Not Found) to avoid revealing resource existence, a security practice known as 'resource hiding'. This behavior is consistent across OCI services like Generative AI, where model discovery and retrieval APIs enforce compartment-level authorization first.

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 junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.

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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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: The model is in a different compartment that the developer cannot access — Option C is correct because the error 'not found' or 'access denied' when retrieving a known model in OCI Generative AI typically indicates an authorization failure due to compartment restrictions. The model exists, but the developer's IAM policy does not grant access to the compartment where the model is deployed, causing the API to return a 404 or 403 error as if the resource does not exist.

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.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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