Question 452 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. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 financial services company has deployed a custom fine-tuned model using OCI Generative AI service on a dedicated AI cluster for automated report generation. They use a Python application that sends prompts via the OCI SDK. Recently, they started seeing 429 Too Many Requests errors intermittently. The dedicated cluster has 2 replicas and the application is making about 100 requests per second. The cluster's documented throughput is 50 requests per second per replica. The company has not set up any throttling limits. What is the most likely cause of the 429 errors?

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.

A
The application is exceeding the cluster's replica capacity.
The cluster is at maximum throughput; bursts push over the limit.
B
The OCI SDK version is outdated.
Why wrong: Outdated SDK may cause errors but typically not 429.
C
The API calls are not authenticated.
Why wrong: Authentication errors return 401, not 429.
D
The model's context window is too small for the prompts.
Why wrong: Context window issues cause 400 or incomplete responses.

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 application is exceeding the cluster's replica capacity.

The dedicated AI cluster has 2 replicas, each supporting 50 requests per second, for a total capacity of 100 requests per second. The application is sending exactly 100 requests per second, which matches the cluster's maximum throughput. However, without any throttling limits configured, the service will still enforce its built-in rate limits at the replica level, and any transient burst or uneven distribution across replicas can trigger 429 Too Many Requests errors. The most likely cause is that the application is operating at the cluster's replica capacity boundary, leading to intermittent throttling.

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 application is exceeding the cluster's replica capacity.
Why this is correct
The cluster is at maximum throughput; bursts push over the limit.
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 OCI SDK version is outdated.
Why it's wrong here
Outdated SDK may cause errors but typically not 429.
✗
The API calls are not authenticated.
Why it's wrong here
Authentication errors return 401, not 429.
✗
The model's context window is too small for the prompts.
Why it's wrong here
Context window issues cause 400 or incomplete responses.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may assume the total cluster capacity (100 req/s) is the limiting factor, but the 429 errors occur because each replica enforces its own 50 req/s limit, and uneven request distribution or bursts can cause individual replicas to be overwhelmed.

Detailed technical explanation

How to think about this question

OCI Generative AI service uses a token-bucket algorithm at the replica level to enforce rate limits. Even without explicit throttling configuration, the service applies a default rate limit per replica (50 req/s in this case). When requests arrive faster than the bucket can refill, the service returns a 429 response with a Retry-After header. In a multi-replica setup, load balancers distribute requests, but uneven distribution or micro-bursts can cause one replica to exceed its limit, triggering errors even if the aggregate rate is within the cluster's total capacity.

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 practitioner preparing for the 1Z0-1127 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.

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 application is exceeding the cluster's replica capacity. — The dedicated AI cluster has 2 replicas, each supporting 50 requests per second, for a total capacity of 100 requests per second. The application is sending exactly 100 requests per second, which matches the cluster's maximum throughput. However, without any throttling limits configured, the service will still enforce its built-in rate limits at the replica level, and any transient burst or uneven distribution across replicas can trigger 429 Too Many Requests errors. The most likely cause is that the application is operating at the cluster's replica capacity boundary, leading to intermittent throttling.

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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