1Z0-1127-25 LLM Fundamentals Practice Question
A data scientist is debugging a RAG system where the generated answers are not relevant to the retrieved documents. Which TWO factors are MOST likely causing this issue?
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 retriever is returning irrelevant chunks due to poor embeddings or low similarity threshold
If the retriever returns irrelevant chunks or the generation model ignores the context, the answers will be off-topic. Checking retrieval relevance and prompt instruction is key.
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 retriever is returning irrelevant chunks due to poor embeddings or low similarity threshold
Why this is correct
Irrelevant chunks lead to irrelevant answers; this is a common cause.
- ✓
The generation model is not conditioned on the retrieved chunks, possibly because the prompt does not instruct it to use them
Why this is correct
If the prompt does not tell the model to use the retrieved context, it may ignore it.
- ✗
The context window of the generation model is smaller than the retrieved chunks
Why it's wrong here
If chunks exceed the context window, they might be truncated, but that would cause loss of detail, not irrelevance.
- ✗
The temperature is set too low, making outputs deterministic
Why it's wrong here
Low temperature makes outputs less random but does not cause irrelevance to context.
- ✗
The chunking strategy produces chunks that are too small, losing context
Why it's wrong here
Too-small chunks can miss context but would still be relevant; the issue is irrelevance, not lack of context.
Go deeper
Related to this question
About these practice questions
One of 768 original 1Z0-1127-25 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 1Z0-1127-25 practice question is part of Courseiva's free Oracle 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 1Z0-1127-25 exam.