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Oracle 1Z0-1127-25

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Exam contains 72 questions

Page 4 of 12
Question 19 🔥

trained C. When there is a need to add learnable parameters to a Large Language Model (LLM) without task- specific training D. When the model requires continued pretraining on unlabeled data Explanation: Comprehensive and Detailed In -Depth Explanation= Soft prompting adds trainable parameters (soft prompts) to adapt an LLM without retraining its core weights, ideal for low-resource customization without task-specific data. This makes Option C correct. Option A suits fine -tuning. Option B may require more than soft prompting (e.g., domain fine -tuning). Option D describes pretraining, not soft prompting. Soft prompting is efficient for specific adaptations. : OCI 2025 Generative AI documentation likely discusses soft prompting under PEFT methods. Which is a characteristic of T -Few fine -tuning for Large Language Models (LLMs)?

Question 20 🔥

Explanation: Comprehensive and Detailed In -Depth Explanation= The RAG (Retrieval -Augmented Generation) Sequence model retrieves a set of relevant documents for a query from an external knowledge base (e.g., via a vector database) and uses them collectively with the LLM to generate a cohesive, informed response. This leverages multiple sources for better context, making Option B correct. Option A describes a simpler approach (e.g., RAG Token), not Sequence. Option C is incorrect —RAG considers the full query. Option D is false —query modification isn’t standard in RAG Sequence. This method enhances response quality with diverse inputs. : OCI 2025 Generative AI documentation likely details RAG Sequence under retrieval -augmented techniques. How are documents usually evaluated in the simplest form of keyword -based search?

Question 21 🔥

Explanation: Comprehensive and Detailed In -Depth Explanation= Vector databases store embeddings that preserve semantic relationships (e.g., similarity between "dog" and "puppy") via their positions in high -dimensional space. This accuracy enables LLMs to retrieve contextually relevant data, improving understanding and generation, making Option B correct. Option A (linear) is too vague and unrelated. Option C (hierarchical) applies more to relational databases. Option D (temporal) isn’t the focus —semantics drives LLM performance. Semantic accuracy is vital for meaningful outputs. : OCI 2025 Generative AI documentation likely discusses vector database accuracy under embeddings and RAG. What is the purpose of Retrievers in LangChain?

Question 22 🔥

Comprehensive and Detailed In -Depth Explanation= Greedy decoding selects the word with the highest probability at each step, aiming for locally optimal choices without considering future tokens. This makes Option C correct. Option A (random selection) describes sampling, not greedy decoding. Option B (position -based) isn’t how greedy decoding works —it’s probability -driven. Option D (weighted random) aligns with top -k or top -p sampling, not greedy. Greedy decoding is fast but can lack diversity. : OCI 2025 Generative AI documentation likely explains greedy decoding under decoding strategies. What do prompt templates use for templating in language model applications?

Question 23 🔥

exaggerates —top words still have impact, just less dominance. Option B is backwards — decreasing temperature sharpens, not broadens. Option D is false —temperature directly alters distribution, not speed. This controls output creativity. : OCI 2025 Generative AI documentation likely reiterates temperature effects under decoding parameters. How does the structure of vector databases differ from traditional relational databases?

Question 24 🔥

➢ TOTAL QUESTIONS: 168 What is the role of temperature in the decoding process of a Large Language Model (LLM)?

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