1Z0-1127-25 Prompt Engineering Practice Question
A prompt engineer wants the LLM to adopt the persona of a 'friendly customer support agent' for all interactions. Which approach is most effective?
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
✓
Set the persona in the system prompt (or preamble) before the conversation begins
Oracle's generative AI services support a system prompt (or preamble in Cohere) that sets the assistant's persona, which applies to the entire conversation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Include the persona instruction in every user message
Why it's wrong here
Repeating the persona wastes tokens and is less consistent than a system-level instruction.
- ✗
Use a high temperature to encourage friendly language
Why it's wrong here
Temperature does not enforce persona; it affects randomness.
- ✗
Fine-tune the model on customer support dialogues
Why it's wrong here
Fine-tuning is overkill and not necessary when a system prompt suffices.
- ✓
Set the persona in the system prompt (or preamble) before the conversation begins
Why this is correct
The system prompt/preamble influences all subsequent messages.
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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.