- A
Use a few-shot prompt with only safe SELECT examples
Why wrong: Examples may not prevent the model from generating unsafe queries in novel contexts.
- B
Use role prompting: 'You are an expert SQL developer'
Why wrong: Role prompting does not explicitly forbid dangerous operations.
- C
Set frequency penalty to 1.0 to avoid repetitive unsafe patterns
Why wrong: Penalties do not prevent specific unsafe operations.
- D
Include a constraint: 'You may only generate SELECT statements. Do not generate DDL or DML statements like DROP, DELETE, INSERT, or UPDATE.'
This explicit constraint directly addresses the safety concern.
Question 305 of 991
1Z0-1127 Prompt Engineering Practice Question
This 1Z0-1127 practice question tests your understanding of prompt engineering. 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.
A prompt engineer is designing a system that generates SQL queries from natural language. The model sometimes produces unsafe queries (e.g., DROP TABLE). Which constraint in the system prompt would BEST mitigate this risk?
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
✓
Include a constraint: 'You may only generate SELECT statements. Do not generate DDL or DML statements like DROP, DELETE, INSERT, or UPDATE.'
Option D is correct because it explicitly prohibits the model from generating DDL (Data Definition Language) and DML (Data Manipulation Language) statements, directly addressing the risk of unsafe queries like DROP TABLE. By constraining the output to only SELECT statements, the prompt enforces a strict policy that prevents the model from producing destructive or modifying SQL commands, which is the most effective mitigation among the options.
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.
- ✗
Use a few-shot prompt with only safe SELECT examples
Why it's wrong here
Examples may not prevent the model from generating unsafe queries in novel contexts.
- ✗
Use role prompting: 'You are an expert SQL developer'
Why it's wrong here
Role prompting does not explicitly forbid dangerous operations.
- ✗
Set frequency penalty to 1.0 to avoid repetitive unsafe patterns
Why it's wrong here
Penalties do not prevent specific unsafe operations.
- ✓
Include a constraint: 'You may only generate SELECT statements. Do not generate DDL or DML statements like DROP, DELETE, INSERT, or UPDATE.'
Why this is correct
This explicit constraint directly addresses the safety concern.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that implicit guidance (like few-shot examples or role prompting) is sufficient to enforce safety, when in fact only explicit, unambiguous constraints can reliably prevent the model from generating prohibited outputs.
Detailed technical explanation
How to think about this question
In large language models, prompt constraints act as hard guardrails by leveraging instruction-following capabilities to restrict output tokens to a predefined set (e.g., only SELECT keywords). Under the hood, this works by biasing the model's next-token probability distribution toward allowed tokens and away from prohibited ones, effectively creating a policy layer. In real-world deployments, such constraints are often combined with output validation (e.g., regex or SQL parser checks) to catch edge cases where the model might still produce unsafe syntax due to adversarial prompts or tokenization quirks.
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?
Prompt Engineering — This question tests Prompt Engineering — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Include a constraint: 'You may only generate SELECT statements. Do not generate DDL or DML statements like DROP, DELETE, INSERT, or UPDATE.' — Option D is correct because it explicitly prohibits the model from generating DDL (Data Definition Language) and DML (Data Manipulation Language) statements, directly addressing the risk of unsafe queries like DROP TABLE. By constraining the output to only SELECT statements, the prompt enforces a strict policy that prevents the model from producing destructive or modifying SQL commands, which is the most effective mitigation among the options.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This 1Z0-1127 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 exam.
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