AI-901 System Prompt Capabilities and Limitations
Short answer
Statement 1 is No. Statement 2 is No. Statement 3 is Yes.
Question
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Key Takeaways
The common trap is confusing the functional role of a system prompt (guiding output) with infrastructure roles like authentication/authorization or service quotas (TPM).
This AI-901 question tests the understanding of system prompts, clarifying that they guide model behavior but do not handle security authorization or rate limiting. The page establishes that system prompts are purely instructional text for the AI model.
Common mistake: Learners often incorrectly assume system prompts can authorize users because they define 'who' the AI is acting as, or believe they reduce TPM by making responses concise, ignoring that TPM is a hard infrastructure limit.
Expert Analysis
Why the Answer Is Correct
A system prompt provides instructions to the generative AI model to shape its tone, style, and response logic; therefore, it guides behavior (Statement 3 is Yes). It has no authority to verify user identity or grant permissions, which are handled by Entra ID or API keys (Statement 1 is No). Additionally, Tokens Per Minute (TPM) is a service-level quota managed by the platform, not a metric controlled by the prompt content itself (Statement 2 is No).
Why Other Candidate Answers Are Wrong
Some candidates argue that prompting for concise answers reduces token usage, thereby indirectly affecting TPM. However, TPM is a maximum throughput limit enforced by the service provider; while shorter responses use fewer tokens, the prompt does not 'reduce TPM' as a configuration setting. Similarly, confusing 'acting as an admin' in a prompt with actual security authorization is a fundamental error in AI security concepts.
Community Comment Notes
Community consensus strongly supports NO, NO, YES. Users like nap61 and Shifin emphasize that authorization requires identity verification tokens and authentication flows, not text prompts. Several commenters note that TPM is a capacity metric unrelated to prompt engineering strategies.
Exam Strategy
Distinguish clearly between model-level configurations (prompts, temperature) and infrastructure-level constraints (quotas, authentication). Remember that system prompts are for instruction, not security or resource management.
Frequently Asked Questions
Can a system prompt be used for user authentication?
Do system prompts control Tokens Per Minute (TPM)?
Discussion 11 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 11
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nap61 👍 71. System prompts can be used to authorize users. → NO A system prompt cannot authorize anyone. Authorization requires: identity verification tokens roles permissions authentication flows A system prompt is just text that guides the model’s behavior. It has zero security authority. So the correct answer is NO. 2. A system prompt is used to reduce tokens per minute (TPM). → NO A system prompt does not reduce TPM. TPM is controlled by: rate limits model usage request size API quotas A system prompt does not influence billing or throughput. It only influences behavior, not performance. So the correct answer is NO. 3. A system prompt guides the behavior of a generative AI model. → YES This is the true statement. A system prompt: sets tone defines rules establishes constraints guides how the model responds This is exactly what system prompts are designed for. So the correct answer is YES.
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RRandell 👍 41. Yes 2. No 3. No A system prompt guides model behaviour, improves response quality, and can reduce harmful outputs. It's core purpose isn't managing TPM
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Shifin 👍 3System prompts can be used to authorize users - No (Authorization is handled through authentication and access control mechanisms, not system prompts.) A system prompt is used to reduce tokens per minute (TPM) - No (TPM is a service quota/rate-limit metric. System prompts do not exist to reduce TPM usage.) A system prompt guides the behavior of a generative AI model - Yes (System prompts provide instructions that define the model's role, tone, constraints, and behavior, guiding how it responds to users.)
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Mary_Matic 👍 2System prompts can be used to authorize users (No): Authorization and authentication are handled by platform security, identity providers (like Microsoft Entra ID), or API keys, not by model system prompts. A system prompt is used to reduce tokens per minute (TPM) (No): TPM is a capacity and rate-limiting metric managed by the service infrastructure, unrelated to system prompts. A system prompt guides the behavior of a generative AI model (Yes): System prompts define the persona, rules, role, and guidelines that steer how the model responds to users.
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Avbud 👍 21. No -> system prompts can't authorize users, either Entra ID or api key does 2. No -> TPM is configured in deployment settings not via system prompts! 3. Yes
Show 6 more comments
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MichaelinX 👍 22. A system prompt is used to reduce tokens per minute (TPM). -> No. I think the answer is No? TPM / rate limit / throughput / quota / capacity
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Jedi_Jeremy 👍 1The second option is poorly worked. You can not DIRECTLY reduce tokens per minute with a system prompt. However, you can indirectly influence by instructing it to reduce the length of the response. Concise responses mean fewer tokens. My gut tells me for the test this is NO. Thoughts?
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2210divya 👍 1Authorization is handled by: Azure AD / Entra ID, Authentication & Authorization mechanisms, RBAC. TPM (Tokens Per Minute) is related to: Model quota, Throughput limits, Capacity management System prompts are not designed to control TPM. Final Answer: No No Yes
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imvelez 👍 1System prompts can be used to authorize users. - No A system prompt is used to reduce tokens per minute (TPM). - No A system prompt guides the behavior of a generative AI model. - Yes
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Veenala 👍 1No No Yes The system prompt is an instruction given to the model on how to behave, not a part of the configurations.
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Trinayana 👍 11: No 2: No 3: Yes
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