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Microsoft AB-731 Exam - Topic 3 Question 12 Discussion

Posted by James on Aug 17, 2026 at 10:11 AM

Your company has an AI solution that uses a prebuilt Azure OpenAI model to generate content. You need to reduce the cost of the solution while minimizing the impact on the quality of the generated output. Which two actions should you perform? (Select TWO.) NOTE: Each correct selection is worth one point.

Suggested Answer: C, D

To reduce Azure OpenAI costs with minimal quality loss, you target the biggest cost drivers: token usage and model price per token (or throughput unit). C (Optimize the prompts) is a best practice because shorter, clearer prompts reduce unnecessary input tokens and often reduce output length by tightening instructions and formatting. Prompt optimization can preserve or even improve quality by removing ambiguity, adding constraints, and using compact context (for example, only the most relevant grounding passages). Lower token consumption directly lowers cost while maintaining response usefulness.

D (Switch to an alternate model) is also effective because different models have different price/performance tradeoffs. Moving from a premium model to a more cost-efficient model (or a smaller variant) can significantly reduce spend. You can minimize quality impact by validating outputs on representative scenarios and using a tiered approach (cheap model by default, expensive model only for complex cases).

The other options are less aligned to the goal. A (Fine-tune) typically increases cost (training and ongoing evaluation) and is not the first-line cost reducer. B (Content moderation) is primarily a safety control; it can add overhead and doesn't directly reduce token costs. E (Decrease hosting hours) applies to capacity-based hosting scenarios, but the question states a prebuilt Azure OpenAI model for content generation---cost reduction is best achieved by prompt/token optimization and selecting the right model.


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12 comments · newest first
CL
Clement 5 days ago
Switching to an alternate model sounds risky. Quality might drop.
AR
Arlette 10 days ago
I agree! Fine-tuning the model could also help, but it might be costly.
MO
Mozelle 15 days ago
I think optimizing the prompts is key. It can really enhance output quality.
AN
Angella 20 days ago
Content moderation is essential, but it doesn't really cut costs.
YO
Youlanda 26 days ago
Decreasing hosting hours sounds like a quick fix, but will it hurt quality?
RO
Rolande 1 month ago
Switching to an alternate model might save money, but will it be as good?
BO
Bobbye 1 month ago
Fine-tuning could be costly, not sure it's worth it.
CO
Corinne 1 month ago
I think optimizing the prompts is a smart move!
LU
Luther 2 months ago
I feel like content moderation is important for quality, but it might not directly reduce costs like optimizing prompts would.
KA
Kaycee 2 months ago
Decreasing hosting hours seems like a straightforward way to cut costs, but I’m not confident it won’t hurt the output.
TR
Truman 2 months ago
I remember a practice question where switching models was suggested, but I wonder if that would actually impact quality here.
CH
Chanel 2 months ago
I think optimizing the prompts could really help reduce costs without sacrificing quality, but I'm not entirely sure about the fine-tuning part.
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