Microsoft AI-900 Exam - Topic 4 Question 98 Discussion

Actual exam question for Microsoft's AI-900 exam

Question #: 98
Topic #: 4

[All AI-900 Questions]

During the process of Machine Learning, when should you review evaluation metrics?

AAfter you clean the data.

BBefore you train a model.

CBefore you choose the type of model.

DAfter you test a model on the validation data.

Show Suggested Answer

Suggested Answer: D

by Lamar at Jan 05, 2026, 05:16 AM

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Jennie

2 days ago

D) After you test a model on the validation data. Duh, how else are you gonna know if it's any good?

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Aileen

7 days ago

A) After you clean the data. Gotta make sure it's all nice and tidy first.

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Catherin

28 days ago

C) Before you choose the type of model. Helps you pick the right one for the job.

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Carole

1 month ago

B) Before you train a model. Gotta know what you're aiming for, right?

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Laine

1 month ago

D) After you test a model on the validation data. That's when you can really see how well it's performing.

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Helaine

1 month ago

I practiced a question similar to this, and I think the right time is after cleaning the data. But I could be mixing it up with another concept!

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Kassandra

2 months ago

I feel like we should consider metrics before choosing the type of model. Different models might require different evaluation criteria, but I can't recall exactly.

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Emelda

2 months ago

I'm not too sure, but I remember something about checking metrics after testing on validation data. That seems important for understanding performance.

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Renay

2 months ago

I think we should review evaluation metrics before we train a model, right? It helps to know what we're aiming for.

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Jonell

2 months ago

Reviewing the metrics at multiple stages seems important - before the model, during training, and after validation. Gotta make sure the model is on the right track.

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Nan

2 months ago

I'm a bit confused on this one. Is it after cleaning the data or before choosing the model? I'll have to think it through carefully.

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Charlie

2 months ago

Definitely before training the model. You need to know what you're optimizing for before you start the training process.

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Jenelle

3 months ago

Hmm, I'm not sure. I guess I'd review the metrics after testing the model on the validation data, to see how well it's performing.

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Rosalia

3 months ago

I think I'd review the evaluation metrics before choosing the model type. That way I can pick the right model for the task based on the data.

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