DP-100 Free Practice Test

- (Exam Topic 1)
You need to implement a new cost factor scenario for the ad response models as illustrated in the performance curve exhibit.
Which technique should you use?

1. A. Set the threshold to 0.5 and retrain if weighted Kappa deviates +/- 5% from 0.45.
2. B. Set the threshold to 0.05 and retrain if weighted Kappa deviates +/- 5% from 0.5.
3. C. Set the threshold to 0.2 and retrain if weighted Kappa deviates +/- 5% from 0.6.
4. D. Set the threshold to 0.75 and retrain if weighted Kappa deviates +/- 5% from 0.15.

Correct Answer: A

Scenario:
Performance curves of current and proposed cost factor scenarios are shown in the following diagram:
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- (Exam Topic 3)
You are performing clustering by using the K-means algorithm. You need to define the possible termination conditions.
Which three conditions can you use? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

1. A. A fixed number of iterations is executed.
2. B. The residual sum of squares (RSS) rises above a threshold.
3. C. The sum of distances between centroids reaches a maximum.
4. D. The residual sum of squares (RSS) falls below a threshold.
5. E. Centroids do not change between iterations.

Correct Answer: ADE
References:
https://docs.microsoft.com/en-us/azure/machine-learning/studio-module-reference/k-means-clustering https://nlp.stanford.edu/IR-book/html/htmledition/k-means-1.html