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REST APIs for IT Professionals — Course Assessment

9 questionsPassing score: 75%Related course: REST APIs for IT Professionals
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Original course questions with explained answers. This assessment is for learning; it does not predict certification exam results.

Free sample questions with explanations

Try these sample questions without an account. Choose your answer, then open the explanation. Sign in below to take the full scored test and save your result.

1. How many rows are in the sample across both pages?

  1. Three
  2. Two
  3. One
Show answer and explanation for question 1

Correct answer: A. Three

Two plus one equals three.

2. What should a throttled page become?

  1. An empty successful page
  2. A bounded retry or explicit incomplete result
  3. An infinite immediate retry
Show answer and explanation for question 2

Correct answer: B. A bounded retry or explicit incomplete result

Completeness must not be silently lost.

3. Which data should be excluded from debug output?

  1. Status category
  2. Accepted count
  3. Authorization token
Show answer and explanation for question 3

Correct answer: C. Authorization token

A token is a credential.

4. Page one returns HTTP 200, two items, next=page2 and total=3. Can a collector publish those two items as the completed inventory?

  1. No; follow approved pages and reconcile the terminal population.
  2. Yes, if the two item identities are unique.
  3. Yes, because HTTP 200 certifies complete collection.
Show answer and explanation for question 4

Correct answer: A. No; follow approved pages and reconcile the terminal population.

HTTP success for a page is not terminal collection. The collector must follow the next-link contract and verify the final count; otherwise a later report can invent absence findings for omitted records.

5. A 429 response requests a 30-second delay, but the example client has a five-second delay budget. What should it do?

  1. Immediately retry three times to obtain a success response.
  2. Stop with a clear budget limitation so scheduling policy can decide what happens next.
  3. Wait five seconds and retry sooner than requested.
Show answer and explanation for question 5

Correct answer: B. Stop with a clear budget limitation so scheduling policy can decide what happens next.

Capping a required supported delay downward would retry too soon. This small client refuses the long wait rather than pretending to support it. A scheduler or provider adapter can implement an approved deferral policy.

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