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Exam Code: CAD

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Corresponding Certification: Certified Application Developer

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ServiceNow CAD Practice Test 53

Question 520

A developer proposes this approach: Use approved connection, credential or authentication management for the REST integration. Which business requirement is the strongest reason to choose it?

  1. An external supplier API needs an OAuth token and developers plan to paste it into script source.
  2. An outbound request returns HTTP 429 and the app currently records the shipment as delivered.
  3. A partner returns nested JSON with tracking IDs and status timestamps that differ from the target schema.
  4. A vendor needs an authorized HTTP endpoint to submit status callbacks into a scoped ServiceNow application.

Explanation

Correct Answer

A:

This business need directly motivates Use approved connection, credential or authentication management for the REST integration; Managed credentials avoid embedding reusable secrets in source-controlled application files.

Incorrect Answers

B:

The described situation is better addressed by Check response status and handle retryable errors with bounded backoff before persisting success. Transport-level failures should not be treated as confirmed business outcomes.

C:

The described situation is better addressed by Parse and validate the API response then map supported fields to the target record. Validated payload mapping translates an external response into the application's data model.

D:

The described situation is better addressed by Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes. A Scripted REST resource can expose controlled server behavior to authorized external clients.

Question 521

An outbound request returns HTTP 429 and the app currently records the shipment as delivered. Which application design or configuration action best addresses this requirement on the ServiceNow platform?

  1. Parse and validate the API response then map supported fields to the target record
  2. Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes
  3. Check response status and handle retryable errors with bounded backoff before persisting success
  4. Inspect the request method, URL, authentication configuration and REST execution logs

Explanation

Correct Answer

C:

Correct for REST response status handling: Transport-level failures should not be treated as confirmed business outcomes.

Incorrect Answers

A:

That action instead addresses Structured REST payload mapping. Validated payload mapping translates an external response into the application's data model. It does not directly fulfill the stated REST response status handling requirement.

B:

That action instead addresses Scripted inbound REST API. A Scripted REST resource can expose controlled server behavior to authorized external clients. It does not directly fulfill the stated REST response status handling requirement.

D:

That action instead addresses REST debugging evidence. End-to-end diagnostics distinguish authentication failures from schema or mapping errors. It does not directly fulfill the stated REST response status handling requirement.

Question 522

A developer applies this approach: Check response status and handle retryable errors with bounded backoff before persisting success. What platform behavior or outcome should be expected for the stated design?

  1. Validated payload mapping translates an external response into the application's data model.
  2. A Scripted REST resource can expose controlled server behavior to authorized external clients.
  3. End-to-end diagnostics distinguish authentication failures from schema or mapping errors.
  4. Transport-level failures should not be treated as confirmed business outcomes.

Explanation

Correct Answer

D:

The expected result for REST response status handling is: Transport-level failures should not be treated as confirmed business outcomes.

Incorrect Answers

A:

This describes Structured REST payload mapping and its associated action, Parse and validate the API response then map supported fields to the target record, rather than the consequence of the stated approach.

B:

This describes Scripted inbound REST API and its associated action, Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes, rather than the consequence of the stated approach.

C:

This describes REST debugging evidence and its associated action, Inspect the request method, URL, authentication configuration and REST execution logs, rather than the consequence of the stated approach.

Question 523

An outbound request returns HTTP 429 and the app currently records the shipment as delivered. A teammate suggests a different change: Parse and validate the API response then map supported fields to the target record. That change does not resolve the actual requirement. Which correction is most appropriate?

  1. Check response status and handle retryable errors with bounded backoff before persisting success
  2. Parse and validate the API response then map supported fields to the target record
  3. Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes
  4. Inspect the request method, URL, authentication configuration and REST execution logs

Explanation

Correct Answer

A:

Use the indicated corrective approach. Transport-level failures should not be treated as confirmed business outcomes. This meets the specific requirement for REST response status handling.

Incorrect Answers

B:

Not the appropriate correction: Parse and validate the API response then map supported fields to the target record is relevant to Structured REST payload mapping. Validated payload mapping translates an external response into the application's data model.

C:

Not the appropriate correction: Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes is relevant to Scripted inbound REST API. A Scripted REST resource can expose controlled server behavior to authorized external clients.

D:

Not the appropriate correction: Inspect the request method, URL, authentication configuration and REST execution logs is relevant to REST debugging evidence. End-to-end diagnostics distinguish authentication failures from schema or mapping errors.

Question 524

A developer proposes this approach: Check response status and handle retryable errors with bounded backoff before persisting success. Which business requirement is the strongest reason to choose it?

  1. A partner returns nested JSON with tracking IDs and status timestamps that differ from the target schema.
  2. An outbound request returns HTTP 429 and the app currently records the shipment as delivered.
  3. A vendor needs an authorized HTTP endpoint to submit status callbacks into a scoped ServiceNow application.
  4. A REST integration works in an API client but fails from the target instance with a 401 response.

Explanation

Correct Answer

B:

This business need directly motivates Check response status and handle retryable errors with bounded backoff before persisting success; Transport-level failures should not be treated as confirmed business outcomes.

Incorrect Answers

A:

The described situation is better addressed by Parse and validate the API response then map supported fields to the target record. Validated payload mapping translates an external response into the application's data model.

C:

The described situation is better addressed by Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes. A Scripted REST resource can expose controlled server behavior to authorized external clients.

D:

The described situation is better addressed by Inspect the request method, URL, authentication configuration and REST execution logs. End-to-end diagnostics distinguish authentication failures from schema or mapping errors.

Question 525

A partner returns nested JSON with tracking IDs and status timestamps that differ from the target schema. Which application design or configuration action best addresses this requirement on the ServiceNow platform?

  1. Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes
  2. Inspect the request method, URL, authentication configuration and REST execution logs
  3. Use a stable external event ID and a tested idempotent create-or-update strategy
  4. Parse and validate the API response then map supported fields to the target record

Explanation

Correct Answer

D:

Correct for Structured REST payload mapping: Validated payload mapping translates an external response into the application's data model.

Incorrect Answers

A:

That action instead addresses Scripted inbound REST API. A Scripted REST resource can expose controlled server behavior to authorized external clients. It does not directly fulfill the stated Structured REST payload mapping requirement.

B:

That action instead addresses REST debugging evidence. End-to-end diagnostics distinguish authentication failures from schema or mapping errors. It does not directly fulfill the stated Structured REST payload mapping requirement.

C:

That action instead addresses Idempotent external callbacks. Duplicate delivery should not create duplicate business side effects. It does not directly fulfill the stated Structured REST payload mapping requirement.

Question 526

A developer applies this approach: Parse and validate the API response then map supported fields to the target record. What platform behavior or outcome should be expected for the stated design?

  1. Validated payload mapping translates an external response into the application's data model.
  2. A Scripted REST resource can expose controlled server behavior to authorized external clients.
  3. End-to-end diagnostics distinguish authentication failures from schema or mapping errors.
  4. Duplicate delivery should not create duplicate business side effects.

Explanation

Correct Answer

A:

The expected result for Structured REST payload mapping is: Validated payload mapping translates an external response into the application's data model.

Incorrect Answers

B:

This describes Scripted inbound REST API and its associated action, Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes, rather than the consequence of the stated approach.

C:

This describes REST debugging evidence and its associated action, Inspect the request method, URL, authentication configuration and REST execution logs, rather than the consequence of the stated approach.

D:

This describes Idempotent external callbacks and its associated action, Use a stable external event ID and a tested idempotent create-or-update strategy, rather than the consequence of the stated approach.

Question 527

A partner returns nested JSON with tracking IDs and status timestamps that differ from the target schema. A teammate suggests a different change: Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes. That change does not resolve the actual requirement. Which correction is most appropriate?

  1. Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes
  2. Parse and validate the API response then map supported fields to the target record
  3. Inspect the request method, URL, authentication configuration and REST execution logs
  4. Use a stable external event ID and a tested idempotent create-or-update strategy

Explanation

Correct Answer

B:

Use the indicated corrective approach. Validated payload mapping translates an external response into the application's data model. This meets the specific requirement for Structured REST payload mapping.

Incorrect Answers

A:

Not the appropriate correction: Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes is relevant to Scripted inbound REST API. A Scripted REST resource can expose controlled server behavior to authorized external clients.

C:

Not the appropriate correction: Inspect the request method, URL, authentication configuration and REST execution logs is relevant to REST debugging evidence. End-to-end diagnostics distinguish authentication failures from schema or mapping errors.

D:

Not the appropriate correction: Use a stable external event ID and a tested idempotent create-or-update strategy is relevant to Idempotent external callbacks. Duplicate delivery should not create duplicate business side effects.

Question 528

A developer proposes this approach: Parse and validate the API response then map supported fields to the target record. Which business requirement is the strongest reason to choose it?

  1. A vendor needs an authorized HTTP endpoint to submit status callbacks into a scoped ServiceNow application.
  2. A REST integration works in an API client but fails from the target instance with a 401 response.
  3. A partner returns nested JSON with tracking IDs and status timestamps that differ from the target schema.
  4. A partner retries the same payment-status webhook and each retry currently creates another approval record.

Explanation

Correct Answer

C:

This business need directly motivates Parse and validate the API response then map supported fields to the target record; Validated payload mapping translates an external response into the application's data model.

Incorrect Answers

A:

The described situation is better addressed by Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes. A Scripted REST resource can expose controlled server behavior to authorized external clients.

B:

The described situation is better addressed by Inspect the request method, URL, authentication configuration and REST execution logs. End-to-end diagnostics distinguish authentication failures from schema or mapping errors.

D:

The described situation is better addressed by Use a stable external event ID and a tested idempotent create-or-update strategy. Duplicate delivery should not create duplicate business side effects.

Question 529

A vendor needs an authorized HTTP endpoint to submit status callbacks into a scoped ServiceNow application. Which application design or configuration action best addresses this requirement on the ServiceNow platform?

  1. Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes
  2. Inspect the request method, URL, authentication configuration and REST execution logs
  3. Use a stable external event ID and a tested idempotent create-or-update strategy
  4. Configure an outbound REST Message or supported REST action with the correct method and endpoint

Explanation

Correct Answer

A:

Correct for Scripted inbound REST API: A Scripted REST resource can expose controlled server behavior to authorized external clients.

Incorrect Answers

B:

That action instead addresses REST debugging evidence. End-to-end diagnostics distinguish authentication failures from schema or mapping errors. It does not directly fulfill the stated Scripted inbound REST API requirement.

C:

That action instead addresses Idempotent external callbacks. Duplicate delivery should not create duplicate business side effects. It does not directly fulfill the stated Scripted inbound REST API requirement.

D:

That action instead addresses Outbound REST Message. Outbound REST integration exchanges data with an external service over HTTP. It does not directly fulfill the stated Scripted inbound REST API requirement.

Question 530

A developer applies this approach: Implement a properly authenticated Scripted REST API with validated inputs and ACL-aware writes. What platform behavior or outcome should be expected for the stated design?

  1. End-to-end diagnostics distinguish authentication failures from schema or mapping errors.
  2. A Scripted REST resource can expose controlled server behavior to authorized external clients.
  3. Duplicate delivery should not create duplicate business side effects.
  4. Outbound REST integration exchanges data with an external service over HTTP.

Explanation

Correct Answer

B:

The expected result for Scripted inbound REST API is: A Scripted REST resource can expose controlled server behavior to authorized external clients.

Incorrect Answers

A:

This describes REST debugging evidence and its associated action, Inspect the request method, URL, authentication configuration and REST execution logs, rather than the consequence of the stated approach.

C:

This describes Idempotent external callbacks and its associated action, Use a stable external event ID and a tested idempotent create-or-update strategy, rather than the consequence of the stated approach.

D:

This describes Outbound REST Message and its associated action, Configure an outbound REST Message or supported REST action with the correct method and endpoint, rather than the consequence of the stated approach.