Pass Cisco DEVASC 200-901 Exam in First Attempt Easily
Real Cisco DEVASC 200-901 Exam Questions, Accurate & Verified Answers As Experienced in the Actual Test!

Verified by experts
3 products

You save $69.98

200-901 Premium Bundle

  • Premium File 431 Questions & Answers
  • Last Update: Nov 9, 2026
  • Training Course 11 Lectures
  • Study Guide 1212 Pages
$79.99 $149.97

Purchase Individually

  • Premium File

    431 Questions & Answers
    Last Update: Nov 9, 2026

    $76.99
    $69.99
  • Training Course

    11 Lectures

    $43.99
    $39.99
  • Study Guide

    1212 Pages

    $43.99
    $39.99

DevNet Associate (DEVASC) 200-901 Practice Test 13

Question 120

The initial implementation fails or does not meet the expected behavior. A pull request claims to update only timeout settings, but reviewers suspect the authentication method was also changed. Which investigation should be prioritized to diagnose the problem?

  1. Inspect git log, commit hashes and the changed lines for the rule generator.
  2. Inspect test assertions, initial failing run and subsequent focused passing run.
  3. Check parsed types with isinstance and compare raw payload versus loaded object.
  4. Inspect the exact diff range, commit set and tests covering changed behavior.

Explanation

Correct Answer

D:

Inspect the exact diff range, commit set and tests covering changed behavior. These are the relevant initial evidence checks for Use git diff before reviewing an endpoint change. Intended action: Compare the proposed branch against the approved base with git diff to identify all altered lines. Expected success condition: The reviewed diff lists both timeout edits and any header or credential changes.

Incorrect Answers

A:

Inspect git log, commit hashes and the changed lines for the rule generator. This investigation primarily applies to Git history for configuration rollback, not the current Use git diff before reviewing an endpoint change problem. Prioritize: Inspect the exact diff range, commit set and tests covering changed behavior.

B:

Inspect test assertions, initial failing run and subsequent focused passing run. This investigation primarily applies to Write a failing test before implementation, not the current Use git diff before reviewing an endpoint change problem. Prioritize: Inspect the exact diff range, commit set and tests covering changed behavior.

C:

Check parsed types with isinstance and compare raw payload versus loaded object. This investigation primarily applies to Preserve numeric and boolean data types, not the current Use git diff before reviewing an endpoint change problem. Prioritize: Inspect the exact diff range, commit set and tests covering changed behavior.

Question 121

A Cisco network automation team has this requirement: A controller documents GET /devices?site=west for retrieving inventory, but a script tries to put the site filter in a GET JSON body. Which design or implementation action best addresses it?

  1. Send GET /devices with site=west as a URL query parameter and the required authorization header.
  2. Serialize the payload as valid JSON and set the required application/json Content-Type header.
  3. Check Content-Type and validate payload structure before consuming it as the expected API representation.
  4. Refresh or replace the expired credential through the approved authentication flow before retrying the same permitted request.

Explanation

Correct Answer

A:

Send GET /devices with site=west as a URL query parameter and the required authorization header. Technical reason: A documented GET query parameter belongs in the URL rather than an arbitrary request body. Verify by: The mock service returns only devices at the west site and the captured query string contains site=west. Deployment qualification: Encode special characters in query values instead of concatenating unescaped strings.

Incorrect Answers

B:

Serialize the payload as valid JSON and set the required application/json Content-Type header. This instead targets the different case 415 Unsupported Media Type on JSON endpoint. The described GET filtered devices using query parameters requirement specifically calls for Send GET /devices with site=west as a URL query parameter and the required authorization header.

C:

Check Content-Type and validate payload structure before consuming it as the expected API representation. This instead targets the different case Content-Type guards JSON parsing. The described GET filtered devices using query parameters requirement specifically calls for Send GET /devices with site=west as a URL query parameter and the required authorization header.

D:

Refresh or replace the expired credential through the approved authentication flow before retrying the same permitted request. This instead targets the different case 401 Unauthorized on expired bearer token. The described GET filtered devices using query parameters requirement specifically calls for Send GET /devices with site=west as a URL query parameter and the required authorization header.

Question 122

After deployment, an engineer must prove the proposed solution works. A controller documents GET /devices?site=west for retrieving inventory, but a script tries to put the site filter in a GET JSON body. Which observed result is the most direct acceptance evidence?

  1. A site named West Campus is encoded correctly and failures produce bounded exceptions.
  2. The mock service returns only devices at the west site and the captured query string contains site=west.
  3. Network logs show no credential in the request URL and authenticated calls still succeed.
  4. Incremental changes arrive without one full-inventory HTTP request per event.

Explanation

Correct Answer

B:

The mock service returns only devices at the west site and the captured query string contains site=west. Recommended implementation: Send GET /devices with site=west as a URL query parameter and the required authorization header. Why the observation matters: A documented GET query parameter belongs in the URL rather than an arbitrary request body.

Incorrect Answers

A:

A site named West Campus is encoded correctly and failures produce bounded exceptions. That observation could confirm Use requests.get with params and timeout, not the current GET filtered devices using query parameters case. For this case, the decisive observation is: The mock service returns only devices at the west site and the captured query string contains site=west.

C:

Network logs show no credential in the request URL and authenticated calls still succeed. That observation could confirm Bearer token separation from query string, not the current GET filtered devices using query parameters case. For this case, the decisive observation is: The mock service returns only devices at the west site and the captured query string contains site=west.

D:

Incremental changes arrive without one full-inventory HTTP request per event. That observation could confirm Event stream versus request-response polling, not the current GET filtered devices using query parameters case. For this case, the decisive observation is: The mock service returns only devices at the west site and the captured query string contains site=west.

Question 123

A developer is explaining the underlying technical behavior. A controller documents GET /devices?site=west for retrieving inventory, but a script tries to put the site filter in a GET JSON body. Which principle is most relevant to this case?

  1. 304 Not Modified indicates the conditional cache validator remains valid rather than returning a new body.
  2. A documented GET query parameter belongs in the URL rather than an arbitrary request body.
  3. HTTP Link headers can advertise pagination relations independently of the response body.
  4. Asynchronous processing decouples fast event delivery acknowledgement from slow business tasks.

Explanation

Correct Answer

B:

A documented GET query parameter belongs in the URL rather than an arbitrary request body. This mechanism explains GET filtered devices using query parameters. Action: Send GET /devices with site=west as a URL query parameter and the required authorization header. Expected confirmation: The mock service returns only devices at the west site and the captured query string contains site=west.

Incorrect Answers

A:

304 Not Modified indicates the conditional cache validator remains valid rather than returning a new body. This relates to Handle conditional GET with 304. In the current GET filtered devices using query parameters case the operative principle is: A documented GET query parameter belongs in the URL rather than an arbitrary request body.

C:

HTTP Link headers can advertise pagination relations independently of the response body. This relates to Parse Link header for next page. In the current GET filtered devices using query parameters case the operative principle is: A documented GET query parameter belongs in the URL rather than an arbitrary request body.

D:

Asynchronous processing decouples fast event delivery acknowledgement from slow business tasks. This relates to Acknowledge webhook quickly and queue work. In the current GET filtered devices using query parameters case the operative principle is: A documented GET query parameter belongs in the URL rather than an arbitrary request body.

Question 124

A team does not apply the necessary control or correction. A controller documents GET /devices?site=west for retrieving inventory, but a script tries to put the site filter in a GET JSON body. Which resulting failure or risk is most directly relevant?

  1. Searching for headers inside the body can hide rate limits and trigger unnecessary requests.
  2. The filter can be ignored when the server does not support GET bodies for that endpoint.
  3. Broad except:pass logic can conceal genuine outages and report success.
  4. Putting Basic credentials in a URL leaks them through browser and proxy histories.

Explanation

Correct Answer

B:

The filter can be ignored when the server does not support GET bodies for that endpoint. This is the direct exposure for GET filtered devices using query parameters. Mitigate with: Send GET /devices with site=west as a URL query parameter and the required authorization header. Check success by: The mock service returns only devices at the west site and the captured query string contains site=west.

Incorrect Answers

A:

Searching for headers inside the body can hide rate limits and trigger unnecessary requests. This risk occurs in the different Distinguish HTTP headers from response body situation. For the given GET filtered devices using query parameters requirement, the directly relevant risk is: The filter can be ignored when the server does not support GET bodies for that endpoint.

C:

Broad except:pass logic can conceal genuine outages and report success. This risk occurs in the different Catch RequestException without hiding failures situation. For the given GET filtered devices using query parameters requirement, the directly relevant risk is: The filter can be ignored when the server does not support GET bodies for that endpoint.

D:

Putting Basic credentials in a URL leaks them through browser and proxy histories. This risk occurs in the different Basic authentication for an approved legacy service situation. For the given GET filtered devices using query parameters requirement, the directly relevant risk is: The filter can be ignored when the server does not support GET bodies for that endpoint.

Question 125

The initial implementation fails or does not meet the expected behavior. A controller documents GET /devices?site=west for retrieving inventory, but a script tries to put the site filter in a GET JSON body. Which investigation should be prioritized to diagnose the problem?

  1. Inspect response code, Location header and the newly created object's identifier.
  2. Inspect WWW-Authenticate details, token expiry and secret rotation logs.
  3. Inspect the endpoint's parameter location and the actual URL captured in request logs.
  4. Inspect exception type, logger output and health-check return path under injected faults.

Explanation

Correct Answer

C:

Inspect the endpoint's parameter location and the actual URL captured in request logs. These are the relevant initial evidence checks for GET filtered devices using query parameters. Intended action: Send GET /devices with site=west as a URL query parameter and the required authorization header. Expected success condition: The mock service returns only devices at the west site and the captured query string contains site=west.

Incorrect Answers

A:

Inspect response code, Location header and the newly created object's identifier. This investigation primarily applies to Interpret 201 Created on POST, not the current GET filtered devices using query parameters problem. Prioritize: Inspect the endpoint's parameter location and the actual URL captured in request logs.

B:

Inspect WWW-Authenticate details, token expiry and secret rotation logs. This investigation primarily applies to 401 Unauthorized on expired bearer token, not the current GET filtered devices using query parameters problem. Prioritize: Inspect the endpoint's parameter location and the actual URL captured in request logs.

D:

Inspect exception type, logger output and health-check return path under injected faults. This investigation primarily applies to Catch RequestException without hiding failures, not the current GET filtered devices using query parameters problem. Prioritize: Inspect the endpoint's parameter location and the actual URL captured in request logs.

Question 126

A Cisco network automation team has this requirement: An alert API documents POST /subscriptions with JSON fields endpoint and eventTypes, but the client issues GET and expects a new subscription. Which design or implementation action best addresses it?

  1. Serialize the payload as valid JSON and set the required application/json Content-Type header.
  2. Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response.
  3. Validate the provider's documented shared-secret signature over the received request body before processing the event.
  4. Send the required Basic authorization credentials through the HTTP client's supported auth interface over verified HTTPS.

Explanation

Correct Answer

B:

Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response. Technical reason: POST commonly submits a representation to create or process a resource under the target collection. Verify by: The service returns a newly created subscription identifier and a matching stored event filter. Deployment qualification: Repeat attempts must consider duplicate subscriptions or idempotency keys as documented.

Incorrect Answers

A:

Serialize the payload as valid JSON and set the required application/json Content-Type header. This instead targets the different case 415 Unsupported Media Type on JSON endpoint. The described POST creates an alarm subscription requirement specifically calls for Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response.

C:

Validate the provider's documented shared-secret signature over the received request body before processing the event. This instead targets the different case Verify webhook signature on callback. The described POST creates an alarm subscription requirement specifically calls for Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response.

D:

Send the required Basic authorization credentials through the HTTP client's supported auth interface over verified HTTPS. This instead targets the different case Basic authentication for an approved legacy service. The described POST creates an alarm subscription requirement specifically calls for Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response.

Question 127

After deployment, an engineer must prove the proposed solution works. An alert API documents POST /subscriptions with JSON fields endpoint and eventTypes, but the client issues GET and expects a new subscription. Which observed result is the most direct acceptance evidence?

  1. The service returns a newly created subscription identifier and a matching stored event filter.
  2. The old key fails authentication and the service succeeds with the replacement through a secret reference.
  3. A site named West Campus is encoded correctly and failures produce bounded exceptions.
  4. Repeated calls reuse eligible connections while an untrusted certificate is still rejected.

Explanation

Correct Answer

A:

The service returns a newly created subscription identifier and a matching stored event filter. Recommended implementation: Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response. Why the observation matters: POST commonly submits a representation to create or process a resource under the target collection.

Incorrect Answers

B:

The old key fails authentication and the service succeeds with the replacement through a secret reference. That observation could confirm Rotate a compromised API key, not the current POST creates an alarm subscription case. For this case, the decisive observation is: The service returns a newly created subscription identifier and a matching stored event filter.

C:

A site named West Campus is encoded correctly and failures produce bounded exceptions. That observation could confirm Use requests.get with params and timeout, not the current POST creates an alarm subscription case. For this case, the decisive observation is: The service returns a newly created subscription identifier and a matching stored event filter.

D:

Repeated calls reuse eligible connections while an untrusted certificate is still rejected. That observation could confirm Reuse requests Session with certificate verification, not the current POST creates an alarm subscription case. For this case, the decisive observation is: The service returns a newly created subscription identifier and a matching stored event filter.

Question 128

A developer is explaining the underlying technical behavior. An alert API documents POST /subscriptions with JSON fields endpoint and eventTypes, but the client issues GET and expects a new subscription. Which principle is most relevant to this case?

  1. 401 indicates missing or invalid authentication credentials for the requested resource.
  2. 201 signals creation, not a server-side failure.
  3. POST commonly submits a representation to create or process a resource under the target collection.
  4. Revocation invalidates leaked bearer-equivalent credentials while secret storage reduces future exposure.

Explanation

Correct Answer

C:

POST commonly submits a representation to create or process a resource under the target collection. This mechanism explains POST creates an alarm subscription. Action: Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response. Expected confirmation: The service returns a newly created subscription identifier and a matching stored event filter.

Incorrect Answers

A:

401 indicates missing or invalid authentication credentials for the requested resource. This relates to 401 Unauthorized on expired bearer token. In the current POST creates an alarm subscription case the operative principle is: POST commonly submits a representation to create or process a resource under the target collection.

B:

201 signals creation, not a server-side failure. This relates to Interpret 201 Created on POST. In the current POST creates an alarm subscription case the operative principle is: POST commonly submits a representation to create or process a resource under the target collection.

D:

Revocation invalidates leaked bearer-equivalent credentials while secret storage reduces future exposure. This relates to Rotate a compromised API key. In the current POST creates an alarm subscription case the operative principle is: POST commonly submits a representation to create or process a resource under the target collection.

Question 129

A team does not apply the necessary control or correction. An alert API documents POST /subscriptions with JSON fields endpoint and eventTypes, but the client issues GET and expects a new subscription. Which resulting failure or risk is most directly relevant?

  1. Granting administrator rights for a single denied method violates least privilege.
  2. Using GET for a state-changing create operation violates method semantics and may do nothing.
  3. Broad except:pass logic can conceal genuine outages and report success.
  4. Unauthenticated callbacks permit forged incidents or unauthorized bot operations.

Explanation

Correct Answer

B:

Using GET for a state-changing create operation violates method semantics and may do nothing. This is the direct exposure for POST creates an alarm subscription. Mitigate with: Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response. Check success by: The service returns a newly created subscription identifier and a matching stored event filter.

Incorrect Answers

A:

Granting administrator rights for a single denied method violates least privilege. This risk occurs in the different 403 Forbidden despite valid authentication situation. For the given POST creates an alarm subscription requirement, the directly relevant risk is: Using GET for a state-changing create operation violates method semantics and may do nothing.

C:

Broad except:pass logic can conceal genuine outages and report success. This risk occurs in the different Catch RequestException without hiding failures situation. For the given POST creates an alarm subscription requirement, the directly relevant risk is: Using GET for a state-changing create operation violates method semantics and may do nothing.

D:

Unauthenticated callbacks permit forged incidents or unauthorized bot operations. This risk occurs in the different Verify webhook signature on callback situation. For the given POST creates an alarm subscription requirement, the directly relevant risk is: Using GET for a state-changing create operation violates method semantics and may do nothing.

Question 130

The initial implementation fails or does not meet the expected behavior. An alert API documents POST /subscriptions with JSON fields endpoint and eventTypes, but the client issues GET and expects a new subscription. Which investigation should be prioritized to diagnose the problem?

  1. Inspect raw response status line, headers and JSON payload separately.
  2. Compare HTTP verb, required JSON schema and response status with the API reference.
  3. Inspect page size, continuation token transitions, collected IDs and terminating response.
  4. Inspect exception type, logger output and health-check return path under injected faults.

Explanation

Correct Answer

B:

Compare HTTP verb, required JSON schema and response status with the API reference. These are the relevant initial evidence checks for POST creates an alarm subscription. Intended action: Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response. Expected success condition: The service returns a newly created subscription identifier and a matching stored event filter.

Incorrect Answers

A:

Inspect raw response status line, headers and JSON payload separately. This investigation primarily applies to Distinguish HTTP headers from response body, not the current POST creates an alarm subscription problem. Prioritize: Compare HTTP verb, required JSON schema and response status with the API reference.

C:

Inspect page size, continuation token transitions, collected IDs and terminating response. This investigation primarily applies to Traverse cursor-based pagination, not the current POST creates an alarm subscription problem. Prioritize: Compare HTTP verb, required JSON schema and response status with the API reference.

D:

Inspect exception type, logger output and health-check return path under injected faults. This investigation primarily applies to Catch RequestException without hiding failures, not the current POST creates an alarm subscription problem. Prioritize: Compare HTTP verb, required JSON schema and response status with the API reference.

DevNet Associate (DEVASC) (200-901) Practice Tests

Purchase Individually

  • Premium File

    431 Questions & Answers
    Last Update: Nov 9, 2026

    $76.99
    $69.99
  • Training Course

    11 Lectures

    $43.99
    $39.99
  • Study Guide

    1212 Pages

    $43.99
    $39.99

SPECIAL OFFER: GET 10% OFF
This is ONE TIME OFFER

You save
10%

Enter Your Email Address to Receive Your 10% Off Discount Code

SPECIAL OFFER: GET 10% OFF

You save
10%

Use Discount Code:

A confirmation link was sent to your e-mail.

Please check your mailbox for a message from support@examlabs.com and follow the directions.

Download Free Demo of VCE Exam Simulator

Experience Avanset VCE Exam Simulator for yourself.

Simply submit your email address below to get started with our interactive software demo of your free trial.

  • Realistic exam simulation and exam editor with preview functions
  • Whole exam in a single file with several different question types
  • Customizable exam-taking mode & detailed score reports