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 27

Question 260

The initial implementation fails or does not meet the expected behavior. A monitoring service offers an event stream for thousands of interface changes, but a team repeatedly requests full inventory snapshots for each update. Which investigation should be prioritized to diagnose the problem?

  1. Inspect subscription state, delivery logs, target URL and received event timestamp.
  2. Inspect page size, continuation token transitions, collected IDs and terminating response.
  3. Compare HTTP verb, required JSON schema and response status with the API reference.
  4. Inspect subscription offsets, event ordering and periodic snapshot reconciliation.

Explanation

Correct Answer

D:

Inspect subscription offsets, event ordering and periodic snapshot reconciliation. These are the relevant initial evidence checks for Event stream versus request-response polling. Intended action: Subscribe to the supported event channel and reconcile snapshots periodically for completeness. Expected success condition: Incremental changes arrive without one full-inventory HTTP request per event.

Incorrect Answers

A:

Inspect subscription state, delivery logs, target URL and received event timestamp. This investigation primarily applies to Webhook push instead of polling, not the current Event stream versus request-response polling problem. Prioritize: Inspect subscription offsets, event ordering and periodic snapshot reconciliation.

B:

Inspect page size, continuation token transitions, collected IDs and terminating response. This investigation primarily applies to Traverse cursor-based pagination, not the current Event stream versus request-response polling problem. Prioritize: Inspect subscription offsets, event ordering and periodic snapshot reconciliation.

C:

Compare HTTP verb, required JSON schema and response status with the API reference. This investigation primarily applies to POST creates an alarm subscription, not the current Event stream versus request-response polling problem. Prioritize: Inspect subscription offsets, event ordering and periodic snapshot reconciliation.

Question 261

A Cisco network automation team has this requirement: A Python script assembles an unescaped URL containing site names with spaces and calls requests.get without a timeout. Which design or implementation action best addresses it?

  1. Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status.
  2. Send GET /devices with site=west as a URL query parameter and the required authorization header.
  3. Issue DELETE for the verified unwanted subscription ID, using the documented authentication and method.
  4. Follow the documented cursor until no continuation token remains, combining validated pages.

Explanation

Correct Answer

A:

Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status. Technical reason: The requests library encodes query parameters and supports explicit connection/read time limits. Verify by: A site named West Campus is encoded correctly and failures produce bounded exceptions. Deployment qualification: Use documented endpoint paths and do not log authentication headers verbatim.

Incorrect Answers

B:

Send GET /devices with site=west as a URL query parameter and the required authorization header. This instead targets the different case GET filtered devices using query parameters. The described Use requests.get with params and timeout requirement specifically calls for Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status.

C:

Issue DELETE for the verified unwanted subscription ID, using the documented authentication and method. This instead targets the different case DELETE an obsolete webhook subscription. The described Use requests.get with params and timeout requirement specifically calls for Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status.

D:

Follow the documented cursor until no continuation token remains, combining validated pages. This instead targets the different case Traverse cursor-based pagination. The described Use requests.get with params and timeout requirement specifically calls for Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status.

Question 262

After deployment, an engineer must prove the proposed solution works. A Python script assembles an unescaped URL containing site names with spaces and calls requests.get without a timeout. Which observed result is the most direct acceptance evidence?

  1. A correctly signed fixture is accepted and a tampered body or invalid signature is rejected.
  2. A site named West Campus is encoded correctly and failures produce bounded exceptions.
  3. The workflow reports complete only after the job status becomes successful and device version is verified.
  4. The collector retrieves both pages while preserving resource objects from each valid response.

Explanation

Correct Answer

B:

A site named West Campus is encoded correctly and failures produce bounded exceptions. Recommended implementation: Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status. Why the observation matters: The requests library encodes query parameters and supports explicit connection/read time limits.

Incorrect Answers

A:

A correctly signed fixture is accepted and a tampered body or invalid signature is rejected. That observation could confirm Verify webhook signature on callback, not the current Use requests.get with params and timeout case. For this case, the decisive observation is: A site named West Campus is encoded correctly and failures produce bounded exceptions.

C:

The workflow reports complete only after the job status becomes successful and device version is verified. That observation could confirm Interpret 202 Accepted as asynchronous work, not the current Use requests.get with params and timeout case. For this case, the decisive observation is: A site named West Campus is encoded correctly and failures produce bounded exceptions.

D:

The collector retrieves both pages while preserving resource objects from each valid response. That observation could confirm Parse Link header for next page, not the current Use requests.get with params and timeout case. For this case, the decisive observation is: A site named West Campus is encoded correctly and failures produce bounded exceptions.

Question 263

A developer is explaining the underlying technical behavior. A Python script assembles an unescaped URL containing site names with spaces and calls requests.get without a timeout. Which principle is most relevant to this case?

  1. HTTP Basic encodes a username/password pair and requires TLS for confidentiality in transit.
  2. Headers convey protocol metadata while the body carries a representation of application data.
  3. 409 represents a request conflicting with current resource state, not a network outage.
  4. The requests library encodes query parameters and supports explicit connection/read time limits.

Explanation

Correct Answer

D:

The requests library encodes query parameters and supports explicit connection/read time limits. This mechanism explains Use requests.get with params and timeout. Action: Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status. Expected confirmation: A site named West Campus is encoded correctly and failures produce bounded exceptions.

Incorrect Answers

A:

HTTP Basic encodes a username/password pair and requires TLS for confidentiality in transit. This relates to Basic authentication for an approved legacy service. In the current Use requests.get with params and timeout case the operative principle is: The requests library encodes query parameters and supports explicit connection/read time limits.

B:

Headers convey protocol metadata while the body carries a representation of application data. This relates to Distinguish HTTP headers from response body. In the current Use requests.get with params and timeout case the operative principle is: The requests library encodes query parameters and supports explicit connection/read time limits.

C:

409 represents a request conflicting with current resource state, not a network outage. This relates to 409 Conflict on stale configuration revision. In the current Use requests.get with params and timeout case the operative principle is: The requests library encodes query parameters and supports explicit connection/read time limits.

Question 264

A team does not apply the necessary control or correction. A Python script assembles an unescaped URL containing site names with spaces and calls requests.get without a timeout. Which resulting failure or risk is most directly relevant?

  1. Unbounded waits can exhaust worker pools and delay unrelated automation jobs.
  2. Raw URL concatenation and infinite waits can produce wrong filters and stuck jobs.
  3. Aggressive retries amplify throttling and may lead to temporary API blocks.
  4. Granting administrator rights for a single denied method violates least privilege.

Explanation

Correct Answer

B:

Raw URL concatenation and infinite waits can produce wrong filters and stuck jobs. This is the direct exposure for Use requests.get with params and timeout. Mitigate with: Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status. Check success by: A site named West Campus is encoded correctly and failures produce bounded exceptions.

Incorrect Answers

A:

Unbounded waits can exhaust worker pools and delay unrelated automation jobs. This risk occurs in the different Control timeouts and retry budget situation. For the given Use requests.get with params and timeout requirement, the directly relevant risk is: Raw URL concatenation and infinite waits can produce wrong filters and stuck jobs.

C:

Aggressive retries amplify throttling and may lead to temporary API blocks. This risk occurs in the different Back off on API rate-limit response situation. For the given Use requests.get with params and timeout requirement, the directly relevant risk is: Raw URL concatenation and infinite waits can produce wrong filters and stuck jobs.

D:

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 Use requests.get with params and timeout requirement, the directly relevant risk is: Raw URL concatenation and infinite waits can produce wrong filters and stuck jobs.

Question 265

The initial implementation fails or does not meet the expected behavior. A Python script assembles an unescaped URL containing site names with spaces and calls requests.get without a timeout. Which investigation should be prioritized to diagnose the problem?

  1. Inspect request If-None-Match, response status and stored ETag/body pairing.
  2. Inspect prepared request URL, response status and simulated timeout handling.
  3. Inspect subscription state, delivery logs, target URL and received event timestamp.
  4. Inspect revision/ETag tokens, competing updates and the diff between desired and current state.

Explanation

Correct Answer

B:

Inspect prepared request URL, response status and simulated timeout handling. These are the relevant initial evidence checks for Use requests.get with params and timeout. Intended action: Call requests.get(url, params={"site":site}, headers=auth_headers, timeout=(3,10)) and check status. Expected success condition: A site named West Campus is encoded correctly and failures produce bounded exceptions.

Incorrect Answers

A:

Inspect request If-None-Match, response status and stored ETag/body pairing. This investigation primarily applies to Handle conditional GET with 304, not the current Use requests.get with params and timeout problem. Prioritize: Inspect prepared request URL, response status and simulated timeout handling.

C:

Inspect subscription state, delivery logs, target URL and received event timestamp. This investigation primarily applies to Webhook push instead of polling, not the current Use requests.get with params and timeout problem. Prioritize: Inspect prepared request URL, response status and simulated timeout handling.

D:

Inspect revision/ETag tokens, competing updates and the diff between desired and current state. This investigation primarily applies to 409 Conflict on stale configuration revision, not the current Use requests.get with params and timeout problem. Prioritize: Inspect prepared request URL, response status and simulated timeout handling.

Question 266

A Cisco network automation team has this requirement: A client calls requests.post(url, data=str(python_dict)) and the receiver reports malformed JSON. Which design or implementation action best addresses it?

  1. Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers.
  2. Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response.
  3. Revoke the exposed key, issue a new least-privilege key and move it to approved secret storage.
  4. Honor Retry-After or documented rate windows, applying bounded exponential backoff and jitter where appropriate.

Explanation

Correct Answer

A:

Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers. Technical reason: The json parameter serializes a Python object and sets the normal JSON content type. Verify by: The captured request body is valid JSON and the server recognizes its expected media type. Deployment qualification: The payload still requires schema validation and bounded request timeouts.

Incorrect Answers

B:

Construct the documented POST with JSON body, Content-Type and authentication, then inspect the creation response. This instead targets the different case POST creates an alarm subscription. The described Use requests.post json parameter requirement specifically calls for Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers.

C:

Revoke the exposed key, issue a new least-privilege key and move it to approved secret storage. This instead targets the different case Rotate a compromised API key. The described Use requests.post json parameter requirement specifically calls for Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers.

D:

Honor Retry-After or documented rate windows, applying bounded exponential backoff and jitter where appropriate. This instead targets the different case Back off on API rate-limit response. The described Use requests.post json parameter requirement specifically calls for Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers.

Question 267

After deployment, an engineer must prove the proposed solution works. A client calls requests.post(url, data=str(python_dict)) and the receiver reports malformed JSON. Which observed result is the most direct acceptance evidence?

  1. The caller obtains the server wait interval and parses the inventory JSON independently.
  2. The unwanted subscription no longer appears on list requests and duplicate events cease.
  3. The captured request body is valid JSON and the server recognizes its expected media type.
  4. A fixture of 240 clients produces exactly 240 unique IDs from three pages.

Explanation

Correct Answer

C:

The captured request body is valid JSON and the server recognizes its expected media type. Recommended implementation: Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers. Why the observation matters: The json parameter serializes a Python object and sets the normal JSON content type.

Incorrect Answers

A:

The caller obtains the server wait interval and parses the inventory JSON independently. That observation could confirm Distinguish HTTP headers from response body, not the current Use requests.post json parameter case. For this case, the decisive observation is: The captured request body is valid JSON and the server recognizes its expected media type.

B:

The unwanted subscription no longer appears on list requests and duplicate events cease. That observation could confirm DELETE an obsolete webhook subscription, not the current Use requests.post json parameter case. For this case, the decisive observation is: The captured request body is valid JSON and the server recognizes its expected media type.

D:

A fixture of 240 clients produces exactly 240 unique IDs from three pages. That observation could confirm Traverse cursor-based pagination, not the current Use requests.post json parameter case. For this case, the decisive observation is: The captured request body is valid JSON and the server recognizes its expected media type.

Question 268

A developer is explaining the underlying technical behavior. A client calls requests.post(url, data=str(python_dict)) and the receiver reports malformed JSON. Which principle is most relevant to this case?

  1. A documented GET query parameter belongs in the URL rather than an arbitrary request body.
  2. The json parameter serializes a Python object and sets the normal JSON content type.
  3. 304 Not Modified indicates the conditional cache validator remains valid rather than returning a new body.
  4. Revocation invalidates leaked bearer-equivalent credentials while secret storage reduces future exposure.

Explanation

Correct Answer

B:

The json parameter serializes a Python object and sets the normal JSON content type. This mechanism explains Use requests.post json parameter. Action: Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers. Expected confirmation: The captured request body is valid JSON and the server recognizes its expected media type.

Incorrect Answers

A:

A documented GET query parameter belongs in the URL rather than an arbitrary request body. This relates to GET filtered devices using query parameters. In the current Use requests.post json parameter case the operative principle is: The json parameter serializes a Python object and sets the normal JSON content type.

C:

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 Use requests.post json parameter case the operative principle is: The json parameter serializes a Python object and sets the normal JSON content type.

D:

Revocation invalidates leaked bearer-equivalent credentials while secret storage reduces future exposure. This relates to Rotate a compromised API key. In the current Use requests.post json parameter case the operative principle is: The json parameter serializes a Python object and sets the normal JSON content type.

Question 269

A team does not apply the necessary control or correction. A client calls requests.post(url, data=str(python_dict)) and the receiver reports malformed JSON. Which resulting failure or risk is most directly relevant?

  1. Python's dict string uses single quotes and is not valid JSON serialization.
  2. Changing device routes will not resolve an expired access token.
  3. Blind JSON parsing on an empty success response creates a false error condition.
  4. High-frequency polling can exhaust quotas while still missing short-lived state changes.

Explanation

Correct Answer

A:

Python's dict string uses single quotes and is not valid JSON serialization. This is the direct exposure for Use requests.post json parameter. Mitigate with: Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers. Check success by: The captured request body is valid JSON and the server recognizes its expected media type.

Incorrect Answers

B:

Changing device routes will not resolve an expired access token. This risk occurs in the different 401 Unauthorized on expired bearer token situation. For the given Use requests.post json parameter requirement, the directly relevant risk is: Python's dict string uses single quotes and is not valid JSON serialization.

C:

Blind JSON parsing on an empty success response creates a false error condition. This risk occurs in the different Interpret 204 No Content situation. For the given Use requests.post json parameter requirement, the directly relevant risk is: Python's dict string uses single quotes and is not valid JSON serialization.

D:

High-frequency polling can exhaust quotas while still missing short-lived state changes. This risk occurs in the different Event stream versus request-response polling situation. For the given Use requests.post json parameter requirement, the directly relevant risk is: Python's dict string uses single quotes and is not valid JSON serialization.

Question 270

The initial implementation fails or does not meet the expected behavior. A client calls requests.post(url, data=str(python_dict)) and the receiver reports malformed JSON. Which investigation should be prioritized to diagnose the problem?

  1. Inspect response code, Location header and the newly created object's identifier.
  2. Inspect identity, role assignments, method-specific permissions and server authorization logs.
  3. Inspect connect/read timeout configuration, exception handling and total retry elapsed time.
  4. Inspect outbound bytes, Content-Type and the server's validation response.

Explanation

Correct Answer

D:

Inspect outbound bytes, Content-Type and the server's validation response. These are the relevant initial evidence checks for Use requests.post json parameter. Intended action: Supply a JSON-serializable mapping through requests.post(..., json=payload) with the required headers. Expected success condition: The captured request body is valid JSON and the server recognizes its expected media type.

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 Use requests.post json parameter problem. Prioritize: Inspect outbound bytes, Content-Type and the server's validation response.

B:

Inspect identity, role assignments, method-specific permissions and server authorization logs. This investigation primarily applies to 403 Forbidden despite valid authentication, not the current Use requests.post json parameter problem. Prioritize: Inspect outbound bytes, Content-Type and the server's validation response.

C:

Inspect connect/read timeout configuration, exception handling and total retry elapsed time. This investigation primarily applies to Control timeouts and retry budget, not the current Use requests.post json parameter problem. Prioritize: Inspect outbound bytes, Content-Type and the server's validation response.

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