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DevNet Associate (DEVASC) 200-901 Practice Test 37

Question 360

The initial implementation fails or does not meet the expected behavior. An NX-OS automation uses a documented NX-API JSON command endpoint to retrieve VLAN status but assumes it has the same RESTCONF resource paths as IOS XE. Which investigation should be prioritized to diagnose the problem?

  1. Inspect device feature enablement, endpoint URI, NX-API payload and output structure.
  2. Inspect endpoint identifier, ISE authorization profile and network device enforcement logs.
  3. Inspect APIC EPG membership, applied contract and endpoint-to-endpoint test traffic.
  4. Inspect SDK reference, returned data type, target controller URL and auth context.

Explanation

Correct Answer

A:

Inspect device feature enablement, endpoint URI, NX-API payload and output structure. These are the relevant initial evidence checks for NX-OS NX-API JSON command output. Intended action: Send the documented NX-API request for the supported show operation and parse its JSON response. Expected success condition: The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs.

Incorrect Answers

B:

Inspect endpoint identifier, ISE authorization profile and network device enforcement logs. This investigation primarily applies to ISE endpoint policy and posture use, not the current NX-OS NX-API JSON command output problem. Prioritize: Inspect device feature enablement, endpoint URI, NX-API payload and output structure.

C:

Inspect APIC EPG membership, applied contract and endpoint-to-endpoint test traffic. This investigation primarily applies to ACI policy endpoint distinction, not the current NX-OS NX-API JSON command output problem. Prioritize: Inspect device feature enablement, endpoint URI, NX-API payload and output structure.

D:

Inspect SDK reference, returned data type, target controller URL and auth context. This investigation primarily applies to Catalyst Center SDK intent client, not the current NX-OS NX-API JSON command output problem. Prioritize: Inspect device feature enablement, endpoint URI, NX-API payload and output structure.

Question 361

A Cisco network automation team has this requirement: A new engineer needs to test configuration-changing scripts without risking production customer routers. Which design or implementation action best addresses it?

  1. Use the documented Catalyst Center site assignment workflow with the site and device identifiers.
  2. POST to the documented Webex messages endpoint with roomId and text in the required request payload.
  3. Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints.
  4. Address the correct keyed list instance and modify its intended leaf using the model-defined hierarchy.

Explanation

Correct Answer

C:

Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints. Technical reason: DevNet sandboxes provide controlled Cisco environments for experimentation and API development. Verify by: The test change runs in the sandbox and production inventory remains untouched. Deployment qualification: Some always-on sandboxes are shared and may be reset or rate-limited.

Incorrect Answers

A:

Use the documented Catalyst Center site assignment workflow with the site and device identifiers. This instead targets the different case Catalyst Center site hierarchy assignment. The described DevNet sandbox for destructive lab tests requirement specifically calls for Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints.

B:

POST to the documented Webex messages endpoint with roomId and text in the required request payload. This instead targets the different case Create Webex message in known space. The described DevNet sandbox for destructive lab tests requirement specifically calls for Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints.

D:

Address the correct keyed list instance and modify its intended leaf using the model-defined hierarchy. This instead targets the different case YANG leaf and list semantics. The described DevNet sandbox for destructive lab tests requirement specifically calls for Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints.

Question 362

After deployment, an engineer must prove the proposed solution works. A new engineer needs to test configuration-changing scripts without risking production customer routers. Which observed result is the most direct acceptance evidence?

  1. The new phone object is present in CUCM configuration and the change is auditable.
  2. The response contains client identifiers and last-seen data restricted to the intended network interval.
  3. The test change runs in the sandbox and production inventory remains untouched.
  4. A valid user lookup returns permitted user-device information without a configuration write.

Explanation

Correct Answer

C:

The test change runs in the sandbox and production inventory remains untouched. Recommended implementation: Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints. Why the observation matters: DevNet sandboxes provide controlled Cisco environments for experimentation and API development.

Incorrect Answers

A:

The new phone object is present in CUCM configuration and the change is auditable. That observation could confirm CUCM AXL controlled configuration update, not the current DevNet sandbox for destructive lab tests case. For this case, the decisive observation is: The test change runs in the sandbox and production inventory remains untouched.

B:

The response contains client identifiers and last-seen data restricted to the intended network interval. That observation could confirm Retrieve Meraki connected clients from network, not the current DevNet sandbox for destructive lab tests case. For this case, the decisive observation is: The test change runs in the sandbox and production inventory remains untouched.

D:

A valid user lookup returns permitted user-device information without a configuration write. That observation could confirm CUCM UDS directory lookup, not the current DevNet sandbox for destructive lab tests case. For this case, the decisive observation is: The test change runs in the sandbox and production inventory remains untouched.

Question 363

A developer is explaining the underlying technical behavior. A new engineer needs to test configuration-changing scripts without risking production customer routers. Which principle is most relevant to this case?

  1. DevNet sandboxes provide controlled Cisco environments for experimentation and API development.
  2. Meraki API resource scopes distinguish organizations, networks, devices and clients.
  3. Endpoint security telemetry concerns host activity and detections rather than firewall path configuration.
  4. RESTCONF represents modeled resources over HTTP with negotiated YANG-aware media types.

Explanation

Correct Answer

A:

DevNet sandboxes provide controlled Cisco environments for experimentation and API development. This mechanism explains DevNet sandbox for destructive lab tests. Action: Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints. Expected confirmation: The test change runs in the sandbox and production inventory remains untouched.

Incorrect Answers

B:

Meraki API resource scopes distinguish organizations, networks, devices and clients. This relates to Meraki organization versus device endpoint scope. In the current DevNet sandbox for destructive lab tests case the operative principle is: DevNet sandboxes provide controlled Cisco environments for experimentation and API development.

C:

Endpoint security telemetry concerns host activity and detections rather than firewall path configuration. This relates to Secure Endpoint host event triage. In the current DevNet sandbox for destructive lab tests case the operative principle is: DevNet sandboxes provide controlled Cisco environments for experimentation and API development.

D:

RESTCONF represents modeled resources over HTTP with negotiated YANG-aware media types. This relates to RESTCONF JSON representation header. In the current DevNet sandbox for destructive lab tests case the operative principle is: DevNet sandboxes provide controlled Cisco environments for experimentation and API development.

Question 364

A team does not apply the necessary control or correction. A new engineer needs to test configuration-changing scripts without risking production customer routers. Which resulting failure or risk is most directly relevant?

  1. Running unverified destructive calls on production can disrupt live services.
  2. Relying on CLI display formatting can break parsers after software changes.
  3. Retrying with a stale cached token indefinitely creates recurring authorization failures.
  4. A read-only directory lookup cannot create or update CUCM device configuration.

Explanation

Correct Answer

A:

Running unverified destructive calls on production can disrupt live services. This is the direct exposure for DevNet sandbox for destructive lab tests. Mitigate with: Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints. Check success by: The test change runs in the sandbox and production inventory remains untouched.

Incorrect Answers

B:

Relying on CLI display formatting can break parsers after software changes. This risk occurs in the different IOS XE RESTCONF operational interface state situation. For the given DevNet sandbox for destructive lab tests requirement, the directly relevant risk is: Running unverified destructive calls on production can disrupt live services.

C:

Retrying with a stale cached token indefinitely creates recurring authorization failures. This risk occurs in the different SDK authentication renewal situation. For the given DevNet sandbox for destructive lab tests requirement, the directly relevant risk is: Running unverified destructive calls on production can disrupt live services.

D:

A read-only directory lookup cannot create or update CUCM device configuration. This risk occurs in the different CUCM AXL controlled configuration update situation. For the given DevNet sandbox for destructive lab tests requirement, the directly relevant risk is: Running unverified destructive calls on production can disrupt live services.

Question 365

The initial implementation fails or does not meet the expected behavior. A new engineer needs to test configuration-changing scripts without risking production customer routers. Which investigation should be prioritized to diagnose the problem?

  1. Inspect room creation response, roomId in the message payload and message delivery response.
  2. Inspect CUCM service endpoints, identity permissions and UDS response structure.
  3. Inspect Accept, Content-Type, URL path and response code alongside API docs.
  4. Inspect sandbox reservation, access instructions and target hostnames in the script.

Explanation

Correct Answer

D:

Inspect sandbox reservation, access instructions and target hostnames in the script. These are the relevant initial evidence checks for DevNet sandbox for destructive lab tests. Intended action: Use an appropriate Cisco DevNet sandbox with authorized test accounts and documented lab constraints. Expected success condition: The test change runs in the sandbox and production inventory remains untouched.

Incorrect Answers

A:

Inspect room creation response, roomId in the message payload and message delivery response. This investigation primarily applies to Webex create space and send message, not the current DevNet sandbox for destructive lab tests problem. Prioritize: Inspect sandbox reservation, access instructions and target hostnames in the script.

B:

Inspect CUCM service endpoints, identity permissions and UDS response structure. This investigation primarily applies to CUCM UDS directory lookup, not the current DevNet sandbox for destructive lab tests problem. Prioritize: Inspect sandbox reservation, access instructions and target hostnames in the script.

C:

Inspect Accept, Content-Type, URL path and response code alongside API docs. This investigation primarily applies to RESTCONF JSON representation header, not the current DevNet sandbox for destructive lab tests problem. Prioritize: Inspect sandbox reservation, access instructions and target hostnames in the script.

Question 366

A Cisco network automation team has this requirement: A developer copies a community Cisco Code Exchange script for an obsolete API field and receives invalid-request errors. Which design or implementation action best addresses it?

  1. Verify endpoint, authentication and schema against current official API documentation before adapting the sample.
  2. Query the supported Secure Endpoint event API with host and time filters for threat events.
  3. Use supported Cisco ISE policy and endpoint APIs or integration to apply the intended authorization response.
  4. Use documented XDR incident APIs with approved scopes to retrieve correlated security context.

Explanation

Correct Answer

A:

Verify endpoint, authentication and schema against current official API documentation before adapting the sample. Technical reason: Code Exchange examples demonstrate patterns but API documentation defines the active request contract. Verify by: The revised call matches the published current schema and passes a controlled endpoint test. Deployment qualification: Community examples may require updated SDK dependencies and should not be blindly trusted.

Incorrect Answers

B:

Query the supported Secure Endpoint event API with host and time filters for threat events. This instead targets the different case Secure Endpoint host event triage. The described Choose API documentation over Code Exchange sample requirement specifically calls for Verify endpoint, authentication and schema against current official API documentation before adapting the sample.

C:

Use supported Cisco ISE policy and endpoint APIs or integration to apply the intended authorization response. This instead targets the different case ISE endpoint policy and posture use. The described Choose API documentation over Code Exchange sample requirement specifically calls for Verify endpoint, authentication and schema against current official API documentation before adapting the sample.

D:

Use documented XDR incident APIs with approved scopes to retrieve correlated security context. This instead targets the different case Cisco XDR incident context API. The described Choose API documentation over Code Exchange sample requirement specifically calls for Verify endpoint, authentication and schema against current official API documentation before adapting the sample.

Question 367

After deployment, an engineer must prove the proposed solution works. A developer copies a community Cisco Code Exchange script for an obsolete API field and receives invalid-request errors. Which observed result is the most direct acceptance evidence?

  1. A controlled test returns device IDs from the intended controller without a handcrafted token URL.
  2. A sample incident includes expected identifiers and linked evidence without HTML scraping.
  3. The response includes the organization's devices across its authorized networks, not only clients on one switch.
  4. The revised call matches the published current schema and passes a controlled endpoint test.

Explanation

Correct Answer

D:

The revised call matches the published current schema and passes a controlled endpoint test. Recommended implementation: Verify endpoint, authentication and schema against current official API documentation before adapting the sample. Why the observation matters: Code Exchange examples demonstrate patterns but API documentation defines the active request contract.

Incorrect Answers

A:

A controlled test returns device IDs from the intended controller without a handcrafted token URL. That observation could confirm Catalyst Center SDK intent client, not the current Choose API documentation over Code Exchange sample case. For this case, the decisive observation is: The revised call matches the published current schema and passes a controlled endpoint test.

B:

A sample incident includes expected identifiers and linked evidence without HTML scraping. That observation could confirm Cisco XDR incident context API, not the current Choose API documentation over Code Exchange sample case. For this case, the decisive observation is: The revised call matches the published current schema and passes a controlled endpoint test.

C:

The response includes the organization's devices across its authorized networks, not only clients on one switch. That observation could confirm Meraki organization versus device endpoint scope, not the current Choose API documentation over Code Exchange sample case. For this case, the decisive observation is: The revised call matches the published current schema and passes a controlled endpoint test.

Question 368

A developer is explaining the underlying technical behavior. A developer copies a community Cisco Code Exchange script for an obsolete API field and receives invalid-request errors. Which principle is most relevant to this case?

  1. SDK authentication helpers manage credential exchange but do not remove token expiry.
  2. IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping.
  3. Code Exchange examples demonstrate patterns but API documentation defines the active request contract.
  4. Intersight manages supported infrastructure resources through centrally exposed cloud APIs.

Explanation

Correct Answer

C:

Code Exchange examples demonstrate patterns but API documentation defines the active request contract. This mechanism explains Choose API documentation over Code Exchange sample. Action: Verify endpoint, authentication and schema against current official API documentation before adapting the sample. Expected confirmation: The revised call matches the published current schema and passes a controlled endpoint test.

Incorrect Answers

A:

SDK authentication helpers manage credential exchange but do not remove token expiry. This relates to SDK authentication renewal. In the current Choose API documentation over Code Exchange sample case the operative principle is: Code Exchange examples demonstrate patterns but API documentation defines the active request contract.

B:

IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping. This relates to IOS XE RESTCONF operational interface state. In the current Choose API documentation over Code Exchange sample case the operative principle is: Code Exchange examples demonstrate patterns but API documentation defines the active request contract.

D:

Intersight manages supported infrastructure resources through centrally exposed cloud APIs. This relates to Intersight inventory across remote UCS domains. In the current Choose API documentation over Code Exchange sample case the operative principle is: Code Exchange examples demonstrate patterns but API documentation defines the active request contract.

Question 369

A team does not apply the necessary control or correction. A developer copies a community Cisco Code Exchange script for an obsolete API field and receives invalid-request errors. Which resulting failure or risk is most directly relevant?

  1. Treating example code as a frozen specification can preserve deprecated endpoint assumptions.
  2. Treating a list as a scalar can overwrite the wrong modeled instance or produce schema errors.
  3. An incompatible Accept header can make an otherwise valid resource request fail.
  4. Confusing network-client records with organization-device inventory gives the wrong entity types.

Explanation

Correct Answer

A:

Treating example code as a frozen specification can preserve deprecated endpoint assumptions. This is the direct exposure for Choose API documentation over Code Exchange sample. Mitigate with: Verify endpoint, authentication and schema against current official API documentation before adapting the sample. Check success by: The revised call matches the published current schema and passes a controlled endpoint test.

Incorrect Answers

B:

Treating a list as a scalar can overwrite the wrong modeled instance or produce schema errors. This risk occurs in the different YANG leaf and list semantics situation. For the given Choose API documentation over Code Exchange sample requirement, the directly relevant risk is: Treating example code as a frozen specification can preserve deprecated endpoint assumptions.

C:

An incompatible Accept header can make an otherwise valid resource request fail. This risk occurs in the different RESTCONF JSON representation header situation. For the given Choose API documentation over Code Exchange sample requirement, the directly relevant risk is: Treating example code as a frozen specification can preserve deprecated endpoint assumptions.

D:

Confusing network-client records with organization-device inventory gives the wrong entity types. This risk occurs in the different Meraki organization versus device endpoint scope situation. For the given Choose API documentation over Code Exchange sample requirement, the directly relevant risk is: Treating example code as a frozen specification can preserve deprecated endpoint assumptions.

Question 370

The initial implementation fails or does not meet the expected behavior. A developer copies a community Cisco Code Exchange script for an obsolete API field and receives invalid-request errors. Which investigation should be prioritized to diagnose the problem?

  1. Compare sample dependencies, API docs version and actual request/response traces.
  2. Inspect Accept, Content-Type, URL path and response code alongside API docs.
  3. Inspect CUCM service endpoints, identity permissions and UDS response structure.
  4. Inspect SDK reference, returned data type, target controller URL and auth context.

Explanation

Correct Answer

A:

Compare sample dependencies, API docs version and actual request/response traces. These are the relevant initial evidence checks for Choose API documentation over Code Exchange sample. Intended action: Verify endpoint, authentication and schema against current official API documentation before adapting the sample. Expected success condition: The revised call matches the published current schema and passes a controlled endpoint test.

Incorrect Answers

B:

Inspect Accept, Content-Type, URL path and response code alongside API docs. This investigation primarily applies to RESTCONF JSON representation header, not the current Choose API documentation over Code Exchange sample problem. Prioritize: Compare sample dependencies, API docs version and actual request/response traces.

C:

Inspect CUCM service endpoints, identity permissions and UDS response structure. This investigation primarily applies to CUCM UDS directory lookup, not the current Choose API documentation over Code Exchange sample problem. Prioritize: Compare sample dependencies, API docs version and actual request/response traces.

D:

Inspect SDK reference, returned data type, target controller URL and auth context. This investigation primarily applies to Catalyst Center SDK intent client, not the current Choose API documentation over Code Exchange sample problem. Prioritize: Compare sample dependencies, API docs version and actual request/response traces.

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

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