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DevNet Associate (DEVASC) 200-901 Practice Test 36

Question 350

The initial implementation fails or does not meet the expected behavior. A responder must list recent malware detections on a particular enrolled host; an integration requests generic firewall traffic rules instead. Which investigation should be prioritized to diagnose the problem?

  1. Inspect host GUID, event type, time filter and API response details.
  2. Inspect Accept, Content-Type, URL path and response code alongside API docs.
  3. Inspect endpoint path, auth token exchange, pagination and device response fields.
  4. Inspect site ID, device UUID, assignment task status and resulting inventory record.

Explanation

Correct Answer

A:

Inspect host GUID, event type, time filter and API response details. These are the relevant initial evidence checks for Secure Endpoint host event triage. Intended action: Query the supported Secure Endpoint event API with host and time filters for threat events. Expected success condition: The returned detections reference the intended endpoint and interval while unrelated hosts are excluded.

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 Secure Endpoint host event triage problem. Prioritize: Inspect host GUID, event type, time filter and API response details.

C:

Inspect endpoint path, auth token exchange, pagination and device response fields. This investigation primarily applies to Get device inventory from Catalyst Center, not the current Secure Endpoint host event triage problem. Prioritize: Inspect host GUID, event type, time filter and API response details.

D:

Inspect site ID, device UUID, assignment task status and resulting inventory record. This investigation primarily applies to Catalyst Center site hierarchy assignment, not the current Secure Endpoint host event triage problem. Prioritize: Inspect host GUID, event type, time filter and API response details.

Question 351

A Cisco network automation team has this requirement: A management utility needs read-only interface operational status from IOS XE, but a colleague proposes parsing arbitrary terminal screen output. Which design or implementation action best addresses it?

  1. Use the documented Catalyst Center site assignment workflow with the site and device identifiers.
  2. Invoke the documented SDK device-client list method with its supported pagination arguments and collect all returned pages.
  3. Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header.
  4. Call the documented organization device inventory endpoint using the verified organization identifier.

Explanation

Correct Answer

C:

Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header. Technical reason: IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping. Verify by: A GET returns structured interface counters or state data matching the selected model. Deployment qualification: RESTCONF must be enabled and authorized on the device and model support confirmed.

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 IOS XE RESTCONF operational interface state requirement specifically calls for Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header.

B:

Invoke the documented SDK device-client list method with its supported pagination arguments and collect all returned pages. This instead targets the different case Use supported Meraki SDK pagination helper. The described IOS XE RESTCONF operational interface state requirement specifically calls for Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header.

D:

Call the documented organization device inventory endpoint using the verified organization identifier. This instead targets the different case Meraki organization versus device endpoint scope. The described IOS XE RESTCONF operational interface state requirement specifically calls for Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header.

Question 352

After deployment, an engineer must prove the proposed solution works. A management utility needs read-only interface operational status from IOS XE, but a colleague proposes parsing arbitrary terminal screen output. Which observed result is the most direct acceptance evidence?

  1. A GET returns structured interface counters or state data matching the selected model.
  2. A successful RPC reply is followed by a get-config showing the updated description.
  3. The target space contains one new message from the authorized integration.
  4. The response includes the organization's devices across its authorized networks, not only clients on one switch.

Explanation

Correct Answer

A:

A GET returns structured interface counters or state data matching the selected model. Recommended implementation: Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header. Why the observation matters: IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping.

Incorrect Answers

B:

A successful RPC reply is followed by a get-config showing the updated description. That observation could confirm NETCONF edit-config transaction, not the current IOS XE RESTCONF operational interface state case. For this case, the decisive observation is: A GET returns structured interface counters or state data matching the selected model.

C:

The target space contains one new message from the authorized integration. That observation could confirm Create Webex message in known space, not the current IOS XE RESTCONF operational interface state case. For this case, the decisive observation is: A GET returns structured interface counters or state data matching the selected model.

D:

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 IOS XE RESTCONF operational interface state case. For this case, the decisive observation is: A GET returns structured interface counters or state data matching the selected model.

Question 353

A developer is explaining the underlying technical behavior. A management utility needs read-only interface operational status from IOS XE, but a colleague proposes parsing arbitrary terminal screen output. Which principle is most relevant to this case?

  1. Endpoint security telemetry concerns host activity and detections rather than firewall path configuration.
  2. IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping.
  3. Meraki API resource scopes distinguish organizations, networks, devices and clients.
  4. Client-observation endpoints report attached endpoints, not the controller's switch/router inventory.

Explanation

Correct Answer

B:

IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping. This mechanism explains IOS XE RESTCONF operational interface state. Action: Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header. Expected confirmation: A GET returns structured interface counters or state data matching the selected model.

Incorrect Answers

A:

Endpoint security telemetry concerns host activity and detections rather than firewall path configuration. This relates to Secure Endpoint host event triage. In the current IOS XE RESTCONF operational interface state case the operative principle is: IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping.

C:

Meraki API resource scopes distinguish organizations, networks, devices and clients. This relates to Meraki organization versus device endpoint scope. In the current IOS XE RESTCONF operational interface state case the operative principle is: IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping.

D:

Client-observation endpoints report attached endpoints, not the controller's switch/router inventory. This relates to Retrieve Meraki connected clients from network. In the current IOS XE RESTCONF operational interface state case the operative principle is: IOS XE RESTCONF exposes model-driven data via HTTP resources rather than terminal screen scraping.

Question 354

A team does not apply the necessary control or correction. A management utility needs read-only interface operational status from IOS XE, but a colleague proposes parsing arbitrary terminal screen output. Which resulting failure or risk is most directly relevant?

  1. Reimplementing undocumented URL patterns can silently omit pages after platform changes.
  2. Relying on CLI display formatting can break parsers after software changes.
  3. Confusing network-client records with organization-device inventory gives the wrong entity types.
  4. Using a provisioning interface for directory lookups increases privilege and change risk.

Explanation

Correct Answer

B:

Relying on CLI display formatting can break parsers after software changes. This is the direct exposure for IOS XE RESTCONF operational interface state. Mitigate with: Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header. Check success by: A GET returns structured interface counters or state data matching the selected model.

Incorrect Answers

A:

Reimplementing undocumented URL patterns can silently omit pages after platform changes. This risk occurs in the different Use supported Meraki SDK pagination helper situation. For the given IOS XE RESTCONF operational interface state requirement, the directly relevant risk is: Relying on CLI display formatting can break parsers after software changes.

C:

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 IOS XE RESTCONF operational interface state requirement, the directly relevant risk is: Relying on CLI display formatting can break parsers after software changes.

D:

Using a provisioning interface for directory lookups increases privilege and change risk. This risk occurs in the different CUCM UDS directory lookup situation. For the given IOS XE RESTCONF operational interface state requirement, the directly relevant risk is: Relying on CLI display formatting can break parsers after software changes.

Question 355

The initial implementation fails or does not meet the expected behavior. A management utility needs read-only interface operational status from IOS XE, but a colleague proposes parsing arbitrary terminal screen output. Which investigation should be prioritized to diagnose the problem?

  1. Inspect endpoint path, organization ID and response model fields.
  2. Inspect NETCONF hello capabilities, edit-config payload and rpc-error elements.
  3. Inspect advertised YANG model, RESTCONF resource path, HTTP status and response payload.
  4. Inspect SDK reference, returned data type, target controller URL and auth context.

Explanation

Correct Answer

C:

Inspect advertised YANG model, RESTCONF resource path, HTTP status and response payload. These are the relevant initial evidence checks for IOS XE RESTCONF operational interface state. Intended action: Use the supported RESTCONF operational-state resource with the YANG model path and required Accept header. Expected success condition: A GET returns structured interface counters or state data matching the selected model.

Incorrect Answers

A:

Inspect endpoint path, organization ID and response model fields. This investigation primarily applies to Meraki organization versus device endpoint scope, not the current IOS XE RESTCONF operational interface state problem. Prioritize: Inspect advertised YANG model, RESTCONF resource path, HTTP status and response payload.

B:

Inspect NETCONF hello capabilities, edit-config payload and rpc-error elements. This investigation primarily applies to NETCONF edit-config transaction, not the current IOS XE RESTCONF operational interface state problem. Prioritize: Inspect advertised YANG model, RESTCONF resource path, HTTP status and response payload.

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 IOS XE RESTCONF operational interface state problem. Prioritize: Inspect advertised YANG model, RESTCONF resource path, HTTP status and response payload.

Question 356

A Cisco network automation team has this requirement: 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 design or implementation action best addresses it?

  1. Request the documented device inventory endpoint or supported SDK operation and handle its returned device collection.
  2. Use an Accept header for the documented YANG data media type and an authenticated model resource.
  3. Use documented XDR incident APIs with approved scopes to retrieve correlated security context.
  4. Send the documented NX-API request for the supported show operation and parse its JSON response.

Explanation

Correct Answer

D:

Send the documented NX-API request for the supported show operation and parse its JSON response. Technical reason: NX-API and RESTCONF are distinct programming interfaces with different request schemas. Verify by: The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs. Deployment qualification: Feature availability and command/API mode depend on NX-OS release and platform.

Incorrect Answers

A:

Request the documented device inventory endpoint or supported SDK operation and handle its returned device collection. This instead targets the different case Get device inventory from Catalyst Center. The described NX-OS NX-API JSON command output requirement specifically calls for Send the documented NX-API request for the supported show operation and parse its JSON response.

B:

Use an Accept header for the documented YANG data media type and an authenticated model resource. This instead targets the different case RESTCONF JSON representation header. The described NX-OS NX-API JSON command output requirement specifically calls for Send the documented NX-API request for the supported show operation and parse its JSON response.

C:

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 NX-OS NX-API JSON command output requirement specifically calls for Send the documented NX-API request for the supported show operation and parse its JSON response.

Question 357

After deployment, an engineer must prove the proposed solution works. 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 observed result is the most direct acceptance evidence?

  1. The response includes the organization's devices across its authorized networks, not only clients on one switch.
  2. The target space contains one new message from the authorized integration.
  3. A change to Gi1 does not alter Gi2 and both values can be retrieved by model path.
  4. The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs.

Explanation

Correct Answer

D:

The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs. Recommended implementation: Send the documented NX-API request for the supported show operation and parse its JSON response. Why the observation matters: NX-API and RESTCONF are distinct programming interfaces with different request schemas.

Incorrect Answers

A:

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 NX-OS NX-API JSON command output case. For this case, the decisive observation is: The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs.

B:

The target space contains one new message from the authorized integration. That observation could confirm Create Webex message in known space, not the current NX-OS NX-API JSON command output case. For this case, the decisive observation is: The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs.

C:

A change to Gi1 does not alter Gi2 and both values can be retrieved by model path. That observation could confirm YANG leaf and list semantics, not the current NX-OS NX-API JSON command output case. For this case, the decisive observation is: The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs.

Question 358

A developer is explaining the underlying technical 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 principle is most relevant to this case?

  1. NX-API and RESTCONF are distinct programming interfaces with different request schemas.
  2. Meraki API resource scopes distinguish organizations, networks, devices and clients.
  3. ISE centralizes identity and network access policy decisions for supported integrations.
  4. Cisco controller APIs expose managed-device resources to software clients.

Explanation

Correct Answer

A:

NX-API and RESTCONF are distinct programming interfaces with different request schemas. This mechanism explains NX-OS NX-API JSON command output. Action: Send the documented NX-API request for the supported show operation and parse its JSON response. Expected confirmation: The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs.

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 NX-OS NX-API JSON command output case the operative principle is: NX-API and RESTCONF are distinct programming interfaces with different request schemas.

C:

ISE centralizes identity and network access policy decisions for supported integrations. This relates to ISE endpoint policy and posture use. In the current NX-OS NX-API JSON command output case the operative principle is: NX-API and RESTCONF are distinct programming interfaces with different request schemas.

D:

Cisco controller APIs expose managed-device resources to software clients. This relates to Get device inventory from Catalyst Center. In the current NX-OS NX-API JSON command output case the operative principle is: NX-API and RESTCONF are distinct programming interfaces with different request schemas.

Question 359

A team does not apply the necessary control or correction. 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 resulting failure or risk is most directly relevant?

  1. Confusing network-client records with organization-device inventory gives the wrong entity types.
  2. Unregistered targets or missing permissions can leave a misleading partial inventory.
  3. Using a provisioning interface for directory lookups increases privilege and change risk.
  4. Reusing the wrong device API path yields 404 or parsing failures despite correct credentials.

Explanation

Correct Answer

D:

Reusing the wrong device API path yields 404 or parsing failures despite correct credentials. This is the direct exposure for NX-OS NX-API JSON command output. Mitigate with: Send the documented NX-API request for the supported show operation and parse its JSON response. Check success by: The returned VLAN information matches the switch without relying on IOS XE-specific RESTCONF URLs.

Incorrect Answers

A:

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 NX-OS NX-API JSON command output requirement, the directly relevant risk is: Reusing the wrong device API path yields 404 or parsing failures despite correct credentials.

B:

Unregistered targets or missing permissions can leave a misleading partial inventory. This risk occurs in the different Intersight inventory across remote UCS domains situation. For the given NX-OS NX-API JSON command output requirement, the directly relevant risk is: Reusing the wrong device API path yields 404 or parsing failures despite correct credentials.

C:

Using a provisioning interface for directory lookups increases privilege and change risk. This risk occurs in the different CUCM UDS directory lookup situation. For the given NX-OS NX-API JSON command output requirement, the directly relevant risk is: Reusing the wrong device API path yields 404 or parsing failures despite correct credentials.

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.

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

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