46 of 121 questions · Page 2/2 · Cisco Platforms and Development · Answers revealed
Which Cisco platform provides a cloud-managed networking solution with a RESTful API that uses an API key in the X-Cisco-Meraki-API-Key header?
Meraki API uses API key header.
Why this answer
The Meraki Dashboard API uses an API key in the X-Cisco-Meraki-API-Key header.
A developer is working with the Webex API to receive real-time notifications when a message is posted. Which resource should they create?
This will trigger when a message is created.
Why this answer
Webex webhooks allow you to subscribe to events like message.created.
An administrator wants to receive real-time notifications when a new message is posted to a Webex room. Which Webex API resource should be used to configure this?
Webhooks API allows registering for events such as message.created.
Why this answer
Webhooks allow you to register for events like message.created. The webhook resource is used for this purpose.
In DNA Center, which API category is used to deploy templates to devices?
Correct. This includes template deployment and PnP.
Why this answer
The 'Change your network' API category in Cisco DNA Center is specifically designed for network configuration and provisioning tasks, including deploying templates to devices. This category encompasses APIs that push configuration changes, such as applying CLI templates via the Template Programmer (formerly Template Editor) or provisioning new network settings, directly aligning with the action of deploying templates to network devices.
Exam trap
The trap here is that candidates confuse 'Run your network' (which involves monitoring and operational state) with 'Change your network' (which involves active configuration changes), leading them to select D because they associate 'running' with executing templates, but Cisco specifically separates read-only operations from write operations in its API categorization.
How to eliminate wrong answers
Option A is wrong because the 'Platform' API category provides foundational services like authentication, RBAC, and event notifications, not template deployment. Option B is wrong because 'Know your network' focuses on read-only APIs for inventory, topology, and assurance data, not on making configuration changes. Option D is wrong because 'Run your network' deals with operational tasks like device health monitoring and troubleshooting, not the active deployment of configuration templates.
An engineer is developing an EEM applet on a Cisco IOS XE device to run a CLI command when a specific syslog message appears. Which event trigger should be used?
Correct. This triggers on syslog message pattern match.
Why this answer
The syslog pattern event trigger allows matching a specific syslog message pattern.
A network engineer is using Cisco IOS XE RESTCONF to retrieve the hostname of a device. The YANG module used is 'Cisco-IOS-XE-native'. Which URL path is correct?
Correct. This retrieves the hostname using the native model.
Why this answer
RESTCONF on IOS XE uses the path /restconf/data/ followed by the YANG path. The hostname is under native/hostname.
A network engineer wants to use model-driven programmability on IOS XE devices. Which two YANG model types are commonly used? (Choose two.)
Vendor-neutral models like oc-interfaces.
Why this answer
OpenConfig YANG models (Option D) are vendor-neutral, community-driven models that provide a consistent way to manage network devices across multiple vendors, including Cisco IOS XE. Cisco native YANG models (Option E) are Cisco-specific models that expose the full set of device features and are directly supported on IOS XE. Both are commonly used for model-driven programmability with NETCONF/RESTCONF.
Exam trap
Cisco often tests the distinction between YANG model types (OpenConfig, IETF, Cisco native) and non-YANG concepts like MIBs or CLI, so candidates mistakenly select MIB files or CLI commands because they are familiar management tools, but they are not YANG models.
A developer is using the Cisco DNA Center API and receives a token. How is this token typically used in subsequent API requests?
This is the correct header for DNA Center API requests.
Why this answer
The Cisco DNA Center API uses token-based authentication where the token is passed in the X-Auth-Token HTTP header for subsequent requests. This is the standard method specified in the Cisco DNA Center API documentation, ensuring the server can validate the session without relying on cookies or query parameters.
Exam trap
Cisco often tests the specific header name (X-Auth-Token) versus the more generic Authorization header with Bearer scheme, so the trap here is that candidates familiar with OAuth 2.0 may incorrectly choose Option D, not realizing that Cisco DNA Center uses its own proprietary header for token transmission.
How to eliminate wrong answers
Option A is wrong because passing the token as a query parameter named 'token' is insecure and not supported by the Cisco DNA Center API; tokens should never be exposed in URLs due to logging and caching risks. Option B is wrong because placing the token in the request body would require a specific API endpoint to accept it that way, but the standard for RESTful APIs like DNA Center is to use headers, not the body, for authentication. Option D is wrong because although Bearer tokens in the Authorization header are common in OAuth 2.0, the Cisco DNA Center API specifically requires the X-Auth-Token header, not the Authorization header; using the wrong header will result in an authentication failure.
A developer wants to retrieve the list of network devices from Cisco DNA Center. Which API endpoint should be used?
This is the correct endpoint for device list.
Why this answer
The GET /dna/intent/api/v1/network-device endpoint returns a list of network devices managed by DNA Center.
Which command enables the NX-API feature on a Cisco NX-OS device?
This is the correct command in global configuration mode.
Why this answer
The global configuration command 'feature nxapi' enables the NX-API interface.
A developer is using the Meraki Dashboard API to list all networks in an organization. The response includes a Link header with rel="next". What does this indicate?
Link header with rel="next" is used for pagination.
Why this answer
Meraki uses Link headers for pagination; the next link indicates there are more pages of results to fetch.
Which TWO statements about Cisco Meraki API pagination are correct? (Choose two.)
This is a cursor parameter for pagination.
Why this answer
Meraki uses Link header for pagination and supports startingAfter/endingBefore parameters.
A network administrator wants to use Cisco Webex APIs to automate sending messages to a specific room. Which THREE pieces of information are required to send a message using POST /v1/messages?
The message content is provided in the request body as text or markdown.
Why this answer
The POST /v1/messages endpoint requires authentication via a bearer token in the Authorization header (option E). To specify the recipient, you must provide either a roomId or toPersonEmail (option C). The message body must be included as text or markdown (option B).
Therefore, options B, C, and E are required. Options A and D are incorrect because A uses a Meraki API key (not used in Webex) and D requires a user ID (not needed for sending messages to a room or person).
Which authentication method does Cisco DNA Center use to obtain an API token?
DNA Center uses Basic Auth to obtain a token.
Why this answer
Cisco DNA Center uses Basic Authentication (username:password) via POST /dna/system/api/v1/auth/token to obtain a token for subsequent API calls.
Which TWO of the following are categories of Cisco DNA Center APIs? (Choose two.)
This includes command runner, path trace, issues.
Why this answer
DNA Center API categories include 'Know your network', 'Run your network', 'Change your network', and 'Platform'.
A network engineer wants to retrieve a list of all network devices from Cisco DNA Center using the REST API. Which authentication method is required to obtain an access token?
Correct. The token is obtained via Basic Auth and then used in subsequent requests.
Why this answer
Cisco DNA Center uses Basic Authentication to obtain a token by sending a POST request to /dna/system/api/v1/auth/token with a Basic Auth header. The returned token is then used in subsequent API calls.
An engineer needs to authenticate to the Cisco DNA Center API to obtain a token. What is the correct authentication method and endpoint?
This is the correct authentication endpoint and method.
Why this answer
Cisco DNA Center uses Basic authentication (with username:password) to POST to /dna/system/api/v1/auth/token to obtain a token.
A developer is using the Meraki Dashboard API to retrieve a list of clients for a given network. The initial GET request returns a 429 HTTP status. What should the developer do to handle this response appropriately?
Correct. The Retry-After header tells the client how long to wait.
Why this answer
The Meraki API rate limits at 5 requests per second. A 429 response includes a Retry-After header indicating the number of seconds to wait before retrying.
A developer is using the Meraki Dashboard API to retrieve a list of devices in an organization. The API response is paginated. Which HTTP header does Meraki use to indicate the next page of results?
Correct. Meraki uses the Link header with rel="next" to indicate the next page URL.
Why this answer
Meraki uses the Link header with rel="next" for pagination, or alternatively the startingAfter/endingBefore parameters.
Which YANG model type is defined by industry standards and supported by multiple vendors, offering interoperability?
Correct. OpenConfig models are designed for multi-vendor interoperability.
Why this answer
OpenConfig models are vendor-neutral, community-driven YANG models that promote interoperability across different network devices.
An engineer is using the Cisco Meraki Dashboard API to retrieve a list of all network clients for a specific network. Which TWO of the following are required to successfully make this API call?
The network ID is required in the URL to identify the network.
Why this answer
The Meraki Dashboard API endpoint for listing network clients (GET /networks/{networkId}/clients) requires the network ID as a path parameter to identify the specific network from which to retrieve client data. Without the network ID in the URL, the API cannot determine which network's clients to return, making it a mandatory component of the request.
Exam trap
Cisco often tests the distinction between authentication methods (API key header vs. Bearer token) and the correct placement of identifiers (network ID vs. organization ID) to see if candidates understand the specific Meraki API authentication and resource hierarchy.
In DNA Center, which API endpoint is used to retrieve a list of current network issues?
Correct. This endpoint returns a list of network issues.
Why this answer
DNA Center's issues API is at /dna/intent/api/v1/issues.
Which Cisco platform provides an API to retrieve a list of issues affecting the network?
Correct. DNA Center provides GET /dna/intent/api/v1/issues.
Why this answer
Cisco DNA Center includes issues API under the 'run your network' category.
A developer needs to retrieve the hostname of a Cisco IOS XE device using RESTCONF. Which URI path is correct?
Correct. This path accesses the hostname leaf.
Why this answer
RESTCONF uses the YANG module namespace. The native hostname is at /restconf/data/Cisco-IOS-XE-native:native/hostname.
An administrator is automating the deployment of a new switch using Cisco DNA Center. Which API category should they use to provision the device with a configuration template?
Template deployment and plug and play are part of this category.
Why this answer
Template deployment falls under the 'change your network' API category in Cisco DNA Center.
A developer is exploring YANG models on yangcatalog.org. They want to find a standard model for interface configuration that is vendor-neutral. Which model should they look for?
OpenConfig models are vendor-neutral.
Why this answer
OpenConfig models are vendor-neutral. oc-interfaces is the OpenConfig model for interfaces.
A network automation engineer is using Cisco DNA Center APIs. Which TWO of the following are valid API categories? (Choose two.)
Correct. This includes device list, topology, and site APIs.
Why this answer
The valid categories are 'Know your network' and 'Change your network'. 'Monitor your network' and 'Secure your network' are not official categories.
A network administrator is using Cisco DNA Center APIs to automate network changes. Which two API categories are used to perform configuration deployments? (Choose two.)
Platform APIs include task management to track deployment status.
Why this answer
DNAC API categories: 'Change your network' includes template deployment and PnP; 'Platform' includes task management for monitoring deployment status.
A developer is using the Meraki Dashboard API to list all organizations. Which TWO of the following are true regarding pagination in the Meraki API? (Choose TWO.)
Meraki uses the Link header for pagination.
Why this answer
Meraki API pagination uses Link header or startingAfter/endingBefore query parameters.
An application needs to retrieve all network clients from a specific Meraki network. The API response may be paginated. Which query parameters can be used to implement cursor-based pagination with the Meraki Dashboard API?
Correct. These are the cursor parameters for pagination.
Why this answer
Meraki supports cursor-based pagination using startingAfter and endingBefore parameters.
An administrator is configuring a Cisco Meraki Dashboard API integration. After receiving a 429 HTTP response, what header should be examined to determine when the request can be retried?
Correct. Meraki includes a Retry-After header in the 429 response.
Why this answer
Meraki's rate limit returns a 429 status with a Retry-After header indicating the number of seconds to wait before retrying.
Which YANG model is an OpenConfig model commonly used for interface configuration?
Correct. OpenConfig's interface model is oc-interfaces (openconfig-interfaces).
Why this answer
OpenConfig models include oc-interfaces for interface configuration.
Which YANG model is an OpenConfig model used for interface configuration?
This is the OpenConfig model for interfaces.
Why this answer
OpenConfig is a vendor-neutral, community-driven data model standard for network configuration and state. The 'openconfig-interfaces' YANG model is the OpenConfig model specifically designed for interface configuration, providing a consistent, model-driven approach across different network operating systems. Option D is correct because it directly names the OpenConfig model for interfaces.
Exam trap
Cisco often tests the distinction between vendor-neutral OpenConfig models, IETF standard models, and Cisco proprietary native models, expecting candidates to recognize that 'openconfig-interfaces' is the correct OpenConfig model name, not a generic or IETF-prefixed alternative.
How to eliminate wrong answers
Option A is wrong because 'oc-yang-interfaces' is not a recognized YANG model name; OpenConfig models use the prefix 'openconfig-', not 'oc-yang-'. Option B is wrong because 'ietf-interfaces' is the IETF standard YANG model for interface management (RFC 7223), not an OpenConfig model. Option C is wrong because 'Cisco-IOS-XE-interfaces' is a Cisco proprietary native YANG model specific to IOS XE platforms, not an OpenConfig model.
An administrator needs to retrieve the hostname of an IOS XE device using RESTCONF. Which URL and data path should they use?
This is the correct RESTCONF path for the hostname.
Why this answer
RESTCONF on IOS XE uses the native YANG model; the hostname is under /Cisco-IOS-XE-native:native/hostname.
Which tool is used to explore and validate YANG models?
pyang is the standard tool for YANG model exploration.
Why this answer
pyang is a Python-based tool for validating and converting YANG models.
A network engineer is using Cisco IOS XE RESTCONF to retrieve the hostname of a device. The device has already enabled netconf-yang and restconf. Which URL path should be used?
This is the correct RESTCONF path for hostname using the native YANG model.
Why this answer
The hostname is under Cisco-IOS-XE-native:native/hostname in the YANG model. RESTCONF uses the module name and path.
When using the NX-API on Cisco NX-OS, which HTTP method is used to send CLI commands in JSON format?
Correct. CLI commands are sent via POST to /ins.
Why this answer
NX-API uses POST requests to the /ins endpoint with a JSON body containing the CLI commands and the type (cli_show or cli_conf).
Which NX-OS API method allows sending CLI commands in JSON format without enabling any additional features?
NX-API allows CLI commands via JSON-RPC.
Why this answer
NX-API on NX-OS supports both JSON-RPC (with method 'cli' or 'cli_ascii') and JSON encoding for CLI commands. The method 'cli' or 'cli_ascii' in JSON-RPC format is used.
A network automation engineer is evaluating options for model-driven programmability on Cisco devices. Which THREE are valid YANG model sources or tools? (Choose three.)
pyang is a YANG data modeling tool.
Why this answer
pyang is a YANG tool, yangcatalog.org is a repository, and Cisco native models are valid sources. OpenConfig is a standard, but oc-interfaces is a model, not a source/tool.
A developer wants to create a Webex webhook that triggers when a new message is posted in any room the bot is in. Which resource event should they subscribe to?
Correct. This triggers when a message is created.
Why this answer
To trigger on new messages, subscribe to 'messages' resource with 'created' event.
Which EEM applet action is used to execute a CLI command when an event triggers?
Correct. This executes a CLI command.
Why this answer
EEM uses 'action' with a sequence number and 'cli' keyword to execute commands.
An engineer is exploring YANG models for network interfaces. They need a vendor-neutral model that can be used across multiple device types. Which YANG model should they use?
OpenConfig provides vendor-neutral YANG models.
Why this answer
OpenConfig models are vendor-neutral, while Cisco native models are vendor-specific.
A developer needs to send a message to a specific room in Webex using the API. What is the correct endpoint and required body parameter for the room destination?
roomId specifies the target room for the message.
Why this answer
To send a message to a Webex room, use POST /v1/messages with the roomId parameter to specify the target room.
An EEM applet is triggered when a specific syslog message pattern appears. Which action should be used to send a custom syslog message?
Correct. This generates a syslog message with the specified text.
Why this answer
EEM applets use 'action <label> syslog msg <message>' to generate a syslog message.
A network automation engineer needs to retrieve the Layer 2 topology for a specific VLAN from Cisco DNA Center. Which API endpoint should be used?
This is the correct endpoint for Layer 2 topology.
Why this answer
The endpoint GET /dna/intent/api/v1/topology/l2/{vlanID} is used to retrieve Layer 2 topology for a VLAN.
A developer is building an application that interacts with the Webex API to create rooms and send messages. The application needs to receive real-time notifications when a new message is posted in any room. Which TWO actions should the developer take? (Choose two.)
The webhook needs a URL to send the POST request to.
Why this answer
To receive real-time notifications, a webhook must be registered for the 'message.created' event. The webhook will POST to a specified URL when a message is created.
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