200-901 Cisco Platforms and Development Practice Test 5 — 15 Questions

Question 1

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?

Accepted Answer

Webhooks API. Webhooks allow you to register for events like message.created. The webhook resource is used for this purpose.

Answer

People API

Answer

Messages API

Answer

Rooms API

Question 2

A developer is using the Meraki Dashboard API to retrieve a list of clients for a network. After a successful request, the response includes a Link header with rel="next" pointing to the next page. What does this indicate about the API's pagination?

Accepted Answer

The API uses Link header pagination and the next page can be retrieved by following the URL in the Link header.. Meraki API uses Link headers for pagination, and a rel="next" link indicates there are additional pages to fetch.

Answer

The API uses page-based pagination with page and perPage parameters.

Answer

The API uses offset-based pagination and the next page can be retrieved by incrementing an offset parameter.

Answer

The API uses cursor-based pagination with startingAfter/endingBefore parameters.

Question 3

An engineer needs to authenticate to the Cisco DNA Center API to obtain a token. What is the correct authentication method and endpoint?

Accepted Answer

POST /dna/system/api/v1/auth/token with Basic auth header. Cisco DNA Center uses Basic authentication (with username:password) to POST to /dna/system/api/v1/auth/token to obtain a token.

Answer

POST /dna/system/api/v1/token with Bearer auth

Answer

GET /dna/intent/api/v1/auth/token with Basic auth header

Answer

POST /dna/system/api/v1/auth/token with API key in header

Question 4

A developer wants to send a message to a Webex room using the API. Which HTTP method and endpoint should they use?

Accepted Answer

POST /v1/messages. To send a message, use POST to /v1/messages with roomId or toPersonEmail.

Answer

POST /v1/rooms

Answer

PUT /v1/messages

Answer

GET /v1/messages

Question 5

A developer is using the Meraki Dashboard API and receives an HTTP 429 status code with a Retry-After header. What is the correct interpretation?

Accepted Answer

The rate limit has been exceeded; the client should wait the number of seconds specified in Retry-After before retrying.. HTTP 429 status code indicates 'Too Many Requests', meaning the client has exceeded the rate limit imposed by the Meraki Dashboard API. The Retry-After header specifies the number of seconds the client must wait before sending a new request to avoid further throttling. This is a standard rate-limiting mechanism defined in RFC 6585.

Answer

The API key is invalid and the request should be re-authenticated.

Answer

The server is temporarily unavailable; the client should retry immediately.

Answer

The request was successful but the response is too large.

Question 6

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?

Accepted Answer

Cisco Meraki. The Meraki Dashboard API uses an API key in the X-Cisco-Meraki-API-Key header.

Answer

Cisco Webex

Answer

Cisco DNA Center

Answer

Cisco IOS XE

Question 7

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?

Accepted Answer

GET /dna/intent/api/v1/topology/l2/{vlanID}. The endpoint GET /dna/intent/api/v1/topology/l2/{vlanID} is used to retrieve Layer 2 topology for a VLAN.

Answer

GET /dna/intent/api/v1/issues

Answer

GET /dna/intent/api/v1/site

Answer

GET /dna/intent/api/v1/network-device

Question 8

An engineer is using EEM on an IOS XE device. They want to trigger an applet when a specific syslog message appears. Which event trigger type should they use?

Accepted Answer

event syslog pattern. The 'event syslog pattern' trigger in EEM (Embedded Event Manager) is specifically designed to fire an applet when a syslog message matching a regex pattern is logged. It watches the device's syslog stream and activates the applet when the pattern matches. This is the canonical trigger for reacting to specific log events on IOS XE.

Answer

event interface

Answer

event cli match

Answer

event timer

Question 9

Which Cisco platform uses NX-API to allow programmatic access to CLI commands via JSON?

Accepted Answer

Cisco NX-OS. Cisco NX-OS is the network operating system that runs on Nexus switches and supports NX-API, which allows programmatic access to CLI commands via JSON (or XML) over HTTP/HTTPS. NX-API exposes the /ins endpoint for CLI execution and /api for model-driven REST access.

Answer

Cisco Meraki

Answer

Cisco DNA Center

Answer

Cisco IOS XE

Question 10

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.)

Accepted Answer

pyang. 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.

Answer

NETCONF

Answer

oc-interfaces

Question 11

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?

Accepted Answer

Check the Retry-After header and wait that many seconds before retrying. 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.

Answer

Convert the request to a POST method to bypass the rate limit

Answer

Ignore the 429 and send the request again with a different API key

Answer

Send a DELETE request to clear the rate limit counter

Question 12

A developer wants to send a message to a Webex room using the API. The message should contain a simple text body. Which endpoint and parameter are required?

Accepted Answer

POST /v1/messages with body parameter 'roomId' and 'text'. To send a message, a POST request is made to /v1/messages with a JSON body containing roomId and text (or markdown). roomId identifies the target room.

Answer

GET /v1/messages with query parameter 'roomId'

Answer

POST /v1/memberships with body parameter 'message'

Answer

POST /v1/rooms with body parameter 'text'

Question 13

Using the Cisco DNA Center API, which endpoint should be queried to retrieve the Layer 2 topology for a specific VLAN?

Accepted Answer

GET /dna/intent/api/v1/topology/l2/{vlanID}. Cisco DNA Center provides /dna/intent/api/v1/topology/l2/{vlanID} to retrieve Layer 2 topology information for a given VLAN.

Answer

GET /dna/intent/api/v1/issues

Answer

GET /dna/intent/api/v1/network-device

Answer

GET /dna/intent/api/v1/topology/physical-topology

Question 14

A developer is using the Meraki Dashboard API to list all organizations. The base URL is https://api.meraki.com/api/v1/. What is the correct endpoint and authentication method?

Accepted Answer

GET /organizations with X-Cisco-Meraki-API-Key header. The Meraki Dashboard API uses a custom API key for authentication, sent via the `X-Cisco-Meraki-API-Key` header. To list all organizations, the correct HTTP method is GET, and the endpoint is `/organizations` (relative to the base URL `https://api.meraki.com/api/v1/`). This matches option C exactly.

Answer

POST /organizations with Bearer token in Authorization header

Answer

GET /organizations with Basic Auth username and password

Answer

GET /v1/organizations with Cookie authentication

Question 15

An EEM applet is triggered when a specific syslog message pattern appears. Which action should be used to send a custom syslog message?

Accepted Answer

action 1.0 syslog msg "Custom event occurred". In an EEM applet, to send a custom syslog message, the correct action is 'action 1.0 syslog msg "Custom event occurred"'. This action explicitly generates a syslog message with the specified text. It is the standard way to emit a custom syslog from EEM.

Answer

action 1.0 cli command "show logging"

Answer

action 1.0 info type routername

Answer

action 1.0 set 1.0 _syslog_msg "Custom event"