200-901 Cisco Platforms and Development Practice Test 7 — 15 Questions

Question 1

Which TWO of the following are features of the DNA Center 'Platform' API category?

Accepted Answer

Task management. The Platform category includes event notifications and task management.

Answer

Template deployment

Answer

Path trace

Answer

Device inventory

Question 2

A developer wants to retrieve a list of all network devices from Cisco DNA Center. Which API endpoint should they use?

Accepted Answer

GET /dna/intent/api/v1/network-device. The correct endpoint is GET /dna/intent/api/v1/network-device as per Cisco DNA Center API documentation.

Answer

GET /dna/intent/api/v1/topology/l2/{vlanID}

Answer

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

Answer

GET /dna/intent/api/v1/issues

Question 3

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?

Accepted Answer

Change your network. Template deployment falls under the 'change your network' API category in Cisco DNA Center.

Answer

Platform

Answer

Know your network

Answer

Run your network

Question 4

A developer is using the Meraki Dashboard API to retrieve a list of clients for a network. The API returns a 429 error. What should the developer do to handle this correctly?

Accepted Answer

Wait for the number of seconds specified in the Retry-After header before retrying.. A 429 HTTP status code indicates 'Too Many Requests,' meaning the client has exceeded the rate limit imposed by the Meraki Dashboard API. The correct handling is to respect the Retry-After header, which specifies the number of seconds the client must wait before retrying the request, as per RFC 7231 Section 7.1.3. This ensures compliance with API rate limits and prevents further throttling or temporary blocking.

Answer

Ignore the error and continue, as 429 is a temporary issue.

Answer

Switch to a different base URL to bypass the limit.

Answer

Increase the request rate by using multiple API keys in parallel.

Question 5

Which authentication method is used by the Cisco Meraki Dashboard API?

Accepted Answer

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

Answer

JWT token in the Authorization header

Answer

OAuth 2.0 token in the Authorization header

Answer

HTTP Basic authentication with username and password

Question 6

A developer wants to get the current user's information from the Webex API. Which endpoint should they use?

Accepted Answer

GET /v1/people/me. The GET /v1/people/me endpoint returns the authenticated user's details.

Answer

POST /v1/messages

Answer

GET /v1/webhooks

Answer

GET /v1/rooms

Question 7

An administrator needs to retrieve the hostname of an IOS XE device using RESTCONF. Which URL and data path should they use?

Accepted Answer

GET /restconf/data/Cisco-IOS-XE-native:native/hostname. RESTCONF on IOS XE uses the native YANG model; the hostname is under /Cisco-IOS-XE-native:native/hostname.

Answer

GET /api/v1/device/hostname

Answer

POST /restconf/data/Cisco-IOS-XE-native:native/hostname

Answer

GET /restconf/data/ietf-interfaces:interfaces

Question 8

A developer is working with the Webex API to receive real-time notifications when a message is posted. Which resource should they create?

Accepted Answer

A webhook with resource 'messages' and event 'created'. Webex webhooks allow you to subscribe to events like message.created.

Answer

A bot that polls the /v1/messages endpoint every second

Answer

A membership to the room to receive notifications

Answer

A webhook with resource 'rooms' and event 'created'

Question 9

Which command enables the NX-API feature on a Cisco NX-OS device?

Accepted Answer

feature nxapi. The global configuration command 'feature nxapi' enables the NX-API interface.

Answer

restconf enable

Answer

nxapi enable

Answer

enable nxapi

Question 10

A developer needs 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 the room ID and message body.

Answer

GET /v1/messages

Answer

PUT /v1/messages

Answer

DELETE /v1/messages

Question 11

A network engineer wants to automate a configuration change on a Cisco IOS XE device when a specific syslog message appears. Which tool should they use?

Accepted Answer

EEM applet configured to match the syslog pattern and execute CLI commands. Embedded Event Manager (EEM) can trigger actions based on syslog patterns.

Answer

RESTCONF with a Python script polling the device

Answer

SNMP trap receiver

Answer

NETCONF with a YANG-based notification subscription

Question 12

A developer is using the Cisco DNA Center API and receives a token. How is this token typically used in subsequent API requests?

Accepted Answer

In the X-Auth-Token header. 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.

Answer

As a query parameter named token

Answer

In the request body

Answer

In the Authorization header as Bearer <token>

Question 13

Which YANG model is an OpenConfig model used for interface configuration?

Accepted Answer

openconfig-interfaces. 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.

Answer

oc-yang-interfaces

Answer

ietf-interfaces

Answer

Cisco-IOS-XE-interfaces

Question 14

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.)

Accepted Answer

The Link header contains URLs for the next and previous pages.. Meraki API pagination uses Link header or startingAfter/endingBefore query parameters.

Answer

Page size is fixed at 1000 items per page.

Answer

Pagination is optional and disabled by default.

Answer

Pagination requires the use of OAuth tokens.

Question 15

A developer is building a chatbot that needs to send a direct message to a user on Webex. Which TWO fields are required in the POST /v1/messages request? (Choose TWO.)

Accepted Answer

toPersonId. To send a direct message via the Webex API, you must provide exactly one recipient identifier (either toPersonId or toPersonEmail) and exactly one message content field (either markdown or text). Therefore, the two required fields are a recipient field and a content field. Option B (toPersonId) and Option C (markdown) form such a pair. Option D (toPersonEmail) is a valid recipient but is not required if toPersonId is used; it is not needed as a second field since only one recipient is needed.

Answer

roomId

Answer

toPersonEmail

Answer

files