200-901 Cisco Platforms and Development Practice Test 8 — 15 Questions

Question 1

A Webex bot needs to send a message to a room. The bot has the room ID. Which API endpoint should be used, and what is the correct HTTP method?

Accepted Answer

POST /v1/messages. The Webex Teams API uses POST /v1/messages to create and send a new message to a room. The request body must include the roomId and either text or markdown. This is the standard endpoint for sending messages, and it returns a 200 OK with the message details upon success.

Answer

PUT /v1/messages/{messageId}

Answer

GET /v1/messages

Answer

POST /v1/rooms

Question 2

In DNA Center, which API endpoint is used to retrieve a list of current network issues?

Accepted Answer

GET /dna/intent/api/v1/issues. DNA Center's issues API is at /dna/intent/api/v1/issues.

Answer

GET /dna/intent/api/v1/topology

Answer

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

Answer

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

Question 3

Which tool can be used to explore YANG models locally?

Accepted Answer

pyang. pyang is a tool for validating and converting YANG models.

Answer

yangcatalog.org

Answer

Cisco DevNet sandbox

Answer

Postman

Question 4

A developer needs to register a Webex webhook that triggers when a new message is posted in any room the bot is a member of. Which resource and event should be specified?

Accepted Answer

resource: 'messages', event: 'created'. To listen for new messages in any room the bot is in, use the 'messages' resource and 'created' event.

Answer

resource: 'rooms', event: 'created'

Answer

resource: 'messages', event: 'updated'

Answer

resource: 'memberships', event: 'created'

Question 5

A Meraki API request is receiving HTTP 429 responses. According to the Meraki rate limit, what should the developer do?

Accepted Answer

Reduce the number of concurrent requests and wait for the Retry-After header value.. Meraki returns 429 with a Retry-After header indicating the number of seconds to wait.

Answer

Switch to the DNA Center API.

Answer

Use a different API key.

Answer

Immediately retry the request without delay.

Question 6

Which EEM applet action is used to execute a CLI command when an event triggers?

Accepted Answer

action 1.0 cli command "...". EEM uses 'action' with a sequence number and 'cli' keyword to execute commands.

Answer

action 1.0 event "..."

Answer

action 1.0 set 1.0 "..."

Answer

action 1.0 syslog msg "..."

Question 7

In DNA Center, which API category is used to deploy templates to devices?

Accepted Answer

Change your network. 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.

Answer

Platform

Answer

Know your network

Answer

Run your network

Question 8

A developer needs to retrieve the hostname of a Cisco IOS XE device using RESTCONF. Which URI path is correct?

Accepted Answer

/restconf/data/Cisco-IOS-XE-native:native/hostname. RESTCONF uses the YANG module namespace. The native hostname is at /restconf/data/Cisco-IOS-XE-native:native/hostname.

Answer

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

Answer

/api/v1/device/hostname

Answer

/restconf/data/hostname

Question 9

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 10

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 11

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 12

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 13

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 Webex API endpoint GET /v1/people/me returns the profile information of the authenticated user, which is exactly what the developer needs. It uses the OAuth token of the current user to identify 'me'. Other endpoints serve different resources like messages, webhooks, or rooms.

Answer

POST /v1/messages

Answer

GET /v1/webhooks

Answer

GET /v1/rooms

Question 14

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 15

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'