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

Question 1

Which THREE of the following are valid event triggers for an EEM applet on Cisco IOS XE? (Choose THREE.)

Accepted Answer

timer. EEM applets support timer-based event triggers, such as absolute time, countdown, or watchdog timers, allowing automation of actions at specified intervals or after a delay. This is a core EEM feature defined in Cisco IOS XE for scheduling tasks without external input.

Answer

snmp trap

Answer

http request

Question 2

Which authentication method does Cisco DNA Center use to obtain an API token?

Accepted Answer

Basic Authentication with username:password. Cisco DNA Center uses Basic Authentication (username:password) via POST /dna/system/api/v1/auth/token to obtain a token for subsequent API calls.

Answer

OAuth 2.0 with client credentials

Answer

Bearer token from a separate identity provider

Answer

API key in a custom header

Question 3

A developer wants to retrieve the list of network devices from Cisco DNA Center. Which API endpoint should be used?

Accepted Answer

GET /dna/intent/api/v1/network-device. The GET /dna/intent/api/v1/network-device endpoint returns a list of network devices managed by DNA Center.

Answer

GET /dna/intent/api/v1/site

Answer

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

Answer

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

Question 4

When making API calls to Cisco Meraki Dashboard, what header must be included for authentication?

Accepted Answer

X-Cisco-Meraki-API-Key: <key>. Cisco Meraki Dashboard API uses a custom header for authentication rather than standard HTTP authentication schemes. The header `X-Cisco-Meraki-API-Key` must be included with the API key as its value. This is explicitly documented in the Meraki API reference and is required for all API requests to authenticate the caller.

Answer

Authorization: Basic <base64>

Answer

Authorization: Bearer <token>

Answer

Api-Key: <key>

Question 5

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?

Accepted Answer

There are additional data pages to retrieve.. Meraki uses Link headers for pagination; the next link indicates there are more pages of results to fetch.

Answer

The organization ID is invalid.

Answer

The API version is deprecated and should be updated.

Answer

The request is rate-limited and needs to wait.

Question 6

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?

Accepted Answer

POST /v1/messages with roomId parameter. To send a message to a Webex room, use POST /v1/messages with the roomId parameter to specify the target room.

Answer

POST /v1/messages with toPersonEmail parameter

Answer

POST /v1/memberships with roomId

Answer

POST /v1/rooms with message text

Question 7

When using RESTCONF on Cisco IOS XE, which URL retrieves the hostname configuration?

Accepted Answer

GET /restconf/data/Cisco-IOS-XE-native:native/hostname. The native YANG model Cisco-IOS-XE-native contains the hostname under /native/hostname.

Answer

GET /restconf/data/ietf-interfaces:interfaces

Answer

GET /restconf/data/openconfig-interfaces:interfaces

Answer

GET /restconf/data/Cisco-IOS-XE-native:native/interface

Question 8

An engineer wants to trigger an EEM applet when a specific syslog message appears. Which event detector should be used?

Accepted Answer

event syslog pattern. EEM's syslog event detector triggers on syslog messages matching a pattern.

Answer

event timer cron

Answer

event interface

Answer

event cli pattern

Question 9

Which NX-OS API method allows sending CLI commands in JSON format without enabling any additional features?

Accepted Answer

NX-API method 'cli' with JSON encoding. 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.

Answer

RESTCONF with YANG data

Answer

SNMP with MIB objects

Answer

NETCONF with XML data

Question 10

Which tool is used to explore and validate YANG models?

Accepted Answer

pyang. pyang is a Python-based tool for validating and converting YANG models.

Answer

Postman

Answer

cURL

Answer

YANGman

Question 11

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.)

Accepted Answer

Platform. DNAC API categories: 'Change your network' includes template deployment and PnP; 'Platform' includes task management for monitoring deployment status.

Answer

Know your network

Answer

Run your network

Answer

Event notifications

Question 12

A developer is building an integration with Cisco Meraki and needs to handle rate limiting. Which two responses indicate rate limiting and how should they be handled? (Choose two.)

Accepted Answer

Retry-After header with wait time in seconds. The Retry-After header explicitly tells the client how long to wait before retrying a request, which is the standard way to handle rate limiting. Option C is correct because HTTP status code 429 (Too Many Requests) is the definitive signal from the server that the client has exceeded the allowed rate limit. Together, these two responses allow a developer to identify and respond to rate limiting by pausing requests for the specified duration.

Answer

X-RateLimit-Remaining header

Answer

Link header with rel="next"

Answer

HTTP status code 503

Question 13

Which three components are required to set up a Webex webhook for message creation events? (Choose three.)

Accepted Answer

Resource type (e.g., "messages"). A is correct because every Webex webhook must specify a resource type to define which API resource triggers the webhook. For message creation events, the resource type must be "messages" to indicate that the webhook listens for changes to message resources. Without this, the webhook cannot know which data model to monitor.

Answer

Room ID to filter messages

Answer

API access token as a query parameter

Question 14

A network engineer wants to use model-driven programmability on IOS XE devices. Which two YANG model types are commonly used? (Choose two.)

Accepted Answer

OpenConfig YANG models. 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.

Answer

MIB files

Answer

IETF YANG models

Answer

CLI commands

Question 15

Which two Meraki Dashboard API features are used to paginate through large result sets? (Choose two.)

Accepted Answer

startingAfter and endingBefore parameters. Meraki supports Link header for standard pagination and startingAfter/endingBefore parameters for cursor-based pagination.

Answer

offset and limit parameters

Answer

page and perPage query parameters

Answer

Retry-After header