200-901 Practice Test 6 — 10 Questions

Question 1

Refer to the exhibit. Which key-value pair indicates whether this Meraki MR is currently connected to the cloud?

Accepted Answer

"status": "online". The 'status' key with the value 'online' directly indicates that the Meraki MR access point is currently connected to the Meraki cloud. In the Meraki dashboard API response, the 'status' field reflects the device's cloud connectivity state, where 'online' means the device has an active connection to the Meraki cloud controller.

Answer

"serial": "Q2XX-XXXX-XXXX"

Answer

"lanIp": "192.168.1.100"

Answer

"model": "MR42"

Question 2

Match each Python library to its typical use in network automation.

Accepted Answer

Netmiko: Simplifies SSH connections to network devices. Netmiko, NAPALM, Paramiko, and PyEZ are common Python libraries in network automation. Netmiko simplifies SSH, NAPALM provides a vendor-agnostic API, Paramiko is a low-level SSH library, and PyEZ is Juniper-specific. Common confusions include mixing Netmiko with HTTP libraries and NAPALM with vendor-specific tools.

Answer

Netmiko: Used for HTTP REST API calls

Answer

NAPALM: Juniper-specific library for automation

Question 3

Using the Cisco DNA Center API, an engineer wants to create a new site with building and floor information. Which HTTP method and endpoint should be used?

Accepted Answer

POST /dna/intent/api/v1/site. The POST HTTP method is used to create a new resource on the server, and the Cisco DNA Center API endpoint `/dna/intent/api/v1/site` is designed to accept a POST request with a JSON payload containing site, building, and floor details. This follows RESTful conventions where POST is the standard method for resource creation, and the API documentation specifies this exact endpoint for adding a new site hierarchy.

Answer

PUT /dna/intent/api/v1/site

Answer

GET /dna/intent/api/v1/site

Answer

POST /dna/intent/api/v1/site/create

Question 4

A network engineer wants to stream telemetry data from a Cisco router using gRPC. Which gRPC service model is typically used for the router to push data to a collector?

Accepted Answer

Dial-out model. Dial-out streaming (also called telemetry push) is where the device initiates the connection and sends data to the collector. Dial-in is where the collector pulls data from the device.

Answer

RESTCONF events

Answer

NETCONF subscription

Answer

Dial-in model

Question 5

In a microservices architecture, which of the following is a primary advantage over a monolithic architecture?

Accepted Answer

Independent deployability and scaling of services. Microservices decompose an application into independently deployable services, each owning its own lifecycle. This enables teams to deploy, scale, and update services independently without redeploying the entire application, which is the primary advantage over a monolith. Independent deployability and scaling directly improve agility and fault isolation.

Answer

Easier end-to-end testing

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Lower operational overhead

Answer

Simpler inter-service communication

Question 6

An engineer is using the Cisco Intersight API to manage UCS servers. The API response returns a paginated list. What is the proper way to retrieve all items?

Accepted Answer

Loop through pages using the 'next' link in the response. The Cisco Intersight API uses cursor-based pagination, where each page response includes a 'next' link pointing to the next page of results. To retrieve all items, you must follow that link in a loop until the 'next' field is null or absent, ensuring you get every page without assuming a fixed offset or page size.

Answer

Increase the page size limit to maximum

Answer

Send multiple requests with different offsets manually

Answer

Use a single request with a filter to get all

Question 7

A Python script using the Cisco Meraki SDK fails with 'APIError: 429 Too Many Requests'. What action should the developer take?

Accepted Answer

Add a retry mechanism with exponential backoff. The HTTP 429 status code indicates rate limiting has been exceeded. The Meraki API enforces rate limits to protect its infrastructure, and the SDK's built-in retry mechanism with exponential backoff is the correct way to handle this, as it automatically waits increasing intervals between retries, respecting the Retry-After header if present.

Answer

Increase the timeout value

Answer

Change the HTTP method to POST

Answer

Use a different API key

Question 8

A developer is using Git for version control of a Python library. A colleague accidentally committed a large sensitive file. Which Git command sequence should be used to remove the file from history without losing subsequent changes?

Accepted Answer

git filter-branch or git filter-repo. `git filter-branch` and `git filter-repo` are designed to rewrite Git history, allowing you to permanently remove a large sensitive file from all commits. This is necessary when a file has been committed and pushed, as simple removal with `git rm` only affects the latest commit and leaves the file accessible in prior history. Using these commands ensures the file is purged from the entire repository history without losing subsequent changes, as they replay the commit graph while filtering out the specified file.

Answer

git rm --cached && git commit

Answer

git rebase -i && git commit --amend

Answer

git revert HEAD

Question 9

Which data serialization format is most commonly used for configuration files in Cisco automation tools like Ansible?

Accepted Answer

YAML. YAML is the most commonly used data serialization format for configuration files in Cisco automation tools like Ansible because it is human-readable, supports complex data structures (lists, dictionaries), and is natively parsed by Ansible playbooks. Cisco's automation solutions, including those for network devices, rely on YAML for defining tasks, variables, and inventory files due to its minimal syntax and compatibility with Jinja2 templating.

Answer

CSV

Answer

HTML

Answer

XML

Question 10

Which Git command is used to switch to an existing branch named 'feature-x' and update the working directory?

Accepted Answer

git checkout feature-x. `git checkout feature-x` is the traditional Git command that switches the HEAD reference to the existing branch 'feature-x' and updates the working directory to match that branch's commit history. This command performs both the branch switch and the working tree update in one operation, which is the core requirement of the question.

Answer

git merge feature-x

Answer

git branch feature-x

Answer

git switch -c feature-x