200-901 Network Fundamentals Practice Question
A developer is writing a script to interact with a REST API. The API documentation states that the base URL is https://api.example.com/v1/ and that the resource for users is /users. The developer needs to retrieve a list of all users. Which HTTP request should the developer send to the correct endpoint?
⚠ Common exam trap
The trap here is using POST or PUT for retrieval; these methods alter state or create resources, whereas GET is safe and idempotent for fetching data.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
GET https://api.example.com/v1/users
RESTful APIs use HTTP methods semantically: GET for retrieval, POST for creation, PUT for update, DELETE for removal. To list users, a GET request to the users collection endpoint is correct. The base URL and resource path must be concatenated properly, and the plural form /users indicates the collection. The other methods would cause unintended actions or target the wrong resource.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
PUT https://api.example.com/v1/users
Why it's wrong here
PUT is used to update or replace a resource, typically requiring a full representation. Sending PUT to the collection endpoint is not standard for retrieval and could overwrite data. It does not retrieve a list and is not idempotent for creation in the same way as POST.
- ✓
GET https://api.example.com/v1/users
Why this is correct
The correct endpoint is formed by combining the base URL and the resource path. A GET request to /v1/users retrieves the collection of users. This follows RESTful conventions where GET is used to retrieve data without side effects. The full URL includes the base and the resource, resulting in the correct endpoint.
- ✗
GET https://api.example.com/v1/user
Why it's wrong here
The resource path is specified as /users (plural). Using /user (singular) would likely result in a 404 or may refer to a different resource. REST APIs often use plural nouns for collections, so the correct path is /users.
- ✗
POST https://api.example.com/v1/users
Why it's wrong here
POST is used to create a new resource, not to retrieve a list. Sending a POST to /v1/users would typically create a new user, potentially causing unintended side effects. The scenario requires retrieving all users, so POST is inappropriate.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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