CCNA Network Services and Security Practice Question
This 200-301 practice question tests your understanding of network services and security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: gET HTTP method retrieves data from a REST API without modifying the resource or server state.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Match each HTTP method to its common REST API action.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
GET - Retrieve data
GET retrieves data; POST creates; PUT replaces; PATCH partially updates; DELETE removes; OPTIONS queries available methods.
Key principle: GET HTTP method retrieves data from a REST API without modifying the resource or server state.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
GET - Retrieve data
Why this is correct
GET is used to retrieve data from a server without modifying any resources. It is a safe and idempotent method.
Related concept
GET HTTP method retrieves data from a REST API without modifying the resource or server state.
✗
GET - Create data
Why it's wrong here
This is incorrect because GET is not used for creating data; creation is typically done with POST.
✗
POST - Retrieve data
Why it's wrong here
This is incorrect because POST is used to create resources, not retrieve them. Retrieval is done with GET.
✗
PUT - Partially update data
Why it's wrong here
This is incorrect because PUT is used to replace an entire resource, while partial updates are done with PATCH.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓GET - Retrieve dataCorrect answer▾
Why this is correct
GET is used to retrieve data from a server without modifying any resources. It is a safe and idempotent method.
✗GET - Create dataWrong answer — click to see why▾
Why this is wrong here
GET is a read-only operation and should not have side effects on the server.
Why candidates choose this
Candidates might confuse GET with POST because both are common HTTP methods, but GET is not intended for creation.
✗POST - Retrieve dataWrong answer — click to see why▾
Why this is wrong here
POST is not safe or idempotent and is intended for submitting data to be processed, often resulting in a new resource.
Why candidates choose this
Candidates may think POST can retrieve data because it can send a body, but standard REST practices use GET for retrieval.
✗PUT - Partially update dataWrong answer — click to see why▾
Why this is wrong here
PUT is idempotent and replaces the resource at the given URI with the request payload; PATCH applies partial modifications.
Why candidates choose this
Candidates often confuse PUT and PATCH because both are used for updates, but PUT replaces the whole resource.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
Be careful not to confuse PUT (full replacement) with PATCH (partial update). Also, remember that GET is read-only and should not create or modify data.
Detailed technical explanation
How to think about this question
HTTP methods define how clients interact with REST APIs, which are essential in modern network automation and Cisco programmability. GET is a safe and idempotent method used solely to retrieve data from a server without modifying any resources. POST is used to create new resources on the server, often resulting in a new URI or resource identifier. PUT replaces or updates an existing resource entirely, making it idempotent, meaning multiple identical requests have the same effect as one. DELETE removes a resource permanently from the server.
The decision process for matching HTTP methods to REST API actions depends on the resource's lifecycle and the desired operation. GET is always for reading data, never changing it. POST is the method of choice when creating new entries or triggering operations that result in new resources. PUT requires the client to send the complete updated resource representation, replacing the old one. DELETE is straightforward, instructing the server to remove the specified resource. These rules are consistent across Cisco's network automation tools that use REST APIs, such as Cisco DNA Center and Cisco IOS XE programmability.
A frequent exam trap involves confusing POST and PUT, as both can modify server state but serve different purposes. POST creates new resources and is not idempotent, while PUT updates existing resources and is idempotent. Misunderstanding this leads to incorrect answers. Practically, in Cisco automation, using the wrong method can cause unintended network changes or errors. Understanding these distinctions ensures precise API calls, which is critical for network reliability and automation success.
KKey Concepts to Remember
GET HTTP method retrieves data from a REST API without modifying the resource or server state.
POST HTTP method creates a new resource on the server and is not idempotent, meaning repeated calls create multiple resources.
PUT HTTP method replaces or updates an existing resource completely and is idempotent, so repeated calls have the same effect as one.
DELETE HTTP method removes a resource permanently from the server, effectively deleting it from the REST API.
REST API methods map directly to CRUD operations: GET for read, POST for create, PUT for update, and DELETE for delete.
Cisco network automation tools use these HTTP methods consistently to manage network device configurations and data.
Confusing POST and PUT methods is a common exam mistake because both modify resources but serve different lifecycle roles.
Understanding HTTP method idempotency helps predict the effect of repeated API calls in Cisco network programmability.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
GET HTTP method retrieves data from a REST API without modifying the resource or server state.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 200-301 question in full detail.
Review gET HTTP method retrieves data from a REST API without modifying the resource or server state., then practise related 200-301 questions on the same topic to reinforce the concept.
Network Services and Security — This question tests Network Services and Security — GET HTTP method retrieves data from a REST API without modifying the resource or server state..
What is the correct answer to this question?
The correct answer is: GET - Retrieve data — GET retrieves data; POST creates; PUT replaces; PATCH partially updates; DELETE removes; OPTIONS queries available methods.
What should I do if I get this 200-301 question wrong?
Review gET HTTP method retrieves data from a REST API without modifying the resource or server state., then practise related 200-301 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
GET HTTP method retrieves data from a REST API without modifying the resource or server state.
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Question Discussion
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