Question 1easymulti select
Full question →easymulti selectObjective-mapped
A developer is interacting with a REST API exposed by a network controller. Which two statements correctly describe common REST behavior?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
GET is commonly used to retrieve resource data
GET requests are typically read operations.
B
Distractor review
POST always replaces an existing resource completely
POST usually creates or triggers processing; PUT is more associated with full replacement.
C
Best answer
JSON is a common data format used in REST APIs
Many controllers exchange structured data as JSON.
D
Distractor review
REST requires SNMP as the transport mechanism
REST commonly uses HTTP or HTTPS, not SNMP.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is assuming that POST always replaces an existing resource completely, which is incorrect. In REST API design, POST is typically used to create new resources or trigger server-side processing, whereas PUT is the method that fully replaces an existing resource. Confusing these two can lead to incorrect assumptions about how network controllers handle configuration changes or data updates. This misunderstanding may cause candidates to select POST as the answer for resource replacement questions, which is a frequent mistake in Cisco automation and programmability topics.
Technical deep dive
How to think about this question
REST (Representational State Transfer) is an architectural style used for designing networked applications. It relies on stateless communication and standard HTTP methods like GET, POST, PUT, and DELETE to perform operations on resources identified by URIs. In Cisco automation and programmability, REST APIs enable network controllers to expose resources such as device configurations, telemetry data, or operational states in a standardized way. The GET method is primarily used to retrieve resource data without modifying the server state, making it ideal for read-only operations. JSON (JavaScript Object Notation) is a lightweight, human-readable data format widely used in REST APIs for exchanging structured information between clients and network controllers. Cisco network devices and controllers commonly support JSON payloads for configuration and monitoring tasks. A common exam trap involves confusing POST and PUT methods. POST typically creates a new resource or triggers processing, while PUT replaces an existing resource completely. Understanding this distinction is crucial for correctly interpreting REST API behavior in Cisco automation scenarios. Practically, network engineers use GET to fetch device states and JSON to parse responses efficiently when automating network management.
KKey Concepts to Remember
- REST APIs use HTTP methods such as GET, POST, PUT, and DELETE to perform operations on network resources exposed by controllers.
- The GET method retrieves resource data without modifying the server state, making it a safe and idempotent operation.
- JSON is a common data format used in REST APIs to represent structured information exchanged between clients and network devices.
- POST requests usually create new resources or trigger processing, but do not necessarily replace existing resources completely.
- PUT requests replace an existing resource entirely, which differs from POST behavior in REST API design.
- REST APIs commonly use HTTP or HTTPS as the transport protocol, not SNMP or other network management protocols.
- Network controllers expose REST APIs to enable programmability and automation of device configurations and telemetry.
- Understanding the correct use of HTTP methods and data formats is essential for effective network automation with Cisco controllers.
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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A router learns the same prefix from both OSPF and EIGRP. Which route is installed by default?
Question 2
A router shows this output: R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.1.1.2 1 FULL/DR 00:00:34 192.168.12.2 GigabitEthernet0/0 10.1.1.3 1 2WAY/DROTHER 00:00:39 192.168.12.3 GigabitEthernet0/0 Which statement is correct?
Question 3
What is the OSPF metric called?
Question 4
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Question 5
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Question 6
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FAQ
Questions learners often ask
What does this 200-301 question test?
REST APIs use HTTP methods such as GET, POST, PUT, and DELETE to perform operations on network resources exposed by controllers.
What is the correct answer to this question?
The correct answer is: GET is commonly used to retrieve resource data — REST APIs commonly use HTTP methods such as GET, POST, PUT, and DELETE, and JSON is one of the most common payload formats.
What should I do if I get this 200-301 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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