Match each HTTP method to the action it most commonly represents in a REST-style API.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A frequent exam trap is mixing up the POST and PUT HTTP methods. Both modify resources, but POST is generally used to create new resources or submit data for processing and is not idempotent, meaning repeated POSTs can create multiple resources. PUT, however, replaces or updates a resource at a specific URI and is idempotent, so repeated PUT requests have the same effect as one. Confusing these can lead to incorrect assumptions about resource state changes in REST APIs, causing automation scripts to behave unexpectedly or network configurations to be overwritten unintentionally.
Technical deep dive
How to think about this question
HTTP methods define the actions clients request from servers in RESTful APIs, which are widely used in network automation and programmability. GET is designed to retrieve data without causing side effects, making it safe and idempotent. POST is used to submit data that often results in resource creation or processing, and it is not idempotent. PUT replaces or updates a resource entirely at the given URI and is idempotent, meaning repeated requests have the same effect as one. DELETE removes the resource identified by the URI and is also idempotent. In Cisco network automation, these HTTP methods map directly to common CRUD operations on network device configurations or telemetry data. For example, a GET request might retrieve interface status, POST could create a new VLAN, PUT might update an ACL entry, and DELETE would remove a routing policy. Recognizing these mappings helps network engineers understand automation scripts and API documentation, enabling effective use of programmability features in Cisco devices. A common exam trap is confusing POST and PUT methods, as both can modify resources but differ in idempotency and intent. POST is for creating or processing data without guaranteeing the same result on repeated calls, while PUT replaces the resource entirely and is idempotent. Misunderstanding this can lead to incorrect API usage in automation workflows, causing unintended configuration changes or failures in network programmability tasks.
KKey Concepts to Remember
- The HTTP GET method retrieves or reads data from a REST API without modifying the resource state on the server.
- The HTTP POST method submits data to the server, commonly used to create new resources or trigger processing in REST APIs.
- The HTTP PUT method updates or replaces an existing resource entirely at the specified URI in a RESTful service.
- The HTTP DELETE method removes or deletes the specified resource from the server in REST API interactions.
- REST APIs use HTTP methods as standardized verbs to represent CRUD (Create, Read, Update, Delete) operations in network programmability.
- Understanding HTTP methods is essential for interpreting automation workflows and API calls in Cisco network programmability contexts.
- Misinterpreting HTTP methods can lead to incorrect assumptions about resource state changes, causing configuration or automation errors.
- Cisco’s network automation examples frequently use these HTTP methods to interact with device configurations and telemetry data.
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
A non-root switch has two uplinks toward the root bridge. One path has a lower total STP cost than the other. What role will the lower-cost uplink have?
Question 5
A router interface applies this ACL inbound: 10 deny tcp any any eq 80 20 permit ip any any A user reports that web browsing to a server by IP address fails, but ping works. Which statement best explains the behavior?
Question 6
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FAQ
Questions learners often ask
What does this 200-301 question test?
The HTTP GET method retrieves or reads data from a REST API without modifying the resource state on the server.
What exam trap should I watch out for?
Common exam trap: answer the scenario, not the keyword: A frequent exam trap is mixing up the POST and PUT HTTP methods. Both modify resources, but POST is generally used to create new resources or submit data for processing and is not idempotent, meaning repeated POSTs can create multiple resources. PUT, however, replaces or updates a resource at a specific URI and is idempotent, so repeated PUT requests have the same effect as one. Confusing these can lead to incorrect assumptions about resource state changes in REST APIs, causing automation scripts to behave unexpectedly or network configurations to be overwritten unintentionally.
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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