Question 1mediummatching
Full question →Match each HTTP method to the most common API action.
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mediummatchingObjective-mapped
Match each HTTP method to the most common API action.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A frequent exam trap is mixing up POST and PUT methods because both send data to the server. Candidates often assume POST updates existing resources, but POST actually creates new ones and is not idempotent. PUT replaces or creates resources at a specific URI and is idempotent. Misunderstanding this can lead to incorrect API usage, causing duplicate configurations or unintended overwrites in network automation. Remembering that POST is for creation and PUT is for replacement helps avoid this confusion.
Technical deep dive
How to think about this question
HTTP methods define how clients interact with RESTful APIs, which are widely used in Cisco network automation and programmability. GET requests retrieve data without side effects, making them safe for querying device states or configurations. POST requests submit data to create new resources, such as adding a new VLAN or interface configuration. PUT requests replace or create resources at a specified URI, useful for updating entire configurations. DELETE requests remove resources, such as deleting an ACL or interface configuration. The decision process for choosing the correct HTTP method depends on the desired API action. GET is used when the goal is to read or retrieve information without altering the network device state. POST is appropriate when creating new configurations or entries that do not yet exist. PUT is selected when replacing or updating an existing configuration completely, ensuring idempotency. DELETE is used to remove configurations or resources safely. Cisco network automation scripts rely on these conventions to maintain consistent device states and avoid unintended changes. A common exam trap is confusing POST and PUT methods, as both can send data to the server but have different effects. POST creates new resources and is not idempotent, so repeated POSTs can create duplicates. PUT replaces resources and is idempotent, so repeated PUTs have the same effect as one. Misusing these methods in Cisco automation can cause configuration errors or duplication. Understanding the idempotency and side effects of each HTTP method is critical for reliable network programmability and passing the CCNA exam.
KKey Concepts to Remember
- The HTTP GET method retrieves data from a server without modifying any resources, making it safe and idempotent for read-only operations in APIs.
- The HTTP POST method creates new resources on the server by submitting data, and it is neither safe nor idempotent because it changes server state.
- The HTTP PUT method replaces an existing resource entirely or creates it if it does not exist, and it is idempotent because repeated requests produce the same result.
- The HTTP DELETE method removes a specified resource from the server and is idempotent since deleting a non-existent resource has no further effect.
- In Cisco automation and programmability, understanding HTTP methods is essential for interacting with RESTful APIs that manage network devices and configurations.
- Correctly matching HTTP methods to their API actions ensures predictable network automation behavior and prevents unintended configuration changes or data loss.
- Misusing HTTP methods in network automation scripts can cause state inconsistencies, such as overwriting configurations with PUT instead of creating new entries with POST.
- API design in Cisco environments follows REST principles where each HTTP method has a defined semantic role, critical for reliable 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.
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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
A router learns route 198.51.100.0/24 from OSPF with AD 110 and also has a static route to the same prefix configured with AD 150. Which route is installed?
FAQ
Questions learners often ask
What does this 200-301 question test?
The HTTP GET method retrieves data from a server without modifying any resources, making it safe and idempotent for read-only operations in APIs.
What exam trap should I watch out for?
Common exam trap: answer the scenario, not the keyword: A frequent exam trap is mixing up POST and PUT methods because both send data to the server. Candidates often assume POST updates existing resources, but POST actually creates new ones and is not idempotent. PUT replaces or creates resources at a specific URI and is idempotent. Misunderstanding this can lead to incorrect API usage, causing duplicate configurations or unintended overwrites in network automation. Remembering that POST is for creation and PUT is for replacement helps avoid this confusion.
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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