Examkin

Question

Difficulty: MediumCharacteristics of REST-Based APIs (CRUD, HTTP Verbs, Data Formats)

A network engineer is implementing automated API calls against a Cisco Catalyst Center controller. Match each HTTP request verb to its corresponding CRUD operation and database handling behavior.

  • HTTP POSTCreates a new resource subordinate to the specified collection URI (CRUD: Create).
  • HTTP PUTReplaces an existing resource in its entirety with the provided payload representation (CRUD: Update/Replace).
  • HTTP PATCHModifies only the specific fields supplied in the payload without resetting unreferenced parameters (CRUD: Update/Modify).
  • HTTP DELETERemoves the designated target resource from the API data store (CRUD: Delete).

Answer

HTTP POST matches creating a new collection resource (CRUD: Create); HTTP PUT matches full resource replacement (CRUD: Update/Replace); HTTP PATCH matches partial attribute updates (CRUD: Update/Modify); HTTP DELETE matches target resource removal (CRUD: Delete).
In REST-based automation, HTTP verbs map directly to specific CRUD operations: POST instantiates new entries, PUT performs a full resource replacement, PATCH updates partial attributes, and DELETE removes resources.

Step-by-Step Solution

1
Map the resource creation and deletion verbs to their primary CRUD definitions.
POST creates new sub-resources under a endpoint collection, while DELETE removes existing resources.
RESTful conventions define POST for creation operations and DELETE for resource removal.
2
Differentiate between full and partial resource update operations.
PUT executes a complete replacement of the entity, whereas PATCH updates only designated fields.
Sending a PUT request replaces the entire target state, while PATCH modifies specific attributes without wiping omitted parameters.

Key Concept

RESTful API HTTP Verbs and CRUD Mapping
Rate this question

Topics

Characteristics of REST-Based APIs (CRUD, HTTP Verbs, Data Formats)

More questions from this topic