A developer is troubleshooting a REST API call that is supposed to update the MTU of an interface. The API documentation says that PUT replaces the entire resource and PATCH updates only specified fields. The developer sends a PUT request with only the MTU field, and the response returns a 200 OK, but the interface's description is now empty. What is the most likely cause?

The developer used the wrong data encoding

The developer should have used PATCH to preserve other fields

The server has a bug that clears the description on any update

The server interpreted the PUT as a partial update

Which statement correctly describes XML as a data encoding format in REST APIs?

XML uses angle-bracket tags to define elements and attributes, and it is self-descriptive.

XML is primarily used for tabular data with rows and columns.

XML is a binary format that requires special encoding.

XML uses curly braces to define objects and arrays.

CiscoCertified Network Associate (CCNA)

Domain 6Objective 5

6.5 Describe Characteristics of REST-based APIs (authentication Types, CRUD, HTTP Verbs, and Data Encoding) 200-301 Practice Questions (Page 5)

Part of the Automation and Programmability domain, which accounts for 10% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~5–8 in this domain), expect 1–1 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

4concepts

10%of the exam

Questions 21–25

21expert · hard
A developer is troubleshooting a REST API call that is supposed to update the MTU of an interface. The API documentation says that PUT replaces the entire resource and PATCH updates only specified fields. The developer sends a PUT request with only the MTU field, and the response returns a 200 OK, but the interface's description is now empty. What is the most likely cause?
Select an answer first
22application · medium
A network administrator is writing a script to delete an old access control list (ACL) from a router using a REST API. The API endpoint /acls/{id} is used to manage ACL resources. Which HTTP verb should the script use to remove the ACL?
Select an answer first
23application · easy
A network automation engineer is using a REST API to update the hostname of a switch. The API documentation states that the resource is /api/v1/device/{id} and the payload only needs to contain the new hostname field. Which HTTP verb should the engineer use to make this partial update?
Select an answer first
24foundation · easy
Which statement correctly describes XML as a data encoding format in REST APIs?
Select an answer first
25application · medium
A network administrator is writing a script to retrieve a list of all configured VLANs from a switch using a REST API. The API endpoint /vlans returns a JSON array. Which HTTP verb should the script use?
Select an answer first

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6.5 Describe Characteristics of REST-based APIs (authentication Types, CRUD, HTTP Verbs, and Data Encoding) 200-301 Practice Questions (Page 5)

Questions 21–25

A network administrator is writing a script to delete an old access control list (ACL) from a router using a REST API. The API endpoint /acls/{id} is used to manage ACL resources. Which HTTP verb should the script use to remove the ACL?

A network automation engineer is using a REST API to update the hostname of a switch. The API documentation states that the resource is /api/v1/device/{id} and the payload only needs to contain the new hostname field. Which HTTP verb should the engineer use to make this partial update?

Which statement correctly describes XML as a data encoding format in REST APIs?

A network administrator is writing a script to retrieve a list of all configured VLANs from a switch using a REST API. The API endpoint /vlans returns a JSON array. Which HTTP verb should the script use?

Keep studying — Automation and Programmability