Cisco CCNA Network Automation and APIs 5

Question 1

Which protocol operates over TCP port 830 and is used for network device configuration?

Accepted Answer

NETCONF

Answer

NETCONF uses SSH (TCP port 830) as its transport protocol for secure device configuration.

Question 2

What is RESTCONF, and how does it relate to NETCONF?

Accepted Answer

RESTCONF is a REST-based protocol that exposes NETCONF data stores over HTTP/HTTPS

Answer

RESTCONF (RFC 8040) provides a RESTful HTTP interface to the same YANG-modeled data stores used by NETCONF.

Question 3

In an Ansible playbook, what is the purpose of the 'vars' section?

Accepted Answer

It defines variable values used throughout the playbook

Answer

The 'vars' section in a playbook defines variables that can be referenced in tasks using {{ variable_name }} syntax.

Question 4

What is the purpose of the 'Accept' HTTP header in a REST API request?

Accepted Answer

It tells the server what data format the client wants in the response

Answer

The Accept header indicates the media type(s) the client can process, telling the server what format to use for the response.

Question 5

Which of the following is a characteristic of a stateless REST API?

Accepted Answer

Each request must contain all information needed; the server stores no client state

Answer

REST's stateless constraint means every request is self-contained; the server retains no session state between requests.

Cisco CCNA Practice Test