Chapter 4 Cisco DNA

Question 1

Characteristics of traditional networks

Answer 1

• Control and data planes are tightly coupled within each network device
• Network management is primarily device-centric and requires manual configuration of individual devices with a direct interaction on the device
• Troubleshooting requires accessing individual devices and logs are stored locally
• Limited automation capabilities based on scripts and templates

Question 2

Characteristics of Software-defined networks

Answer 2

• Separation of control and data planes, with centralized control plane management
• Network management is policy-based and centralized through a controller
• Changes can be implemented network-wide from a single point of control
• Enhanced visibility and troubleshooting through centralized monitoring and analytics
• Advanced automation capabilities with programmable interfaces (APIs)

Question 3

What are the 4 types of Cisco DNA APIs\

Answer 3

Network assurance (westbound)
Intent (northbound)
Events and notifications (eastbound)
Multivendor Support APIs/SDK (southbound)

Question 4

What are event and notifications API in cisco DNA Center

Answer 4

Event and notification allow the device to send data to a server that receive http requests (web application)

Question 5

What are the parameters in the header of a Cisco DNA API call

Answer 5

“Content-Type” : “application/json”,
“x-auth-token” : token

Question 6

Troubleshooting Cisco DNA API calls

Answer 6

CREATE, UPDATE, DELETE operation in Cisco DNA Center done with APIs return a task id.
Running a get request with the url dna/intent/api/v1/task/{task_id} returns information about the task