WRONG .
One characteristic of Cisco DNA Center and vManage northbound APIs is that they implement the RESTCONF (RESTful Network Configuration Protocol) protocol. RESTCONF is a standard protocol that provides a programmatic interface for accessing and managing network devices. It is based on the principles of REST (Representational State Transfer) and uses HTTP methods (such as GET, POST, PUT, DELETE) to perform operations on network resources.
So, the correct answer is C. They implement the RESTCONF protocol.
WRONG. Restconf/Netconf Southbound API. Nortbound exchange Json content ( even if Rest API could also use xml, but with cisco json is used). The correct answer is A. Using a Northbound Api you could get access in the VManage/Dnac center and push configuration down to device
Northbound API is RESTful using JSON/XML so B.
C,D are incorrect because they are protocol used to configure "south device". The Vmanage soutbound interface is indeed Netconf/Restconf/SNMP etc. The A is incorrect because Vmanage doesn't push configuration soutbound. The correct answer is B, cause fomatted code in XML is a characteristic of Restful (northbound api)
Sorry. Correct Answer is A. Restconf/Netconf are Southbound API. Northbound API (Rest) exchange Json content ( even if Rest API could also use xml, but with cisco json is used). The correct answer is A. Using a Northbound Api you could get access in the VManage/Dnac center and push configuration down to device
Provided answer is correct:
DNA Center uses REST APIs on Northbound interface. With this REST APIs, developers and users can communciate with DNA Center. On Southbound interface, DNA Center uses various protocols like RESTCONF, NETCONF etc. With this interface, DNA Center can communciate with the devices it manages. Under this interface there are both the devices that support SDN protocols like NETCONF, RESTCONF etc. and traditional devices that support SNMP,Telnet, SSH.
Northbound interface specification consists of an XML DTD (data definition dictionary) specification that defines the data format to be exchanged between external applications and the Java API. The Northbound client application retrieves network topology and configuration through the Northbound Interface as XML data.
Option B is not correct because Cisco DNA Center and vManage northbound APIs primarily use REST (Representational State Transfer) APIs, which typically exchange data in JSON format rather than XML. While it's possible to use XML with REST APIs, the standard and most commonly used format is JSON due to its simplicity and widespread adoption. correct ans is C
I don't have a deep knowlede on automation but my choice would be B based on:
northbound interface (intent API) which use REST API based on HTTP has the message body in JSON or XML format.
The southbound interface (SDK) uses NETCONF and RESTCONF to communicate with the devices
https://ipcisco.com/lesson/cisco-dna-center/
Both Cisco DNA Center and vManage utilize RESTCONF for their northbound APIs, allowing them to provide a programmatic interface for managing and configuring network devices.
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