Exam 350-901 topic 1 question 96 discussion

Answer is C. You are trying to write in a RO field. You have to append "routing/" to move to the RW field. you can visualize this using pyang. $ pyang -f tree ietf-routing.yang module: ietf-routing +--ro routing-state | +--ro routing-instance* [name] .. +--rw routing +--rw routing-instance* [name]

Correct answer: C /ietf-routing:routing/routing-instance=default/ https://algoderedes.com/en/restconf-operational-variables/

Basically, if you look at https://algoderedes.com/en/restconf-operational-variables/ you can see the ietf-routing module has two containers, one is read only (routing-instance) and the other is read write (routing). In the question the user is trying to make configurations via the read only container hence the error. So switch it to the read write container (Answer C).

https://algoderedes.com/en/restconf-operational-variables/

The current path is incorrect and the correct path is: /ietf-routing:routing/routing-instance=default/

I agree that it is C. Like others said, the initial request tried to write to a RO endpoint (state) and not a RW endpoint

Source: Cisco DEVCOR 350-901 Study Guide IETF is a standards body that builds models through the same process that brings the other IETF standards. OpenConfig is an informal working group of network operators who joined forces to build a set of YANG models that meet their requirements. url_route = \ f"{base}/ietf-routing:routing/routing-instance=default/routing-protocols/" \ f"routing-protocol=static,1/static-routes/ipv4"

I think C is the answer but not because there ir no body,... Its because the container routing-state of the yang module ietf-routing it's not for configuration... it's read only and that's why the error message said "object is not writible". So... the user try a POST request with a JSON body message, but his error is to trying create a routing instance using a read-only container or url.

I think this is C, (there is no body)