4.6 Configure and Verify NETCONF and RESTCONF 350-401 Practice Questions (Page 8)

Questions 36–40

1. 36expert · hard

   A network engineer is troubleshooting a NETCONF issue where a client can establish an SSH connection to the device, but the NETCONF hello message is not received. The engineer has enabled netconf-yang and SSH. What is the most likely cause?

   • AThe device is not configured with a hostname.
   • BThe client is using the wrong username.
   • CThe client is not using the NETCONF SSH subsystem.
   • DThe device does not have any YANG models loaded.
   Reveal Solution Discussion Select an answer first
2. 37foundation · easy

   In a NETCONF message exchange, what is the purpose of the <hello> message?

   • ATo close the session.
   • BTo request the configuration of a device.
   • CTo authenticate the user.
   • DTo exchange capabilities between the client and server.
   Reveal Solution Discussion Select an answer first
4. 38application · medium

   A network engineer is troubleshooting why a NETCONF client cannot connect to a Cisco IOS XE router. The router has 'netconf-yang' enabled, SSH is configured, and the client can ping the router. The client is using port 830. Which additional check should the engineer perform?

   • AVerify that the router has a default route configured
   • BVerify that the router's clock is synchronized with NTP
   • CVerify that the router's hostname is resolvable via DNS
   • DVerify that the client is using the correct username and password
   Reveal Solution Discussion Select an answer first
5. 39application · medium

   A network engineer is using NETCONF to retrieve the running configuration of an interface on a Cisco IOS XE device. The engineer sends an RPC and receives a reply that contains the requested data. Which NETCONF operation was used?

   • Aedit-config
   • Bget-config
   • Ccopy-config
   • Dlock
   Reveal Solution Discussion Select an answer first
6. 40expert · hard

   A network engineer is troubleshooting a NETCONF issue where the client receives an <rpc-error> with error-tag 'invalid-value' when sending an <edit-config> to set the description of an interface. The engineer has verified that the interface exists and the YANG module is correct. What is the most likely cause?

   • AThe client is trying to modify a read-only leaf
   • BThe client is using the wrong datastore in the target
   • CThe client is sending a value that does not conform to the YANG model's constraints
   • DThe client is using the wrong namespace in the XML payload
   Reveal Solution Discussion Select an answer first