350-401 · Question #708
350-401 Question #708: Real Exam Question with Answer & Explanation
The correct answer is C: R1#netconf-yang. Explanation Option C (netconf-yang) is correct because the exhibit likely shows a NETCONF/YANG-based login attempt (typically over SSH port 830), and enabling netconf-yang on the router activates the NETCONF agent, which is required to allow that type of management session to suc
Question
Refer to the exhibit. An engineer tries to log in to router R1. Which configuration enables a successful login?
Options
- AR1#username admin privilege 15
- BR1#username admin privilege 15
- CR1#netconf-yang
- DR1#aaa new-model
Explanation
Explanation
Option C (netconf-yang) is correct because the exhibit likely shows a NETCONF/YANG-based login attempt (typically over SSH port 830), and enabling netconf-yang on the router activates the NETCONF agent, which is required to allow that type of management session to succeed.
Options A and B involve creating a local username with privilege level 15, which is necessary for authentication but alone is insufficient to enable a NETCONF login - without the NETCONF service being enabled, the connection cannot be established regardless of credentials. Option D (aaa new-model) enables AAA authentication, which is also a supporting component but does not itself activate the NETCONF interface that the engineer is trying to use.
Memory Tip: Think of it this way - NETCONF needs to be "turned on" before anyone can log in through it. Just like you can't unlock a door that doesn't exist yet; netconf-yang creates the door, while usernames and AAA only determine who can walk through it.
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