You are configuring NTP on your switch. You want to configure the switch so if any interface fails, NTP will still be available. Which type of interface should you use? Choose the best answer.

You should configure a loopback interface on the switch with the IP address of the NTP server the NTP clients will use. A tunnel interface and an NTP interface are incorrect options. Although a Switched Virtual Interface (SVI) would work, it is not active until at least one port is configured with the VLAN. Therefore, the SVI is still tied to a physical interface state.