Which statement regarding a loopback interface is true?
- It is an internal virtual interface used for testing purposes.
- It is used to loop back traffic to an interface.
- It must be enabled using the no shutdown command.
- Only one loopback interface can be created on a device.
Explanation: The loopback interface is useful in testing and managing a Cisco IOS device because it ensures that at least one interface will always be available. For example, it can be used for testing purposes, such as testing internal routing processes, by emulating networks behind the router.
Exam with this question: 1.6.4 Module Quiz - Basic Device Configuration Answers
Please login or Register to submit your answer