A network administrator receives the output “Serial0 is up, line protocol is down” from the show interface s0 command. At what layer is this problem most likely being caused?

ITExamAnswers Editorial Team Last Updated: Apr 24, 2024

IT Exam Items Repository › Category: CCNA 4 v4.0 EWAN › A network administrator receives the output “Serial0 is up, line protocol is down” from the show interface s0 command. At what layer is this problem most likely being caused?

A network administrator receives the output “Serial0 is up, line protocol is down” from the show interface s0 command. At what layer is this problem most likely being caused?

Physical layer
Data link layer
Network layer
Transport layer

Explanation: The first part, “Serial0 is up,” indicates that the physical layer is operational. The second part, “line protocol is down,” indicates a Layer 2 problem.

About The Author

ITExamAnswers Editorial Team

The ITExamAnswers Editorial Team is a dedicated group of certified IT professionals and network engineers. We rigorously review, verify, and update all exam materials to ensure you receive the most accurate and reliable resources for your certification journey.