Knowledge domainIdentify, describe, and apply foundational networking architectures and technologies.
Learning topic1 of 11
Questions5 questions
Study time15 min
AccessFree read-only learning
Question 1single_choice
OSI layer roles
A technician connects two CX switches with a fiber uplink. Users on the access switch cannot reach a server in another subnet. The link LEDs at both ends are dark, and both uplink ports report down. Which check should the technician perform first?
