M02-01Physical · quiz
Layer 1 Triage
Before you touch IP settings, rule out the physical layer. Each case tests a cabling, fiber, PoE or duplex decision the exams love.
1
You need a 300 m run between two buildings. Which medium fits?
2
A link is up but slow, with rising late collisions and CRC errors. What is the cause?
3
Which connector terminates copper twisted-pair Ethernet?
4
You add several PoE cameras and some stop working intermittently. What did you most likely exceed?
5
A user says 'no network'. Following a layered method, what do you check FIRST?