Some employers place this on their want ads.

Ithink the answer is letter d

This is an opinion based question, someone on the internet can’t answer it for you. it’s not like a math problem that has the same solution, this comes from your brain and what you think.

Once the twisted pair cable is connected and a network is established the led lights at the back of the computer should be steady. on most ethernet adapters nowadays, a steady green light means that the connection is actively connected to a valid partner at the opposite end. if the status of the led starts flashing, this means that there’s some activity and data is being transferred.