The LAN needs are expanding at the ConsciousVibes corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the ConsciousVibes network. Which of the following are layer 1 devices that you can use? (Choose all that apply.)

3 & 4 which are the Hub and the Repeater.  To enlarge  the area covered by a single LAN Segment (a single collision domain), a hub (multiport repeater) will help you achieve this.

Explanation:

The complete question is as follows : The LAN needs are expanding at the ConsciousVibes corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the ConsciousVibes network. Which of the following are layer 1 devices that you can use? (Choose all that apply.)

1. Switch

2. NIC

3. Hub

4. Repeater

5. RJ45 transceiver