An engineer uses a type of network adapter to connect a fiber link to a router.The transcelver fisinto an optical interface on a layer 3 Ethemet router. Of the choices, which layer 1 Implementation does the engineer utilize? Media converter Bridge VolP endpoint Switch

## Step 1<br />The problem is asking us to identify the correct layer 1 implementation that an engineer would use to connect a fiber link to a router. The options provided are Media converter, Bridge, VoIP endpoint, and Switch.<br /><br />## Step 2<br />We need to understand what each of these options does. A Media converter is a device that converts one type of signal to another. A Bridge is a product that connects a local area network (LAN) to another local area network that uses the same protocol (such as Ethernet or Token Ring). A VoIP endpoint is a device that uses Voice over Internet Protocol (VoIP) technology to make and receive calls over the internet. A Switch is a networking device that filters and forwards packets between LAN segments.<br /><br />## Step 3<br />Given the context of the problem, we are looking for a device that can convert the fiber link into an optical interface on a layer 3 Ethernet router. This is exactly what a Media converter does. It converts one type of signal to another, which in this case would be the conversion of a fiber link into an optical interface.