Spanning-Tree Protocol is used with which of the following network devices?

A.
Router

B.
NIC

C.
Switch

D.
DHCP server

Explanation:
Spanning Tree Protocol (STP) is a Layer 2 protocol that runs on bridges and switches. The
specification for STP is IEEE 802.1D. The main purpose of STP is to ensure that you do not create
loops when you have redundant paths in your network. Loops are deadly to a network.