Which one of the following options is the main purpose for using spanning tree protocol?
A. Layer 2 routing protocol
B. Layer 2 loop prevention protocol
C. Layer 2 frame speed double verification protocol
D. Layer 3 routing protocol
Which one of the following options is the main purpose for using spanning tree protocol?
A. Layer 2 routing protocol
B. Layer 2 loop prevention protocol
C. Layer 2 frame speed double verification protocol
D. Layer 3 routing protocol