What eliminates switching loops?
- Time to Live
- VTP
- hold-down timers
- poison reverse
- Spanning Tree Protocol
Explanation: Spanning tree creates a single path through a switch network. This is important at Layer 2 because there is no feature such as the Layer 3 TTL to stop data from traveling infinitely through the network. This helps keep switch MAC address tables stable in broadcast storms, and when multiple frames are sent.
Exam with this question: CCNA 3 (v5.0.3 + v6.0) Pretest Exam Answers
Please login or Register to submit your answer