Which protocol prevents loops and calculates the best path through a switched network that contains redundant paths?

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Which protocol prevents loops and calculates the best path through a switched network that contains redundant paths?
A . VRRP
B . STP
C . DHCP
D . IS-IS

Answer: B

Explanation:

Spanning Tree Protocol (STP) is a Layer 2protocol that runs on bridges and switches. The main purpose

of STP is to ensure that you do not create loops when you have redundant paths in your network