4A0-105: Nokia Virtual Private LAN ServicesDemo

By Nokia · Question Mode

QuestionQ78

VPLS loop avoidance

A limitation of Spanning Tree Protocol (STP) is that it calculates a valid, but not always optimal, path between network nodes.

  • A TRUE
  • B FALSE
Explanation

STP creates a loop-free topology by blocking redundant Layer 2 links. Although the resulting path is valid, the tree-based design can leave otherwise useful links blocked and therefore does not guarantee an optimal path between every pair of nodes.

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