CompTIA
N10-005 · Question #718
N10-005 Question #718: Real Exam Question with Answer & Explanation
The correct answer is A: Spanning Tree Protocol. Spanning Tree Protocol (STP) is the IEEE 802.1D standard specifically designed to detect and prevent switching loops in Ethernet networks.
Question
Which of the following protocols is used to detect and eliminate switching loops within a network?
Options
- ASpanning Tree Protocol
- BEIGRP
- COSPF
- DDynamic routing
Explanation
Spanning Tree Protocol (STP) is the IEEE 802.1D standard specifically designed to detect and prevent switching loops in Ethernet networks.
Common mistakes.
- B. EIGRP is a Layer 3 distance-vector routing protocol used for IP routing between routers, not for preventing Layer 2 switching loops.
- C. OSPF is a Layer 3 link-state routing protocol used for inter-router routing, not for eliminating Layer 2 switching loops on switches.
- D. Dynamic routing is a general category of routing protocols that manage Layer 3 path selection; it has no mechanism to detect or eliminate Layer 2 switching loops.
Concept tested. Spanning Tree Protocol loop prevention at Layer 2
Reference. https://www.cisco.com/c/en/us/tech/lan-switching/spanning-tree-protocol/index.html
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