N10-009 · Question #196
A network administrator received complaints of intermittent network connectivity issues. The administrator investigates and finds that the network design contains potential loop scenarios. Which of…
The correct answer is A. Enable spanning tree. To resolve intermittent network connectivity caused by potential network loop scenarios, the administrator should enable Spanning Tree Protocol (STP). STP prevents network loops by logically blocking redundant paths.
Question
A network administrator received complaints of intermittent network connectivity issues. The administrator investigates and finds that the network design contains potential loop scenarios. Which of the following should the administrator do?
Options
- AEnable spanning tree.
- BConfigure port security.
- CChange switch port speed limits.
- DEnforce 802.1Q tagging.
How the community answered
(32 responses)- A75% (24)
- B3% (1)
- C16% (5)
- D6% (2)
Why each option
To resolve intermittent network connectivity caused by potential network loop scenarios, the administrator should enable Spanning Tree Protocol (STP). STP prevents network loops by logically blocking redundant paths.
Spanning Tree Protocol (STP) is designed to prevent network loops by dynamically disabling redundant paths in a network topology, which can cause broadcast storms, MAC address table instability, and intermittent connectivity issues. By enabling STP, the protocol ensures a loop-free logical topology while still allowing for physical redundancy.
Port security is used to restrict the number of MAC addresses that can learn on a port, which helps prevent unauthorized devices but does not address network loops.
Changing switch port speed limits might affect performance but does not inherently solve network loop problems.
Enforcing 802.1Q tagging is used for VLAN trunking and identifying traffic for different VLANs, which is unrelated to preventing network loops.
Concept tested: Spanning Tree Protocol (STP) for loop prevention
Source: https://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/12039-1.html
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