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STP and RSTP Basics

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Questions and Answers

What action does a switch take when it is in an STP/RSTP blocking state in a particular VLAN?

Forwards all user traffic on that VLAN
Receives user traffic but does not send user traffic on that interface in that VLAN
Neither sends nor receives user traffic on that interface in that VLAN
Blocks all user traffic and does not send or receive user traffic on that interface in that VLAN (correct)

What is the primary purpose of STP/RSTP in an Ethernet LAN?

To prevent broadcast storms (correct)
To manage network topology
To prioritize critical traffic
To prevent network congestion

What is the effect of a broadcast storm on an Ethernet LAN?

It increases network security by encrypting broadcast frames
It has no impact on network performance
It slows down network performance by crowding out good frames (correct)
It improves network performance by reducing broadcast traffic

What is the characteristic of a switch interface in an STP/RSTP blocking state?

It is basically disabled and does not send or receive user traffic (B) Signup and view all the answers

What type of Ethernet frames are susceptible to looping around the network?

Broadcast frames, multicast frames, or unknown-destination unicast frames (C) Signup and view all the answers

What is the main reason for implementing STP/RSTP in an Ethernet LAN?

To prevent looping frames and the resulting broadcast storms (D) Signup and view all the answers

What is the primary purpose of Spanning Tree Protocol (STP) and Rapid STP (RSTP) in a LAN?

To prevent Ethernet frames from looping indefinitely (D) Signup and view all the answers

What is the outcome when STP or RSTP blocks some switch ports?

Frames are delivered to each device in the LAN with no issues (B) Signup and view all the answers

What is the main goal of STP and RSTP in terms of frame delivery?

To ensure frames are delivered to all devices in a VLAN (A) Signup and view all the answers

What is the significance of the term 'STP/RSTP' in this chapter?

It is a shorthand term to refer to both STP and RSTP together (A) Signup and view all the answers

What is the result of not using STP or RSTP in a LAN with redundant links?

Ethernet frames loop indefinitely (C) Signup and view all the answers

What additional check do STP and RSTP perform on each interface?

A check before sending or receiving user traffic (C) Signup and view all the answers