A network has three switches connected in a triangle. The root bridge is Switch A. Switch B has two paths to Switch A: one directly and one through Switch C. Switch B's direct link to Switch A fails. What happens to Switch B's port that was connected to Switch C?

It becomes the root port and forwards immediately using the proposal/agreement handshake

It transitions from blocking to forwarding after the max age and forward delay timers expire

It remains in blocking state because STP does not reconverge

It immediately transitions to forwarding because it is an edge port

A network has four switches connected in a ring. The root bridge is Switch 1. Switch 2 has a root port to Switch 1 and an alternate port to Switch 4. Switch 3 has a root port to Switch 2 and an alternate port to Switch 4. If the link between Switch 2 and Switch 1 fails, what happens to Switch 2's alternate port?

It remains in blocking state because the root bridge is still reachable via Switch 3

It becomes the root port after the max age and forward delay timers expire

It immediately becomes the root port and forwards traffic

It becomes a designated port because the segment now needs a designated port

Juniper NetworksCertified Specialist, Enterprise Routing and Switching (JNCIS-ENT)

Domain 2Objective 1

STP and Rapid Spanning Tree Protocol Concepts JN0-352 Practice Questions (Page 3)

Part of the Spanning Tree domain, which makes up ~11% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–1 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

10concepts

Questions 11–15

11application · medium
An engineer is reviewing RSTP port roles on a switch. One port is receiving a superior BPDU from another switch on the same segment, but that other switch is not the root bridge. What is the role of this port?
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12application · medium
A network has three switches connected in a triangle. The root bridge is Switch A. Switch B has two paths to Switch A: one directly and one through Switch C. Switch B's direct link to Switch A fails. What happens to Switch B's port that was connected to Switch C?
Select an answer first
13foundation · easy
Which RSTP port role provides a redundant connection to the same segment as a designated port?
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14foundation · easy
Which problem can occur in a redundant switched network if Spanning Tree Protocol is not running?
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15application · medium
A network has four switches connected in a ring. The root bridge is Switch 1. Switch 2 has a root port to Switch 1 and an alternate port to Switch 4. Switch 3 has a root port to Switch 2 and an alternate port to Switch 4. If the link between Switch 2 and Switch 1 fails, what happens to Switch 2's alternate port?
Select an answer first

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STP and Rapid Spanning Tree Protocol Concepts JN0-352 Practice Questions (Page 3)

Questions 11–15

An engineer is reviewing RSTP port roles on a switch. One port is receiving a superior BPDU from another switch on the same segment, but that other switch is not the root bridge. What is the role of this port?

A network has three switches connected in a triangle. The root bridge is Switch A. Switch B has two paths to Switch A: one directly and one through Switch C. Switch B's direct link to Switch A fails. What happens to Switch B's port that was connected to Switch C?

Which RSTP port role provides a redundant connection to the same segment as a designated port?

Which problem can occur in a redundant switched network if Spanning Tree Protocol is not running?

Keep studying — Spanning Tree