A network administrator is troubleshooting a slow convergence issue in a classic STP network. They notice that a port takes 30 seconds to transition from blocking to forwarding. What is the most likely cause?

The hello time is set to 2 seconds

The max age timer is set to 20 seconds

The forward delay timer is set to 15 seconds

The port is configured as an edge port

In a classic STP network, a switch has a port that is in blocking state and is not the root port. Which additional characteristic is true for this port?

It is forwarding BPDUs to the root bridge

It is the designated port for its segment

It is a backup path to the root bridge

An enterprise network uses RSTP. A switch has two uplinks to the core: one is the root port, and the other is an alternate port. The root port fails. What happens to the alternate port?

It remains in discarding state until the max age timer expires

It immediately becomes the root port and transitions to forwarding

It becomes a designated port and transitions to forwarding

It becomes a backup port and remains in discarding state

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

Domain 2Objective 2

Port Roles and States JN0-352 Practice Questions (Page 2)

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 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

5concepts

Questions 6–10

6application · easy
A switch in a classic STP network has just been powered on. Its ports are transitioning from blocking to forwarding. Which timer determines how long a port stays in the listening state?
Select an answer first
7application · medium
A network administrator is troubleshooting a slow convergence issue in a classic STP network. They notice that a port takes 30 seconds to transition from blocking to forwarding. What is the most likely cause?
Select an answer first
8application · medium
In a classic STP network, a switch has a port that is in blocking state and is not the root port. Which additional characteristic is true for this port?
Select an answer first
9expert · medium
An enterprise network uses RSTP. A switch has two uplinks to the core: one is the root port, and the other is an alternate port. The root port fails. What happens to the alternate port?
Select an answer first
10foundation · easy
Which STP port role is placed in the blocking state because it provides a redundant, but not the best, path to the root bridge?
Select an answer first

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Port Roles and States JN0-352 Practice Questions (Page 2)

Questions 6–10

A switch in a classic STP network has just been powered on. Its ports are transitioning from blocking to forwarding. Which timer determines how long a port stays in the listening state?

A network administrator is troubleshooting a slow convergence issue in a classic STP network. They notice that a port takes 30 seconds to transition from blocking to forwarding. What is the most likely cause?

In a classic STP network, a switch has a port that is in blocking state and is not the root port. Which additional characteristic is true for this port?

An enterprise network uses RSTP. A switch has two uplinks to the core: one is the root port, and the other is an alternate port. The root port fails. What happens to the alternate port?

Which STP port role is placed in the blocking state because it provides a redundant, but not the best, path to the root bridge?

Keep studying — Spanning Tree