Which event triggers a port to transition from the blocking state to the listening state in classic STP?

The port is elected as a root port or designated port

The forward delay timer expires

The port receives a superior BPDU

During a network upgrade, a switch is powered on and its ports begin the STP convergence process. A port transitions through listening and learning states before reaching forwarding. What is the primary purpose of the listening state?

To listen for BPDUs and determine the best path to the root bridge

To learn MAC addresses and build the forwarding database

To send BPDUs to neighboring switches to negotiate port roles

To flush the MAC address table and clear stale entries

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

Domain 2Objective 2

Port Roles and States JN0-352 Practice Questions (Page 1)

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 1–5

1foundation · easy
Which event triggers a port to transition from the blocking state to the listening state in classic STP?
Select an answer first
2application · medium
During a network upgrade, a switch is powered on and its ports begin the STP convergence process. A port transitions through listening and learning states before reaching forwarding. What is the primary purpose of the listening state?
Select an answer first
3foundation · easy
In classic Spanning Tree Protocol (STP), which port role is responsible for providing the best path to the root bridge from a non-root switch?
Select an answer first
4application · medium
In an RSTP network, a switch port is in the learning state. Which port role can this port have?
Select an answer first
5foundation · easy
Which STP port state is the initial state for a port that is enabled but not yet participating in the spanning tree algorithm?
Select an answer first

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Port Roles and States JN0-352 Practice Questions (Page 1)

Questions 1–5

Which event triggers a port to transition from the blocking state to the listening state in classic STP?

During a network upgrade, a switch is powered on and its ports begin the STP convergence process. A port transitions through listening and learning states before reaching forwarding. What is the primary purpose of the listening state?

In classic Spanning Tree Protocol (STP), which port role is responsible for providing the best path to the root bridge from a non-root switch?

In an RSTP network, a switch port is in the learning state. Which port role can this port have?

Which STP port state is the initial state for a port that is enabled but not yet participating in the spanning tree algorithm?

Keep studying — Spanning Tree