What is the primary purpose of the max age timer in Spanning-Tree Protocol?

To set the time a port spends in the listening state

To determine how long a BPDU is considered valid before it expires

To control the interval between BPDU transmissions

To specify the time a port waits before transitioning to the forwarding state

A network administrator is configuring root protection on a Junos switch to ensure that a specific port never becomes a root port. The port is connected to a downstream switch that has a lower bridge ID than the current root. What will happen when the downstream switch sends a superior BPDU?

The port will be placed in a root-inconsistent state and will not forward traffic.

The port will send a topology change notification to the root bridge.

The port will ignore the superior BPDU and continue forwarding traffic.

The port will accept the superior BPDU and become a root port.

Which Junos OS operational command displays the spanning-tree interface state, including whether a port is in a loop-inconsistent or root-inconsistent state?

show configuration protocols rstp

What is the primary purpose of root protection in Spanning-Tree Protocol?

To speed up convergence by reducing the forward delay timer

To prevent a port from forwarding traffic when BPDUs are not received

To prevent a designated port from becoming a root port

An interface on a Junos switch is in a 'loop-inconsistent' state. What is the most likely cause?

The interface stopped receiving BPDUs while loop protection was enabled

The interface received a superior BPDU while root protection was enabled

The interface is configured as an edge port and received a BPDU

The interface is experiencing a hardware failure

Juniper NetworksCertified Specialist, Service Provider Routing and Switching (JNCIS-SP)

Domain 6Objective 7

BPDU, Loop and Root Protection JN0-364 Practice Questions (Page 1)

Part of the Spanning-Tree Protocols domain, which makes up ~8% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~3–5 in this domain), expect 1–1 from this objective — we provide 13 practice questions to prepare you well beyond it. (estimate)

13questions here

3free pages

6concepts

Questions 1–5

1foundation · easy
What is the primary purpose of the max age timer in Spanning-Tree Protocol?
Select an answer first
2application · medium
A network administrator is configuring root protection on a Junos switch to ensure that a specific port never becomes a root port. The port is connected to a downstream switch that has a lower bridge ID than the current root. What will happen when the downstream switch sends a superior BPDU?
Select an answer first
3foundation · easy
Which Junos OS operational command displays the spanning-tree interface state, including whether a port is in a loop-inconsistent or root-inconsistent state?
Select an answer first
4foundation · easy
What is the primary purpose of root protection in Spanning-Tree Protocol?
Select an answer first
5foundation · easy
An interface on a Junos switch is in a 'loop-inconsistent' state. What is the most likely cause?
Select an answer first

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