A network administrator is examining the output of 'show spanning-tree' on a non-root switch. The output shows that port Gi0/1 is in the 'forwarding' state and has a role of 'root'. What does this indicate?

Gi0/1 is the port with the lowest cost path to the root bridge.

Gi0/1 is a backup port for the same segment.

Gi0/1 is a designated port for the segment.

Gi0/1 is an alternate port that can be used if the current root port fails.

A switch has two paths to the root bridge: one through a 10 Gbps link (cost 2) and one through a 1 Gbps link (cost 4). Both links are in the same VLAN. The switch's root port is currently the 10 Gbps link. The 10 Gbps link fails. What happens to the 1 Gbps link?

It remains in discarding state because it is an alternate port.

It becomes a designated port and starts forwarding immediately.

It will be error-disabled due to the link failure.

It becomes the new root port and transitions to forwarding after a brief learning period.

A switch has two ports connected to the root bridge. Port 1 has a path cost of 19, and Port 2 has a path cost of 4. Which port becomes the root port?

Port 1, because it has the higher cost

Port 2, because it has the lower cost

Neither port becomes root port because the switch is not the root

A network engineer is deploying two new access switches into an existing Rapid PVST+ domain. The two switches are connected to each other and to the existing distribution switch. The engineer wants one of the new switches to become the root bridge for VLAN 10, and the other new switch to become the root bridge for VLAN 20. The existing distribution switch has a default bridge priority. Which configuration meets the requirement?

Set the first switch as root for VLAN 10 using spanning-tree vlan 10 root secondary and the second switch as root for VLAN 20 using spanning-tree vlan 20 root secondary.

Use the spanning-tree vlan 10 root primary command on the first switch and spanning-tree vlan 20 root primary on the second switch.

Set bridge priority to 4096 on the first switch for VLAN 10 and to 8192 on the second switch for VLAN 20.

Configure the first switch with spanning-tree vlan 10 priority 0 and the second switch with spanning-tree vlan 20 priority 0.

CiscoCertified Network Associate (CCNA)

Domain 2Objective 5

2.5 Interpret Basic Operations of Rapid PVST+ Spanning Tree Protocol 200-301 Practice Questions (Page 3)

Part of the Network Access domain, which accounts for 20% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–2 from this objective — we provide 36 practice questions to prepare you well beyond it. (estimate)

36questions here

8free pages

9concepts

20%of the exam

Questions 11–15

11application · medium
A network administrator is examining the output of 'show spanning-tree' on a non-root switch. The output shows that port Gi0/1 is in the 'forwarding' state and has a role of 'root'. What does this indicate?
Select an answer first
12application · medium
A switch has two paths to the root bridge: one through a 10 Gbps link (cost 2) and one through a 1 Gbps link (cost 4). Both links are in the same VLAN. The switch's root port is currently the 10 Gbps link. The 10 Gbps link fails. What happens to the 1 Gbps link?
Select an answer first
13foundation · easy
A switch has two ports connected to the root bridge. Port 1 has a path cost of 19, and Port 2 has a path cost of 4. Which port becomes the root port?
Select an answer first
14application · medium
A network engineer wants to ensure that a specific access port can never become a root port, even if a superior BPDU is received on that port. Which feature should be enabled on that port?
Select an answer first
15application · medium
A network engineer is deploying two new access switches into an existing Rapid PVST+ domain. The two switches are connected to each other and to the existing distribution switch. The engineer wants one of the new switches to become the root bridge for VLAN 10, and the other new switch to become the root bridge for VLAN 20. The existing distribution switch has a default bridge priority. Which configuration meets the requirement?
Select an answer first

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2.5 Interpret Basic Operations of Rapid PVST+ Spanning Tree Protocol 200-301 Practice Questions (Page 3)

Questions 11–15

A network administrator is examining the output of 'show spanning-tree' on a non-root switch. The output shows that port Gi0/1 is in the 'forwarding' state and has a role of 'root'. What does this indicate?

A switch has two paths to the root bridge: one through a 10 Gbps link (cost 2) and one through a 1 Gbps link (cost 4). Both links are in the same VLAN. The switch's root port is currently the 10 Gbps link. The 10 Gbps link fails. What happens to the 1 Gbps link?

A switch has two ports connected to the root bridge. Port 1 has a path cost of 19, and Port 2 has a path cost of 4. Which port becomes the root port?

A network engineer wants to ensure that a specific access port can never become a root port, even if a superior BPDU is received on that port. Which feature should be enabled on that port?

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