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Which two of the following values does STP take into consideration when it elects the root bridge? (Select two answer choices)A. The BPDU version numberB. The access layer bridge settingC. The Bridge IDD. The spanning-tree update numberE. The bridge prior

题目

Which two of the following values does STP take into consideration when it elects the root bridge? (Select two answer choices)

A. The BPDU version number

B. The access layer bridge setting

C. The Bridge ID

D. The spanning-tree update number

E. The bridge priority

F. The VLAN number

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相似问题和答案

第1题：

What are the switch and bridge port characteristics of a layer two spanning－tree network that is fully converged?()

A. All switch and bridge ports are in the forwarding state.

B. All switch and bridge ports are in the stand-by state.

C. All switch and bridge ports are assigned as either root or designated ports.

D. All switch and bridge ports are in either the forwarding or blocking state.

E. All switch and bridge are either blocking or looping.


参考答案：D

第2题：

Which two values are used by Spanning Tree Protocol to elect a root bridge?（）

  • A、amount of RAM
  • B、bridge priority
  • C、IOS version
  • D、IP address
  • E、MAC address
  • F、speed of the links

正确答案:B,E

第3题：

You want to influence the root bridge selection within the Ezonexam LAN. Which two values are used by spanning tree protocol to elect a root bridge? (Choose two.)

A. Amount of RAM

B. Speed of the links

C. IOS Version

D. MAC Address

E. Bridge Priority

F. IP Address

G. Router ID


正确答案：DE
D,E

第4题：

The classic Spanning Tree Protocol （802.1D  1998） uses which sequence of variables to determine the best received BPDU？（）

  • A、lowest root bridge id；lowest sender bridge id；lowest port id；lowest root path cost
  • B、lowest root path cost；lowest root bridge id；lowest sender bridge id；lowest sender port id
  • C、lowest root bridge id；lowest sender bridge id；lowest root path cost；lowest sender port id
  • D、lowest root bridge id；lowest root path cost；lowest sender bridge id；lowest sender port id

正确答案:D

第5题：

Which statement is true about TCN propagation？（）

  • A、The originator of the TCN immediately floods this information through the network.
  • B、The TCN propagation is a two step process.
  • C、A TCN is generated and sent to the root bridge.
  • D、The root bridge must flood this information throughout the network.

正确答案:C

第6题：

Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree  Protocol IEEE 802.1D？ （）

  • A、Designated Root Cost
  • B、bridge ID priority
  • C、max age
  • D、bridge ID MAC address
  • E、Designated Root Priority
  • F、forward delay

正确答案:B,D

第7题：

Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree ProtocolIEEE 802.1 D？（）

  • A、Designated Root Cost
  • B、bridge ID priority
  • C、max age
  • D、bridge ID MAC address
  • E、Designated Root Priority
  • F、forward delay

正确答案:B,D

第8题：

Which statement describes a spanning－tree network that has converged?()

A. All switch and bridge ports are in the forwarding state.

B. All switch and bridge ports are assigned as either root or designated ports.

C. All switch and bridge ports are in either the forwarding or blocking state.

D. All switch and bridge ports are either blocking or looping.


参考答案：C

第9题：

Which two statements are true when the extended system ID feature is enabled？ （）

  • A、The BID is made up of the bridge priority value（two bytes） and bridge MAC address （six bytes）.
  • B、The BID is made up of the bridge priority （four bits）， the system ID （12 bits）， and a bridge MAC address （48 bits）.
  • C、The BID is made up of the system ID （six bytes） and bridge priority value （two bytes）.
  • D、The system ID value is the VLAN ID （VID）.
  • E、The system ID value is a unique MAC address allocated from a pool of MAC addresses assigned to the switch or module.
  • F、The system ID value is a hex number used to measure the preference of a bridge in the spanning-tree algorithm.

正确答案:B,D

第10题：

Which of the following settings will reduce packet overhead and overall latency in a standalonepoint-to-point bridge deployment？（）

  • A、enable concatenation on the non-root bridge only
  • B、enable concatenation on the root bridge only
  • C、enable concatenation on both the root bridge and non-root bridge
  • D、enable concatenation on the root bridge and set it as desirable on the non-root bridge
  • E、set concatenation as desirable on the root bridge and enable it on the non-root bridge

正确答案:C

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