A.show spanning-tree
B.show root all
C.show spann-ing-tree port root VLAN
D.show spanning-tree summary
第1题:
A.spanning-tree vlan 30 priority 0
B.spanning-tree vlan 30 priority 16384
C.spanning-tree vlan 30 root guarantee
D.spanning-tree vlan 30 root primary
第2题:
A.比较所有的端口上Designated Root,Designated Cost和端口Cost之和,Designated Bridge和Designated Port的值,从中选出最优参数的端口,并且此端口上记录的Designated Root要比交换机自身的Bridge Identifier更优先,此端口即为根端口
B.选择出根端口之后,更新交换机全局参数Designated Root为根端口记录的Designated Root;更新交换机全局参数Root Path Cost为根端口记录的Designated Cost与根端口的Port Cost之和
C.如果任何端口记录的Designated Root参数都不比交换机自身的Bridge Identifier更优先,则交换机全局参数Designated Root设置为交换机自身的Bridge Identifier;交换机全局参数Root Path Cost设置为0
D.根交换机,根端口,根路径开销计算完成并更新了交换机全局参数之后,开始启动指定端口选择过程
E.以上说法都不正确
第3题:
●下面Linux命令中, (62)可用于关闭系统。
(62)
A. [root@root]#init 0
B. [root@root]# init 1
C.[root@root]# init 2
D. [root@root]#init 3
第4题:
能够将分布交换机配置为生成树的主根交换机的命令是()。
第5题:
What is the STP root guard feature designed to prevent?()
第6题:
Which configuration is used to enable root guard?()
第7题:
以下关于生成树协议的端口角色的描述不正确的是?()
第8题:
Which three options are considered in the spanning-tree decision process?()
第9题:
Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning-Tree plus?()
第10题:
lowest root bridge ID
lowest path cost to root bridge
lowest sender bridge ID
highest port ID
highest root bridge ID
highest path cost to root bridge
第11题:
lowest port MAC address
port priority number and MAC address
VTP revision number
highest port priority number
path cost
第12题:
a root port being transitioned to the blocking state
a port being assigned as a root port
a port being assigned as an alternate port
a root port being transitioned to the forwarding state
第13题:
A.这台交换机是根网桥
B.这台交换机不是根网桥
C.根网桥与这台交换机之间有4台交换机
D.这台交换机运行的是802.1w
E.这台交换机运行的是STP PVST+
第14题:
A.Root Identifier
B.Root Path Cost
C.Bridge Identifier
D.Port Identifier
第15题:
图5-5是在某交换机配置过程中,在配置模式下执行(30)命令的系统输出信息。
A.show spanning-tree
B.show spanning-tree vlan 1
C.show spanning-tree detail
D.show spanning-tree summary
第16题:
What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?()
第17题:
What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?()
第18题:
命令show spanning-tree vlan 10 detail可以查看()信息?
第19题:
Which of the following characteristics describe the Root Guard feature?(Choose all that apply.)()
第20题:
What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?()
第21题:
spanning-tree vlan vlan-id primary
spanning-tree vlan vlan-id root primary
spanning-tree root primary
spanning-tree bridge root
第22题:
lowest port MAC address
port priority number and MAC address.
VTP revision number
highest port priority number.
path cost
第23题:
path cost
lowest port MAC address
VTP revision number
highest port priority number
port priority number and MAC address