While logged into a Company switch you issue the following command：
CompanySwitch（config-mst）# instance 10 vlan 11-12
What does this command accomplish？（）
A. It enables a PVST+ instance of 10 for vlan 11 and vlan 12
B. It enables vlan 11 and vlan 12 to be part of the MST region 10
C. It maps vlan 11 and vlan 12 to the MST instance of 10.
D. It creates an Internal Spanning Tree （IST） instance of 10 for vlan 11 and vlan 12
E. It create a Common Spanning Tree （CST） instance of 10 for vlan 11 and vlan 12
F. It starts two instances of MST， one instance for vlan 11 and another instance for vlan 12.
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Which MST configuration statement is correct？ （）
A. MST configurations can be propagated to other switches using VTP.
B. After MST is configured on a Switch， PVST+ operations will also be enabled by default.
C. MST configurations must be manually configured on each switch within the MST region.
D. MST configurations only need to be manually configured on the Root Bridge.
E. MST configurations are entered using the VLAN Database mode on Cisco Catalyst switches.
A. MST00
B. MST01
C. the last MST instance configured
D. none
A. Region name
B. Configuration revision number
C. VLAN instance map
D. IST STP BPDU hello timer
E. CST instance map
F. PVST+ instance map
Which of the following specification will allow you to： associate VLAN groups to STP instances so you can provide multiple forwarding paths for data traffic and enable load balancing？ （）
A. IEEE 802.1d （STP）
B. IEEE 802.1s （MST）
C. IEEE 802.1Q （CST）
D. IEEE 802.1w （RSTP）
Which of the following specifications is a companion to the IEEE 802.1w Rapid Spanning Tree Protocol （RSTP） algorithm， and warrants the use multiple spanning-trees？ （）
A. IEEE 802.1s （MST）
B. IEEE 802.1Q （CST）
C. Cisco PVST+
D. IEEE 802.1d （STP）
E. None of the other alternatives apply
最新試題
Refer to the exhibit. Switch 15 is configured as the root switch for VLAN 10 but not for VLAN 20. If the STP configuration is correct， what will be true about Switch 15？（）
Refer to the exhibit and the partial configuration of switch SW_A and SW_B. STP is configured on all switches in the network. SW_B receives this error message on the console port：00：06：34： %CDP-4-DUPLEX_MISMATCH： duplex mismatch discovered on FastEthernet0/5 （not half duplex）， with SW_A FastEthernet0/4 （half duplex） ， with TBA05071417（Cat6K-B） 0/4 （half duplex）. What would be the possible outcome of the problem？（）
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Refer to the exhibit. The command switchport mode access is issued on interface FastEthernet0/13 on switch CAT1. What will be the result？（）
Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result？（）
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Refer to the exhibit. For what purpose is the command show ip cef used？（）