单项选择题

Refer to the show spanning-tree mst configuration output shown in the exhibit.
 What should be  changed in the configuration of the switch SW_2 in order for it to participate in the same MST  region? ()

A. Switch SW_2 must be configured with an instance number of 2.
B. Switch SW_2 must be configured with a different VLAN range.
C. Switch SW_2 must be configured with the revision number of 1.
D. Switch SW_2 must be configured with a different MST name.


您可能感兴趣的试卷

你可能感兴趣的试题

1.单项选择题

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.

2.单项选择题

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.

3.单项选择题By default, all VLANs will belong to which MST instance when using Multiple STP? ()

A. MST00
B. MST01
C. the last MST instance configured
D. none

4.多项选择题Which three items are configured in MST configuration submode? ()

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


6.单项选择题

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

7.单项选择题

pany uses MSTP within their switched LAN. 
What is the main purpose of Multiple Instance  Spanning Tree Protocol (MSTP)?()

A. To enhance Spanning Tree troubleshooting on multilayer switches
B. To reduce the total number of spanning tree instances necessary for a particular topology 
C. To provide faster convergence when topology changes occur in a switched network
D. To provide protection for STP when a link is unidirectional and BPDUs are being sent but not  received
E. None of the other alternatives apply

8.多项选择题

The Company network utilizes the Multiple-instance Spanning Tree protocol in its switched LAN. 
 Which three statements about the MST protocol (IEEE 802.1S) are true? ()

A. To verify the MST configuration, the show pending command can be used in MST configuration  mode.
B. When RSTP and MSTP are configured; UplinkFast and BackboneFast must also be enabled.
C. All switches in the same MST region must have the same VLAN-to-instance mapping, but  different configuration revision numbers.
D. All switches in an MST region, except distribution layer switches, should have their priority  lowered from the default value 32768.
E. An MST region is a group of MST switches that appear as a single virtual bridge to adjacent  CST and MST regions.
F. Enabling MST with the "spanning-tree modemst" global configuration command also enables  RSTP.

9.单项选择题

On switch R1 you issue the "udld enable" global command. 
What does this command accomplish? ()

A. Enables all fiber-optic LAN ports for Unidirectional LINK Detection (UDLD)
B. Enables all copper media LAN ports Unidirectional Link Detection (UDLD)
C. Overrides the default UDLS setting for all ports
D. Globally enables all ports on the device for Unidirectional Link Detection (UDLS)
E. None of the other alternatives apply

10.单项选择题

Switch R1 has been configured with the root guard feature. 
What statement is true if the spanning  tree enhancement Root Guard is enabled? ()

A. If BPDUs are not received on a non-designated port, the port is moved into the STP loop- inconsistent blocked state
B. IF BPDUs are received on a PortFast enabled port, the port is disabled.
C. If superior BPDUs are received on a designated port, the interface is placed into the root- inconsistent blocked state.
D. If inferior BPDUs are received on a root port, all blocked ports become alternate paths to the  root bride.

最新试题

Refer to the exhibit. For what purpose is the command show ip cef used?()

题型:单项选择题

What two things will occur when an edge port receives a BPDU?()

题型:多项选择题

Refer to the exhibit. Initially, LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA. Which two statements are true about the possible result of attaching the second link?()

题型:多项选择题

Examine the diagram. A network administrator has recently installed the above switched network using 3550s and would like to control the selection of the root bridge.Which switch should theadministrator configure as the root bridge and which configuration command must theadministrator enter to accomplish this?()

题型:单项选择题

DS2 has not become the active device for Vlan103’s HSRP group even though all interfaces are active. As related to Vlan103’s HSRP group. What can be done to make the group function properly ? ()

题型:单项选择题

Refer to the exhibit. Based on the output of the show spanning-tree command, which statement is true? ()

题型:单项选择题

During routine maintenance, G1/0/1 on DS1 was shutdown. All other interface were up. DS2 became the active HSRP device for Vlan101 as desired. However, after G1/0/1 on DS1 was reactivated. DS1 did not become the active HSRP device as desired. What need to be done to make the group for Vlan101 function properly ? ()

题型:单项选择题

Refer to the exhibit. The command switchport mode access is issued on interface FastEthernet0/13 on switch CAT1. What will be the result?()

题型:单项选择题

What must be the same to make multiple switches part of the same Multiple Spanning Tree (MST)?()

题型:单项选择题

Which three statements about STP timers are true?()

题型:多项选择题