多项选择题Which two statements correctly describe characteristics of the PortFast feature? ()

A.STP will be disabled on the port.
B.PortFast can also be configured on trunk ports.
C.PortFast is required to enable port-based BPDU guard.
D.PortFast is used for both STP and RSTP host ports.
E.PortFast is used for STP-only host ports.


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1.多项选择题Which two RSTP port roles include the port as part of the active topology?()

A.root
B.designated
C.alternate
D.backup
E.forwarding
F.learning

2.多项选择题Which two DTP modes will permit trunking between directly connected switches?()

A.dynamic desirable (VTP domain A) to dynamic desirable (VTP domain A)
B.dynamic desirable (VTP domain A) to dynamic desirable (VTP domain B)
C.dynamic auto (VTP domain A) to dynamic auto (VTP domain A)
D.dynamic auto (VTP domain A) to dynamic auto (VTP domain B)
E.dynamic auto (VTP domain A) to nonegotiate (VTP domain A)
F.nonegotiate (VTP domain A) to nonegotiate (VTP domain B)

3.多项选择题Which two statements correctly describe VTP?()

A.Transparent mode always has a configuration revision number of 0.
B.Transparent mode cannot modify a VLAN database.
C.Client mode cannot forward received VTP advertisements.
D.Client mode synchronizes its VLAN database from VTP advertisements.
E.Server mode can synchronize across VTP domains.

4.多项选择题Which two of the following statements describe a routed switch port on a multilayer switch?()

A.Layer 2 switching and Layer 3 routing are mutually supported.
B.The port will not be associated with any VLAN.
C.The routed switch port supports VLAN subinterfaces.
D.The routed switch port is used when a switch has only one port per VLAN or subnet.
E.The routed switch port ensures that STP remains in the forwarding state.

5.多项选择题

Which two of the following steps are necessary to configure inter-VLAN routing between multilayer switches?()

A.Configure a dynamic routing protocol.
B.Configure SVI interfaces with IP addresses and subnet masks.
C.Configure switch ports with network addresses.
D.Configure switch ports with the autostate exclude command.
E.Document the MAC addresses of the switch ports.

6.单项选择题

A switch that is to be added to the production network has been preconfigured (trunks, VLANs, VTP, and STP) and was tested in your lab. After installing the switch into the network, the entire network went down. 
What might explain what happened? ()

A.The new switch happened to be running Cisco Catalyst operating system, while the other network switches were running Cisco IOS Software.
B.The configuration revision of the new switch was higher than the configuration revision of the production VTP domain.
C.The link costs on the new switch are set to a high value, causing all ports on the new switch to go into a forwarding mode and none into blocking mode, thereby causing a spanning-tree loop.
D.The ports connecting to the two switches have been configured incorrectly. One side has the command switchport mode access and the other switchport mode trunk.

7.单项选择题

You have just created a new VLAN on your network for inter-VLAN routing.  
What is one step that you should include in your VLAN-based implementation and verification plan?()

A.Verify that different native VLANs exist between two switches for security purposes.
B.Verify that the switch is configured to allow for trunking on the switch ports.
C.Verify that each switch port has the proper IP address space assigned to it for the new VLAN. 
D.Verify that the VLAN virtual interface has been correctly created and enabled.

8.单项选择题

You have just created a new VLAN on your network for inter-VLAN routing. 
What is one step that you should include in your VLAN-based implementation and verification plan?()

A.Verify that different native VLANs exist between two switches for security purposes.
B.Verify that the switch is configured to allow for trunking on the switch ports.
C.Verify that each switch port has the proper IP address space assigned to it for the new VLAN. 
D.Verify that the VLAN virtual interface has been correctly created and enabled.

9.单项选择题

You have just created a new VLAN on your network.
 What is one step that you should include in your VLAN-based implementation and verification plan? ()

A.Verify that trunked links are configured to allow the VLAN traffic.
B.Verify that the switch is configured to allow for trunking on the switch ports.
C.Verify that each switch port has the correct IP address space assigned to it for the new VLAN.
D.Verify that different native VLANs exist between two switches for security purposes.

10.单项选择题

You have just created a new VLAN on your network.
 What is one step that  you should include in your VLAN based implementation and verification plan? ()

A.Verify that different native VLANs exist between two switches for security purposes.
B.Verify that the VLAN was added on all switches with the use of the show vlan command. 
C.Verify that the switch is configured to allow for trunking on the switch ports.
D.Verify that each switch port has the correct IP address space assigned to it for the new VLAN.

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