單項(xiàng)選擇題

If you were to set up a VLAN trunk over a Fast Ethernet link on switch R1, 
which trunk mode  would you set the local port to on R1 if you wanted it to respond to requests from its link partner  (R2) and become a trunk? ()

A. Auto
B. Negotiate
C. Designate
D. No negotiate


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1.單項(xiàng)選擇題

You are the network administrator at Company and switch R1 is configured as shown below:  Interface gigethernet 0/1  Switchport mode trunk  
Switchport trunk encapsulation dot1q  Switchport trunk native vlan 5  
If untagged frames are arriving on interface gigethernet 0/1 of R1, 
which of the following statement  are correct?()

A. Untagged frames are automatically assumed to be in VLAN 5.
B. Untagged frames are defaulted to VLAN 1 traffic.
C. Untagged frames are dropped because all packets are tagged when dot1q trunked.
D. Untagged frames are determined on the other switch
E. Untagged frames are not supported on 802.1Q trunks.

2.多項(xiàng)選擇題

If you were to configure an ISL Ethernet trunk between two Cisco switches, named R1 and R2,  
what would you have to include at the end of the link for the trunk to operate correctly? ()

A. An identical VTP mode.
B. An identical speed/duplex.
C. An identical trunk negotiation parameter.
D. An identical trunk encapsulation parameter.

4.單項(xiàng)選擇題

You need to connect two Company core switches via an ISL trunk. 
Which statement is true  regarding the configuration of ISL trunks? ()

A. A Catalyst switch cannot have ISL and IEEE 802.1q trunks enabled.
B. All Catalyst switches support ISL trunking.
C. A Catalyst switch will report giants if one side is configured for ISL while the other side is not.
D. ISL trunking requires that native VLANs match.
E. None of the other alternatives apply

5.單項(xiàng)選擇題

A new Company switch was just configured using the "switchport trunk native vlan 7" command.  
What does this interface command accomplish?()

A. Causes the interface to apply ISL framing for traffic on VLAN 7
B. Configures the trunking interface to forward traffic from VLAN 7
C. Configures the interface to be a trunking port and causes traffic on VLAN 7 to be 802.1q tagged
D. Configures the trunking interface to send traffic from VLAN 7 untagged
E. None of the other alternatives apply

6.單項(xiàng)選擇題

You need to configure a new Company switch to support DTP. 
Which DTP switchport mode  parameter sets the switch port to actively send and respond to DTP negotiation frames? ()

A. Access
B. No negotiate
C. Trunk
D. Dynamic desirable
E. Dynamic auto
F. None of the other alternatives apply

8.單項(xiàng)選擇題

You need to configure a new Company switch for trunking. 
Which switch command enables a  trunking protocol that appends a four byte CRC to the packet?()

A. CompanySwitch(config-if)#switchport trunk encapsulation dot1q
B. CompanySwitch(config-if)#switchport trunk encapsulation itef
C. CompanySwitch(config-if)#switchport trunk encapsulation fddi
D. CompanySwitch(config-if)#switchport trunk encapsulation isl
E. None of the other alternatives apply

9.單項(xiàng)選擇題

Switch R1 has been configured with DTP using the desirable option. 
Which statement describes  Dynamic Trunking Protocol (DTP) desirable mode?()

A. The interface actively attempts to convert the link to a trunk link.
B. The interface is put into permanent trunking mode but prevented from generating DTP frames.  
C. The interface is put into permanent trunking mode and negotiates to convert the link into a trunk  link.
D. The interface is put into a passive mode, waiting to convert the link to a trunk link.  
E. None of the other alternatives apply


10.多項(xiàng)選擇題

The core Company switches are configured to use 802.1Q trunks. 
Which three statements are  correct with regard to the IEEE 802.1Q standard?()

A. The IEEE 802.1Q frame format adds a 4 byte field to a Ethernet frame
B. The packet is encapsulated with a 26 byte header and a 4 byte FCS
C. The protocol uses point-to-multipoint connectivity
D. The protocol uses point-to-point connectivity
E. The IEEE 802.1Q frame uses multicast destination of 0x01-00-0c-00-00
F. The IEEE 802.1Q frame retains the original MAC destination address

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