單項(xiàng)選擇題

A campus infrastructure supports wireless clients via Cisco Aironet AG Series 1230, 1240, and 1250 access points. With DNS and DHCP configured, the 1230 and 1240 access points appear to boot and operate normally; however, the 1250 access points do not seem to operate correctly. 
What is the most likely issue causing this problem?()

A.PoE
B.DHCP with option 150
C.DHCP with option 43
D.DNS
E.switch port does not support gigabit speeds


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1.單項(xiàng)選擇題

You work as a network engineer for . You study the exhibit carefully. 
What happens when the switch 2 is connected to the rest of the network in the VTP domain Lab_Network?()
Exhibit:

A.The recently introduced switch 2 removes all configured VLANs throughout the VTP domain. 
B.The recently introduced switch 2 creates a STP loop in the VTP domain.
C.The recently introduced switch 2 switches over to VTP transparent mode in order to be included into the VTP domain.
D.A trunk should be configured between the two switches in order to integrate 2 into the VTP domain.
E.The recently introduced switch 2 adds one more VLAN to the VLAN database in the VTP domain.

4.多項(xiàng)選擇題

You work as a network engineer for . You study the switch exhibit carefully. 
Which two statements are true? ()
Exhibit:

A.The trust boundary is not on this switch.
B.It is displaying the AutoQos configuration that was initially applied.
C.Interface Fa0/3 trusts allCoS values.
D.The switch does not trust theCoS values of a Cisco IP phone attached to port Fa0/3.
E.The show auto qos command shows the user-defined QoS settings.
F.The show auto qos command does not display user configuration changes currently in effect.

5.多項(xiàng)選擇題Which three statements are true about DAI?()

A.DAI intercept all ARP packets on untrusted ports
B.DAI determines the validity of an ARP packet based on the valid MAC address-to-IP address bindings stored in the DHCP Snooping database.
C.DAI is used to prevent against a DHCP Snooping attack.
D.DAI forwards all ARP packets received on a trusted interface without any checks.
E.DAI forwards all ARP packets on untrusted ports.
F.DAI determines the validity of an ARP packet based on the valid MAC address-to-IP address bindings stored in the CAM table.

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