單項選擇題

On a Company switch named R1 you configure the following： iparp inspection vlan 10-12， 15
What is the purpose of this global configuration command made on R1？（）

A. Discards ARP packets with invalid IP-to-MAC address bindings on trusted ports
B. Validates outgoing ARP requests for interfaces configured on VLAN 10， 11， 12， or 15
C. Intercepts， logs， and discards ARP packets with invalid IP-to-MAC address bindings
D. Intercepts all ARP requests and responses on trusted ports
E. None of the other alternatives apply

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多項選擇題

As the network technician at Company， you need to configure DHCP snooping on a new switch.
Which three steps are required？（）

A. Configure the switch to insert and remove DHCP relay information （option-82 field） in forwarded DHCP request messages.
B. Configure DHCP snooping globally.
C. Configure the switch as a DHCP server.
D. Configure DHCP snooping on an interface.
E. Configure all interfaces as DHCP snooping trusted interfaces.
F. Configure DHCP snooping on a VLAN or range of VLANs.

多項選擇題

In the use of 802.1X access control，
which three protocols are allowed through the switch port before authentication takes place？（）

A. STP
B. CDP
C. EAP MD5
D. TACACS+
E. EAP-over-LAN
F. protocols not filtered by an ACL

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On a Company switch named R1 you configure the following： iparp inspection vlan 10-12， 15 What is the purpose of this global configuration command made on R1？（）

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As the network technician at Company， you need to configure DHCP snooping on a new switch. Which three steps are required？ （）

In the use of 802.1X access control， which three protocols are allowed through the switch port before authentication takes place？ （）

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On a Company switch named R1 you configure the following： iparp inspection vlan 10-12， 15
What is the purpose of this global configuration command made on R1？（）

As the network technician at Company， you need to configure DHCP snooping on a new switch.
Which three steps are required？（）

In the use of 802.1X access control，
which three protocols are allowed through the switch port before authentication takes place？（）