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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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.
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
The DAI feature has been implemented in the Company switched LAN.
Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）
A. DAI can be performed on ingress ports only.
B. DAI can be performed on both ingress and egress ports.
C. DAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports.
D. DAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.
E. DAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.
F. DAI is supported on access and trunk ports only.
pany has implemented 802.1X authentication as a security enhancement.
Which statement is true about 802.1x port-based authentication？（）
A. TACACS+ is the only supported authentication server type.
B. If a host initiates the authentication process and does not receive a response， it assumes it is not authorized.
C. RADIUS is the only supported authentication server type.
D. Before transmitting data， an 802.1x host must determine the authorization state of the switch.
E. Hosts are required to havea 802.1x authentication client or utilize PPPoE.
F. None of the other alternatives apply.
Refer to the exhibit.
How will interface FastEthernnet0/1 respond when an 802.1x-enabled client connects to the port？ （）
A. The switch will uniquely authorize the client by using the client MAC address.
B. The switch will cause the port to remain in the unauthorized state， ignoring all attempts by the client to authenticate.
C. The switch port will disable 802.1x port-based authentication and cause the port to transition to the authorized state without any further authentication exchange.
D. The switch port will enable 802.1x port-based authentication and begin relaying authentication messages between the client and the authentication server.
最新試題
If G1/0/1 on DS1 is shutdown， what will be the current priority value of the Vlan105’s group on DS1 ？（）
Which three statements are true of the Link Aggregation Control Protocol （LACP）？（）
Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）
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？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）
Refer to the exhibit. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
What is the configured priority value of the Vlan105’s group on DS2 ？（）
Refer to the exhibit. Switch 15 is configured as the root switch for VLAN 10 but not for VLAN 20. If the STP configuration is correct， what will be true about Switch 15？（）
Refer to the exhibit. LACP has been configured on Switch1 as shown. Which is the correct command set to configure LACP on Switch2？（）
Which router redundancy protocol cannot be configured for interface tracking？（）