What is true about access control on bridged and routed VLAN traffic？ （）
A. Router ACLs can be applied to the input and output directions of a VLAN interface.
B. Bridged ACLs can be applied to the input and output directions of a VLAN interface.
C. Only router ACLs can be applied to a VLAN interface.
D. VLAN maps and router ACLs can be used in combination.
E. VLAN maps can be applied to a VLAN interface
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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？（）
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
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.
最新試題
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
Which statement is correct about the use of the virtual interface on a WLC ？（）
What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
Which two statements are true when the extended system ID feature is enabled？ （）
Refer to the exhibit and the partial configuration of switch SW_A and SW_B. STP is configured on all switches in the network. SW_B receives this error message on the console port：00：06：34： %CDP-4-DUPLEX_MISMATCH： duplex mismatch discovered on FastEthernet0/5 （not half duplex）， with SW_A FastEthernet0/4 （half duplex） ， with TBA05071417（Cat6K-B） 0/4 （half duplex）. What would be the possible outcome of the problem？（）
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？（）
Refer to the exhibit. The command switchport mode access is issued on interface FastEthernet0/13 on switch CAT1. What will be the result？（）
If G1/0/1 on DS1 is shutdown， what will be the current priority value of the Vlan105’s group on DS1 ？（）
During routine maintenance， G1/0/1 on DS1 was shutdown. All other interface were up. DS2 became the active HSRP device for Vlan101 as desired. However， after G1/0/1 on DS1 was reactivated. DS1 did not become the active HSRP device as desired. What need to be done to make the group for Vlan101 function properly ？ （）