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.
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An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time.
Which procedure would best defend against this type of attack？ （）
A. Configure only trusted interfaces with root guard.
B. Implement private VLANs （PVLANs） to carry only user traffic.
C. Implement private VLANs （PVLANs） to carry only DHCP traffic.
D. Configure only untrusted interfaces with root guard.
E. Configure DHCP spoofing on all ports that connect untrusted clients.
F. Configure DHCP snooping only on ports that connect trusted DHCP servers.
G. None of the other alternatives apply
The Company is concerned about Layer 2 security threats.
Which statement is true about these threats？ （）
A. MAC spoofing attacks allow an attacking device to receive frames intended for a different network host.
B. Port scanners are the most effective defense against dynamic ARP inspection.
C. MAC spoofing, in conjunction with ARP snooping, is the most effective counter-measure against reconnaissance attacks that use dynamic ARP inspection (DAI) to determine vulnerable attack points.
D. Dynamic ARP inspection in conjunction with ARP spoofing can be used to counter DHCP snooping attacks.
E. DHCP snooping sends unauthorized replies to DHCP queries.
F. ARP spoofing can be used to redirect traffic to counter dynamic ARP inspection.
G. None of the other alternatives apply.
Refer to the exhibit. Port security has been configured on the switch port Fa0/5.
What would happen if another device is connected to the port after the maximum number of devices has been reached， even if one or more of the original MAC addresses are inactive？（）
A. The port will permit the new MAC address because one or more of the original MAC addresses are inactive.
B. The port will permit the new MAC address because one or more of the original MAC addresses will age out.
C. Because the new MAC address is not configured on the port， the port will not permit the new MAC address.
D. Although one or more of the original MAC addresses are inactive， the port will not permit the new MAC address.
Refer to the exhibit.
What is the problem with this configuration？（）
A. Spanning tree PortFast cannot be configured on a port where a voice VLAN is configured.
B. Sticky secure MAC addresses cannot be used on a port when a voice VLAN is configured.
C. Spanning tree PortFast cannot be configured on a port when a sticky secure MAC address is used.
D. The switch port must be configured as a trunk.
You need to configure port security on switch R1.
Which two statements are true about this technology？ （）
A. Port security can be configured for ports supporting VoIP.
B. With port security configured， four MAC addresses are allowed by default.
C. The network administrator must manually enter the MAC address for each device in order for the switch to allow connectivity.
D. Withsecurity configured， only one MAC addresses is allowed by default.
E. Port security cannot be configured for ports supporting VoIP.
最新試題
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
Refer to the exhibit. LACP has been configured on Switch1 as shown. Which is the correct command set to configure LACP on Switch2？（）
What must be the same to make multiple switches part of the same Multiple Spanning Tree （MST）？（）
Which three statements about STP timers are true？（）
Which two statements about the various implementations of STP are true？（）
Which option correctly identifies the Cisco IOS switching methods in descending order from the fastest method to the slowest method？（）
Refer to the exhibit. What command was issued on the Layer 3 switch Sw1 between Exhibit #1 and Exhibit #2？（）
Refer to the exhibit. STP has been implemented in the network. Switch SW_A is the root switch for the default VLAN. To reduce the broadcast domain， the network administrator decides to split users on the network into VLAN 2 and VLAN 10. The administrator issues the command spanning-tree vlan 2 root primary on switch SW_A. What will happen as a result of this change？（）
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？（）