单选题A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?()AVisually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address commandBHave end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address commandCUse the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to themDUse show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security

单选题
A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?()
A

Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address command

B

Have end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address command

C

Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them

D

Use show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security


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多选题You need to configure port security on switch R1.  Which two statements are true about this  technology? ()APort security can be configured for ports supporting VoIP.BWith port security configured, four MAC addresses are allowed by default.CThe network administrator must manually enter the MAC address for each device in order for  the switch to allow connectivity.DWithsecurity configured, only one MAC addresses is allowed by default.EPort security cannot be configured for ports supporting VoIP.

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单选题Why would a network administrator configure port security on a switch()。Ato prevent unauthorized Telnet access to a switch portBto limit the number of Layer 2 broadcasts on a particular switch portCto prevent unauthorized hosts from accessing the LANDto protect the IP and MAC address of the switch and associated portsEto block unauthorized access to the switch management interfaces over common TCP ports

多选题An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? ()AThe switch must be configured with an IP address, subnet mask, and default gateway.BThe switch must be connected to a router over a VLAN trunk.CThe switch must be reachable through a port connected to its management VLAN.DThe switch console port must be connected to the Ethernet LAN.EThe switch management VLAN must be created and have a membership of at least one switch

单选题Why would a network administrator configure port security on a switch?()ATo prevent unauthorized Telnet access to a switch port.BTo limit the number of Layer 2 broadcasts on a particular switch port.CTo prevent unauthorized hosts from accessing the LAN.DTo protect the IP and MAC address of the switch and associated ports.ETo block unauthorized access to the switch management interfaces over common TCP ports.