Which feature would prevent guest users from gaining network access by unplugging an IP phone and connecting a laptop computer？（）A、IPSec VPNB、SSL VPNC、port securityD、port security with statically configured MAC addressesE、private VLANs
Which feature would prevent guest users from gaining network access by unplugging an IP phone and connecting a laptop computer？（）
- A、IPSec VPN
- B、SSL VPN
- C、port security
- D、port security with statically configured MAC addresses
- E、private VLANs
相关考题：
The network administrator has configured port security on a Ezonexam switch. Why would a network administrator configure port security on this Ezonexam device?A．To prevent unauthorized hosts from getting access to the LANB．To limit the number of Layer 2 broadcasts on a particular switch portC．To prevent unauthorized Telnet or SSH access to a switch portD．To prevent the IP and MAC address of the switch and associated portsE．None of the above
A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?A. BPDUB. Port securityC. RSTPD. STPE. VTPF. Blocking mode
Why would a network administrator configure port security on a switch?() A. To prevent unauthorized Telnet access to a switch port.B. To limit the number of Layer 2 broadcasts on a particular switch port.C. To prevent unauthorized hosts from accessing the LAN.D. To protect the IP and MAC address of the switch and associated ports.E. To block unauthorized access to the switch management interfaces over common TCP ports.
What is valid reason for a switch to deny port access to new devices when port security is enabled?() A. The denied MAC addresses have already been learned or confgured on another secure interface in the same VLAN.B. The denied MAC address are statically configured on the port.C. The minimum MAC threshold has been reached.D. The absolute aging times for the denied MAC addresses have expired.
A network administrator needs to configure port security on a switch.which two statements are true? () A.The network administrator can apply port security to dynamic access portsB.The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.C.The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.D.The network administrator can apply port security to EtherChannels.E.When dynamic mac address learning is enabled on an interface,the switch can learn new addresses,up to the maximum defined.
Refer to the exhibit. A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands.Which two of these changes are necessary for SwitchA to meet the requirements? （）A.Port security needs to be globally enabled.B.Port security needs to be enabled on the interface.C.Port security needs to be configured to shut down the interface in the event of a violation.D.Port security needs to be configured to allow only one learned MAC address.E.Port security interface counters need to be cleared before using the show command.F.The port security configuration needs to be saved to NVRAM before it can become active.
Why would a network administrator configure port security on a switch()。 A.to prevent unauthorized Telnet access to a switch portB.to limit the number of Layer 2 broadcasts on a particular switch portC.to prevent unauthorized hosts from accessing the LAND.to protect the IP and MAC address of the switch and associated portsE.to block unauthorized access to the switch management interfaces over common TCP ports
Vlans have been enabled on an autonomous access point. in order for clients associating to vlans other than the native vlan to receive an ip address. Which of the following must be configured？（）A、access point ethernet port set to ssl trunkingB、switchport set to 802.1q trunkingC、switchport set to ssl trunkingD、access point ethernet port not set to 802.1q trunking
Why would a network administrator configure port security on a switch?（）A、to prevent unauthorized Telnet access to a switch portB、to limit the number of Layer 2 broadcasts on a particular switch portC、to prevent unauthorized hosts from accessing the LAND、to protect the IP and MAC address of the switch and associated portsE、to block unauthorized access to the switch management interfaces over common TCP ports
Which IOS security feature is configured by the ip inspect inspection-name {in | out} command？（）A、IPsec site-to-site VPNB、Cisco AutoSecureC、Cisco IOS FirewallD、IPS
Which feature would prevent guest users from gaining network access by unplugging an IP phone andconnecting a laptop computer？（）A、IPSec VPNB、SSL VPNC、port securityD、port security with statically configured MAC addressesE、private VLANs
Select the action that results from executing these commands. Switch（config-if）# switchport port-security. Switch（config-if）# switchport port-security mac-address sticky（）A、A dynamically learned MAC address is saved in the startup-configuration file.B、A dynamically learned MAC address is saved in the running-configuration file.C、A dynamically learned MAC address is saved in the VLAN database.D、Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.E、Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.
Which two statements are true about voice VLANs？（）A、Voice VLANs are only used when connecting an IP phone and a host to distinct switch portsB、Access ports that are configured with voice VLANs will always trust the CoS that is received from IP phonesC、Access ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phoneD、Voice VLANs are configured using the switchport voice vlan vlan-ID interface configuration commandE、Voice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the portF、Enabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS markings
A network administrator needs to configure port security on a switch.which two statements are true？（）A、The network administrator can apply port security to dynamic access portsB、The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.C、The sticky learning feature allows the addition of dynamically learned addresses to the runningconfiguration.D、The network administrator can apply port security to EtherChannels.E、When dynamic mac address learning is enabled on an interface，the switch can learn new addresses，up to the maximum defined.
A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?（）A、BPDUB、Port securityC、RSTPD、STPE、VTPF、Blocking mode
What features set is most frequently used to prevent hackers from flooding a port with MAC- addresses？（）A、BPDU GuardB、802.xC、Port SecurityD、Storm Control
What is valid reason for a switch to deny port access to new devices when port security is enabled?（）A、The denied MAC addresses have already been learned or confgured on another secure interface in the same VLAN.B、The denied MAC address are statically configured on the port.C、The minimum MAC threshold has been reached.D、The absolute aging times for the denied MAC addresses have expired.
In the event that two devices need access to a common server， but they cannot communicate witheach other， which security feature should be configured to mitigate attacks between thesedevices？（）A、private VLANsB、port securityC、BPDU guardD、dynamic ARP inspectionE、DHCP snooping
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.
Which of the following is required if ports from VLANs on two separate switches need to broadcastto each other?（）A、Port mirroringB、VPNC、TrunkingD、Port authentication
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Which two statements are true about voice VLANs？（）AVoice VLANs are only used when connecting an IP phone and a host to distinct switch portsBAccess ports that are configured with voice VLANs will always trust the CoS that is received from IP phonesCAccess ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phoneDVoice VLANs are configured using the switchport voice vlan vlan-ID interface configuration commandEVoice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the portFEnabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS markings
单选题Which feature would prevent guest users from gaining network access by unplugging an IP phone andconnecting a laptop computer？（）AIPSec VPNBSSL VPNCport securityDport security with statically configured MAC addressesEprivate VLANs
单选题Which feature would prevent guest users from gaining network access by unplugging an IP phone and connecting a laptop computer？（）AIPSec VPNBSSL VPNCport securityDport security with statically configured MAC addressesEprivate VLANs
多选题Refer to the exhibit. A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands.Which two of these changes are necessary for SwitchA to meet the requirements? （）APort security needs to be globally enabled.BPort security needs to be enabled on the interface.CPort security needs to be configured to shut down the interface in the event of a violation.DPort security needs to be configured to allow only one learned MAC address.EPort security interface counters need to be cleared before using the show command.FThe port security configuration needs to be saved to NVRAM before it can become active.
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.
单选题Vlans have been enabled on an autonomous access point. in order for clients associating to vlans other than the native vlan to receive an ip address. Which of the following must be configured？（）Aaccess point ethernet port set to ssl trunkingBswitchport set to 802.1q trunkingCswitchport set to ssl trunkingDaccess point ethernet port not set to 802.1q trunking