For security reasons, the network administrator needs to prevent pings into the corporate networks from hosts outside the internetwork. Which protocol should be blocked with access control lists()。 A.IPB.ICMPC.TCPD.UDP
For security reasons, the network administrator needs to prevent pings into the corporate networks from hosts outside the internetwork. Which protocol should be blocked with access control lists()。
A.IP
B.ICMP
C.TCP
D.UDP
相关考题：
As they access the corporate network, mobile and remote users inadvertently can infect the network with(72) and worms acquired from unprotected public networks.A．virusesB．diseaseC．germsD．sickness
our network contains multiple servers that run Windows Server 2008 R2. The servers have the Routing and Remote Access Services (RRAS) role service installed. The servers are configured to support Routing Information Protocol (RIP).You need to prevent the server from receiving routes for the 10.0.0.0 network.What should you do from the Routing and Remote Access console？（）A. From the RIP properties page, modify the General settings.B. From the RIP properties page, modify the Security settings.C. From the RIP interface properties page, modify the Security settings.D. From the RIP interface properties page, modify the Neighbors settings.
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
Your security policy requires that users authenticating to the Junos Pulse Access Control Service are connecting from a domain member endpoint on the internal corporate network.Which set of role access restrictions must you configure to enforce this security policy?（）A. Source IP and browserB. Source IP and certificateC. Certificate and Host CheckerD. Host Checker and source IP
You‘re the systems administrator at Testing, and you create the following access control lists.You then enter the command ip access-group 101 in to apply access control list 101 to router TK1s e0 interface.Which of the following Telnet sessions will be blocked as a result of your access lists?（）A. Telnet sessions from host A to host 5.1.1.10B. Telnet sessions from host A to host 5.1.3.10C. Telnet sessions from host B to host 5.1.2.10D. Telnet sessions from host B to host 5.1.3.8E. Telnet sessions from host C to host 5.1.3.10F. Telnet sessions from host F to host 5.1.1.10
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
What are two recommended ways of protecting network device configuration files from outside network security threats (Choose two.)()。 A.Allow unrestricted access to the console or VTY portsB.Use a firewall to restrict access from the outside to the network devicesC.Always use Telnet to access the device command line because its data is automatically encryptedD.Use SSH or another encrypted and authenticated transport to access device configurationsE.Prevent the loss of passwords by disabling password encryption
What are two recommended ways of protecting network device configuration files from outside network security threats (Choose two.)（）。A、Allow unrestricted access to the console or VTY portsB、Use a firewall to restrict access from the outside to the network devicesC、Always use Telnet to access the device command line because its data is automatically encryptedD、Use SSH or another encrypted and authenticated transport to access device configurationsE、Prevent the loss of passwords by disabling password encryption
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.
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
What are two reasons that a network administrator would use access lists (Choose two.)（）。A、to control vty access into a routerB、to control broadcast traffic through a routerC、to filter traffic as it passes through a routerD、to filter traffic that originates from the routerE、to replace passwords as a line of defense against security incursions
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.
An administrator needs a network that can support up to 800 hosts on the same subnet. Which of the following is the MINIMUM subnet mask that should be used？（）A、255.0.0.0B、255.255.0.0C、255.255.252.0D、255.255.255.0
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 are two recommended ways of protecting network device configuration files from outside network security threats? (Choose two.)（）A、Allow unrestricted access to the console or VTY ports.B、Use a firewall to restrict access from the outside to the network devices.C、Always use Telnet to access the device command line because its data is automatically encrypted.D、Use SSH or another encrypted and authenticated transport to access device configurations.E、Prevent the loss of passwords by disabling password encryption.
Which of the following should you enable to prevent a switch from forwarding packets with source addresses that are outside an administratively defined group？ （）A、 DAIB、 STPC、 PVLAND、 port security
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.
What are two reasons that a network administrator would use access lists? (Choose two.) （）。A、to control vty access into a router B、to control broadcast traffic through a router C、to filter traffic as it passes through a router D、to filter traffic that originates from the router E、to replace passwords as a line of defense against security incursions
Which of the following are advantages of using Dynamic Host Configuration Protocol?（）A、IP addresses can be managed from a central pointB、Computers can automatically get new addressing when moved to a different network segmentC、Media Access Control addresses can be changed automaticallyD、The network speed can automatically adjust based on the type of traffic being generatedE、The HOSTS file on the computer can be validated for proper entries
单选题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?（）ABPDUBPort securityCRSTPDSTPEVTPFBlocking mode
单选题Your security policy requires that users authenticating to the Junos Pulse Access Control Service are connecting from a domain member endpoint on the internal corporate network.Which set of role access restrictions must you configure to enforce this security policy?（）ASource IP and browserBSource IP and certificateCCertificate and Host CheckerDHost Checker and source IP
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 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
单选题For security reasons, the network administrator needs to prevent pings into the corporate networks from hosts outside the internetwork. Which protocol should be blocked with access control lists？（）AIPBICMPCTCPDUDP
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Which of the following should you enable to prevent a switch from forwarding packets with source addresses that are outside an administratively defined group？ （）A DAIB STPC PVLAND port security