What are two methods of mitigating MAC address flooding attacks？（）

A . The default route should have a next hop address of 64.100.0.3. B . Hosts on the LAN that is connected to FastEthernet 0/1 are using public IP addressing. C . The address of the subnet segment with the WWW server will support seven more servers. D . The addressing scheme allows users on the Internet to access the WWW server. E . Hosts on the LAN that is connected to FastEthernet 0/1 will not be able to access the Internet without address translation.

A . It sends data in clear text format. B . It is no longer supported on Cisco network devices. C . It is more secure than SSH D . It requires an enterprise license in order to be implemented. E . It requires that the destination device be configured to support Telnet connections.

A .  Change-based B .  Cancel-based C .  Time-based D .  Sequence number-based E .  Transaction number-based

A . classful routing protocol B . variable-length subnet masks C . broadcast addressing D . manual route summarization E . uses SPF algorithm to compute path

A .  float getVar（） {return x：} B .  public float getVar（） {return x； } C .  public double getVar（） {return x； } D .  protected float getVar（） {return x； } E .  public float getVar（float f） {return f；}

A . protection against denial of service （DoS） attacks at infrastructure routers and switches B .  protection against known worm attacks in routers and switches C . quality of service （QoS） control for packets that are sourced from the data plane of Cisco routers and switches D . quality of service control （QoS） for packets that are destined to the control plane of Cisco routers and switches E . quality of service （QoS） control for packets that are destined to the data plane of Cisco routers and switche

A . VTP messages are sent out all switch-switch connections. B . VTP L2 messages are communicated to neighbors using CDP. C . VTP manages addition， deletion， and renaming of VLANs 1 to 4094. D . VTP pruning restricts flooded traffic， increasing available bandwidth. E . VTP V2 can only be used in a domain consisting of V2 capable switches. F . VTP V2 performs consistency checks on all sources of VLAN information.

A .  It helps verify end-to-end path availability. B .  It provides traffic rerouting in case of disaster. C .  HSRP， GLBP， and VRRP can be clients of GSS. D .  BGP must be the routing protocol between the distributed data centers. E .  DNS responsiveness is improved by providing centralized domain management.

A . It can take on HSRP, VRRP, and GLBP as clients. B . It provides automatic inbound route optimization. C . Path selection may be based on delay, loss, or jitter. D . The border router makes decisions about which outbound path to use. E . Automatic load distribution is provided for multiple connections.

A .  If the hashCode values are different， the objects might be equal. B .  If the hashCode values are the same， the object must be equal. C .  If the hashCode values are the same， the objects might be equal. D .  If the hashCode values are different， the objects must be unequal.

A . It helps verify end-to-end path availability. B . It provides traffic rerouting in case of disaster. C . HSRP, GLBP, and VRRP can be clients of GSS. D . BGP must be the routing protocol between the distributed data centers. E . DNS responsiveness is improved by providing centralized domain management.

A .  It can take on HSRP， VRRP， and GLBP as clients. B .  It provides automatic inbound route optimization. C .  Path selection may be based on delay， loss， or jitter. D .  The border router makes decisions about which outbound path to use. E .  Automatic load distribution is provided for multiple connections.

A . increased administration B . improved availability C . reduced backup D . increased security E . greater storage demand

A .  The Administrator is unable to successfully export DISPLAY to a  remote server. B .  IBM Tivoli Workload Scheduler is installed on a server for which  there is no console access. C .  DNS is not working properly and the server cannot be accessed  remotely to run the uninstallation script. D .  TCP on the server on which IBM Tivoli Workload Scheduler is  installed is configured for half-duplex rather than full-duplex. E .  The remote IBM Tivoli Workload Scheduler server is multi-homed， thus  the return connection to IBM Tivoli Workload Scheduler cannot be  established thereby requiring the use of the silent  uninstaller.

A . Itsendsdataincleartextformat. B . ItisnolongersupportedonCisconetworkdevices. C . ItismoresecurethanSSH D . Itrequiresanenterpriselicenseinordertobeimplemented. E . ItrequiresthatthedestinationdevicebeconfiguredtosupportTelnetconnections.

A . NAT protects network security because private networks are not advertised. B . NAT accelerates the routing process because no modifications are made on the packets. C . Dynamic NAT facilitates connections from the outside of the network. D . NAT facilitates end-to-end communication when IPsec is enable. E . NAT eliminates the need to re-address all host that require extemal access. F . NAT conserves addresses through host MAC-level multiplexing.

A . Cisco AutoQoS can be used repeatedly to apply a single QoS policy to multiple interfaces. B . Cisco AutoQoS includes an optional web-based GUI for automating the configuration of QoS services. C . Cisco AutoQoS provides capabilities to automate VoIP deployments. D . The auto qos global configuration command is used to configure Cisco AutoQoS. E . The Modular QoS CLI （MQC） is the best way to fine tune QoS configurations. F . The SDM QoS wizard is the fastest way to implement QoS.

A . classful routing protocol B . variable-length subnet masks C . broadcast addressing D . manual route summarization E . uses SPF algorithm to compute path

A．A.Constant Stress B．B.Temporary Loading C．C.Repetitious Stress D．D.Reversal Stress