YourcompanyhasanActiveDirectoryforest.ThecorporatenetworkusesDHCPtoconfigureclientcomputer

Your company has an active directory forest. The corporate network uses DHCP to configure client computer IP addresses. The DHCP server has a DHCP client reservation for a portable computer named WKS1. You install a second DHCP server on the network. You need to ensure that WKS1 receives the DHCP reservation from the DHCP service. What should you do?（）

A.Run the ipconfig /renew command on WKS1.

B.Run the netsh add helper command on WKS1.

C.Add the DHCP reservation for WKS1 to the second DHCP server.

D.Add the DHCP servers to the RAS and IAS servers group in the active directory domain.

Your company uses DHCP to lease IPv4 addresses to computers at the main office. A WAN link connects the main office to a branch office. All computers in the branch office are configured with static IP addresses. The branch office does not use DHCP and uses a different subnet.You need to ensure that the portable computers can connect to network resources at the main office and the branch office.How should you configure each portable computer？（）

A. Use a static IPv4 address in the range used at the branch office.

B. Use an alternate configuration that contains a static IP address in the range used at the main office.

C. Use the address that was assigned by the DHCP server as a static IP address.

D. Use an alternate configuration that contains a static IP address in the range used at the branch office.

A.EnsurethatallwirelessnetworkingequipmentfullysupportstheIEE802.11a，IEEE802.11b，andIEEE802.11gwirelessnetworkingprotocols

B.Assignarandomservicesetidentifier（SSID）toeachwirelessaccesspoint.DisablebroadcastingofSSIDsonallwirelessaccesspoints

C.CreateafirewalltoblocktraffictoanyIPaddressthatdidnotoriginatefromthecompany’sDHCPservers.Ensurethatallwirelessaccesspointsconnectbehindthisnewfirewall

D.ConfigureaservertouseInternetAuthenticationService（IAS）.ConfigurethewirelessnetworkingequipmenttousetheIEEE802.1xprotocolandtheIASserver

A.J0errorsdetectedinainaspecifiedinterval

B.errorsdetectedinagivenErroredSeconds（ES）

C.errorsdetectedinagivenSeverelyErroredSeconds（SES）

D.errorstheencryptionalgorithmdetectsinaspecifiedinterval

E.BitInterleavedParity（BIP）errorsdetectedinaspecifiedinterval

YouworkasanetworkadministratoratABC.com.TheABC.comnetworkconsistsofasingledomainnamedABC.com.AllserversontheABC.comnetworkhaveWindowsServer2012R2installed.ThenetworkasaservernamedABC_SR05thatprovidesDHCPservices.YouneedtocreateanewIPv4subnetonthenetwork.Thesubnetmustsupportamaximumof5，000hostsandmusthaveafewunusedaddressesaspossible.HowwouldyouconfigureDHCPtosupportthissubnet？（）

A.Youshoulduseasubnetmaskof255.255.255.0.

B.Youshoulduseasubnetmaskof255.255.248.0

C.Youshoulduseasubnetmaskof255.255.240.0.

D.Youshoulduseasubnetmaskof255.255.224.0

E.Youshoulduseasubnetmaskof255.255.128.0

F.Youshoulduseasubnetmaskof255.255.0.0

YouworkasanetworkadministratoratABC.com.TheABC.comnetworkconsistsofasingledomainnamedABC.com.AllserversontheABC.comnetworkhaveWindowsServer2012R2installed.ThenetworkasaservernamedABC_SR05thatprovidesDHCPservices.YouneedtocreatetheDHCPscopestosupportasubnetthathas800hosts.YouwanttominimizethenumberofunusedIPaddressesoneachsubnet.HowwouldyouconfigureDHCPtosupportthesesubnets？（）

A.Youshouldassignthenetwork172.16.0.0/16.

B.Youshouldassignthenetwork172.16.0.0/17.

C.Youshouldassignthenetwork172.16.0.0/18.

D.Youshouldassignthenetwork172.16.0.0/19.

E.Youshouldassignthenetwork172.16.0.0/20.

F.Youshouldassignthenetwork172.16.0.0/22.

A.PreventsDoSfromlegimate，non-hostileendsystems

B.Preventsdisruptionof"specialservices"，suchasMobileIP

C.DefeatsDoSAttackswhichemployIPSourceAddressSpoofing

D.Restrictsdirectedbroadcastsattheingressrouter

E.AllowsDHCPorBOOTPpacketstoreachtherelayagentsasappropriate

传输的商标为（）

A、SBS

B、SDH

C、OptiX

D、Metro

传输的商标为（）

A、SBS

B、SDH

C、OptiX

D、Metro

B-ISDN是以（）为核心技术。

A.ATM

B.SDH

C.DDN

D.帧中继