How dose a DHCP server dynamically assign IP address to host?（）A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.B、Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made,and another address is then assigned.C、Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.D、Addresses are permanently assigned so that the host uses the same address at all times.
How dose a DHCP server dynamically assign IP address to host?（）
- A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
- B、Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made,and another address is then assigned.
- C、Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.
- D、Addresses are permanently assigned so that the host uses the same address at all times.
相关考题：
In a Bridged 1483 network,which set of configuration commands allows the router to forward requests from the PC to an external DHCP server at 1.1.1.1?() A.set dhcp relay set dhcp server 1.1.1.1B.set dhcp relay agent set dhcp relay 1.1.1.1C.enable dhcp relay enabled hcp server 1.1.1.1D.enable dhcp relay agent enable dhcp relay 1.1.1.1
In a Bridged 1483 network, which set of configuration commands allows the router to forward requests from the PC to an external DHCP server at 3.3.3.3?() A. set dhcp relay 3.3.3.3 set dhcp relay agentB. enable dhcp relay agent set dhcp relay agentC. set dhcp server 3.3.3.3 enable dhcp relay agentD. enable dhcp server 3.3.3.3 enable dhcp relay agent
How does the ERX Edge Router interact with an external DHCP server in a Bridged 1483 network?() A.It maintains DHCP leases on behalf of subscribers.B.It initiates DHCP requests on behalf of subscribers.C.It passes DHCP traffic to and from the server;you must configure static host routes.D.It passes DHCP traffic to and from the server and inserts host routes into its routing table.
Which of the following types of attacks does DHCP snooping prevent？（Choose all that apply.）（）A、Attacker sends multiple DHCP requests flooding DHCP serverB、Attacker connects rogue server initiating DHCP requestsC、Attacker connects rogue server replying to DHCP requestsD、Attacker sends DHCP jam signal causing DHCP server to crashE、Attacker sends gratuitous ARP replies， thereby jamming the DHCP serverF、Attacker sends unsolicited DHCP replies， thereby jamming the DHCP server
You have a DHCP server named Server1 and an application server named Server2. Both servers run Windows Server 2008. The DHCP server contains one scope. you need to ensure that server2 alwaysreceives the same IP address. Server2 must receive its DNS settings and its Wins settings from DHCP. What should you do？（）A、Create a multicast scopeB、Assign a Static IP address to Server2C、Create an exclusion range in the DHCP scopeD、Create a DHCP reservation in the DHCP scope.
Which CLI command enables the DHCP External Server function on an E-series router?（）A、service dhcp-externalB、set dhcp external serverC、set dhcp-external serverD、dhcp external server
How is DHCP enabled on a server？（）A、Use network options to enable ipforwardingB、Edit /etc/rc.tcpip and enable dhcpsdC、Edit /etc/rc.nfs increase the number of biod daemonsD、Use SMIT to set the server to use DHCP instead of static IP addresses
How does the ERX Edge Router interact with an external DHCP server in a Bridged 1483 network？（）A、It maintains DHCP leases on behalf of subscribers.B、It initiates DHCP requests on behalf of subscribers.C、It passes DHCP traffic to and from the server;you must configure static host routes.D、It passes DHCP traffic to and from the server and inserts host routes into its routing table.
How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCP server?（）A、It monitors messages from the external server and updates the routing table as needed.B、It maintains the leases for the DHCP server and reassigns addresses to new subscribers.C、It sends keep alives to the subscriber and makes the address available when the subscriber stops responding.D、It sends keep alives to the subscriber and removes the host route when the subscriber stops responding.
You are designing a DHCP strategy to meet the business and technical requirements. What should you do？（）A、 Install one DHCP server in each branch office and one DHCP server in Los Angeles.B、 Install one DHCP server in each branch office and two DHCP servers in Los Angeles.C、 Install two DHCP servers in each branch office and one DHCP server in Los Angeles.D、 Install two DHCP servers in each branch office and two DHCP servers in Los Angeles.
多选题Which of the following types of attacks does DHCP snooping prevent？（Choose all that apply.）（）AAttacker sends multiple DHCP requests flooding DHCP serverBAttacker connects rogue server initiating DHCP requestsCAttacker connects rogue server replying to DHCP requestsDAttacker sends DHCP jam signal causing DHCP server to crashEAttacker sends gratuitous ARP replies， thereby jamming the DHCP serverFAttacker sends unsolicited DHCP replies， thereby jamming the DHCP server
单选题you have a DHCP server named server1 and an application server named server2. Both servers run windows server 2008. The DHCP server contains one scope. You need to ensure that server2 always receives the same ip address. Server2 must receive its DNS settings and its wins settings from DHCP. What should you do?（）ACreate a multicast scope.BAssign a static ip address to server2.CCreate an exclusion range in the DHCP scope.DCreate a DHCP reservation in the DHCP scope.
单选题You have a DHCP server named Server1 and an application server named Server2. Both servers run Windows Server 2008 R2. The DHCP server contains one scope.You need to ensure that Server2 always receives the same IP address. Server2 must receive its DNS settings and its WINS settings from DHCP.What should you do？（）ACreate a multicast scope.BAssign a static IP address to Server2.CCreate an exclusion range in the DHCP scope.DCreate a DHCP reservation in the DHCP scope.
单选题How does the ERX Edge Router interact with an external DHCP server in a Bridged 1483 network？（）AIt maintains DHCP leases on behalf of subscribers.BIt initiates DHCP requests on behalf of subscribers.CIt passes DHCP traffic to and from the server;you must configure static host routes.DIt passes DHCP traffic to and from the server and inserts host routes into its routing table.
单选题How dose a DHCP server dynamically assign IP address to host？（）AAddresses are allocated after a negotiation between the server and the host to determine the length ofthe agreement.BAddresses are assigned for a fixed period of time.At the end of period，a newquest for an address mustbe made ，and another address is then assigned.CAddresses are leased to host.A host will usually keep the same address by periodicallycontacting theDHCP sever to renew the lease.DAddresses are permanently assigned so that the host uses the same address at all times.
单选题How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCP server?（）AIt monitors messages from the external server and updates the routing table as needed.BIt maintains the leases for the DHCP server and reassigns addresses to new subscribers.CIt sends keep alives to the subscriber and makes the address available when the subscriber stops responding.DIt sends keep alives to the subscriber and removes the host route when the subscriber stops responding.
单选题How does a DHCP server dynamically assign IP addresses to hosts?（）AAddresses are permanently assigned so that the host uses the same address at all times.BAddresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.CAddresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.DAddresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
多选题You are designing a strategy to assign the IP addresses to meet the business and technical requirement. Which two actions should you perform?（）AInstall and Configure one DHCP server in Atlanta and one DHCP server in each branch office.BInstall and Configure two DHCP servers in Atlanta and two DHCP servers in each branch office.CCreate one scope on each DHCP server. Specify one DHCP server to always update DNS records. Configure the scope to assign half of the IP addresses available to each office.DCreate two scopes on each DHCP server. Specify one DHCP server to update DNS records only for client computers that request it. Specify a second DHCP server to never update DNS records.
单选题You have two servers named Server1 and Server2 that run Windows Server 2003 Service Pack 2 (SP2). Server1 is configured as a DHCP server. You plan to decommission the DHCP service on Server1. You need to move the DHCP server configuration to Server2. The configuration must include all configured scopes, leases, and DHCP options. What should you do first? （）AFrom the DHCP snap-in, export list.BFrom the DHCP snap-in, back up the server.CFrom Windows Explorer, copy the %systemroot%/System32/Dhcp/DHCP.mdb file.DFrom Windows Explorer, copy the %systemroot%/System32/Dhcp/backup/dhcpcfg file.
单选题In a Bridged 1483 network,which set of configuration commands allows the router to forward requests from the PC to an external DHCP server at 1.1.1.1?（）Aset dhcp relay set dhcp server 1.1.1.1Bset dhcp relay agent set dhcp relay 1.1.1.1Cenable dhcp relay enabled hcp server 1.1.1.1Denable dhcp relay agent enable dhcp relay 1.1.1.1
单选题In a Bridged 1483 network, which set of configuration commands allows the router to forward requests from the PC to an external DHCP server at 3.3.3.3?（）Aset dhcp relay 3.3.3.3 set dhcp relay agentBenable dhcp relay agent set dhcp relay agentCset dhcp server 3.3.3.3 enable dhcp relay agentDenable dhcp server 3.3.3.3 enable dhcp relay agent