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单选题
Which statement is correct regarding the operation of DHCP?（）
A
A DHCP client uses a ping to detect address conflicts.
B
A DHCP server uses a gratuitous ARP to detect DHCP clients.
C
A DHCP client uses a gratuitous ARP to detect a DHCP server.
D
If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.
E
If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.
F
If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.
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更多 “单选题Which statement is correct regarding the operation of DHCP?（）A A DHCP client uses a ping to detect address conflicts.B A DHCP server uses a gratuitous ARP to detect DHCP clients.C A DHCP client uses a gratuitous ARP to detect a DHCP server.D If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.E If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.F If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.” 相关考题
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Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true? (Select two answer choices)A. The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.B. The DHCP Discover message uses UDP as the transport layer protocol.C. The DHCP Discover message uses a special Layer 2 multicast address as the destination address.D. The DHCP Discover message uses TCP as the transport layer protocol.E. The DHCP Discover message does not use a Layer 2 destination address.F. The DHCP Discover message does not require a transport layer protocol.
考题
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.
考题
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考题
Which statement is correct regarding the operation of DHCP?()
A.A DHCP client uses a ping to detect address conflicts.(ARP)B.A DHCP server uses a gratuitous ARP to detect DHCP clients.C.A DHCP client uses a gratuitous ARP to detect a DHCP server.D.If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.E.If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.F.If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.
考题
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B.dynamic
C.connection
D.session
考题
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
考题
Which statement is correct regarding the operation of DHCP?（）A、A DHCP client uses a ping to detect address conflicts.(ARP)B、A DHCP server uses a gratuitous ARP to detect DHCP clients.C、A DHCP client uses a gratuitous ARP to detect a DHCP server.D、If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.E、If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.F、If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.
考题
The Company security administrator wants to prevent DHCP spoofing. Which statement is true about DHCP spoofing operation？（）A、 DHCP spoofing and SPAN cannot be used on the same port of a switch.B、 To prevent a DHCP spoofing， the DHCP server must create a static ARP entry that cannot be updated by a dynamic ARP packet.C、 To prevent a DHCP spoofing， the switch must have DHCP server services disabled and a static entry pointing towards the DHCP server.D、 DHCP spoofing can be prevented by placing all unused ports in an unused VLAN.E、 None of the other alternatives apply.
考题
Refer to the exhibit. Which two statements are true about the partial configuration that is shown？（）A、Hosts connected to the FastEthernet0/1 interface will not receive DHCP replies from the routerB、The first DHCP client to connect to the FastEthernet 0/1 interface will receive the IP address10.10.0.1C、The first DHCP client to connect to the FastEthernet 0/0 interface will receive the IP address10.0.0.1D、DHCP requests received on the FastEthernet 0/1 interface will be forwarded to 10.0.0.2E、The first DHCP client to connect to the FastEthernet 0/0 interface will receive the IP address10.0.0.6
考题
Which statement is correct regarding the operation of DHCP?（）A、A DHCP client uses a ping to detect address conflicts.B、A DHCP server uses a gratuitous ARP to detect DHCP clients.C、A DHCP client uses a gratuitous ARP to detect a DHCP server.D、If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.E、If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.F、If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.
考题
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 WKS1B、 Run the netsh add helper command on WKS1C、 Add the DHCP reservation for WKS1 to the second DHCP serverD、 Add both DHCP servers to the RAS and IAS Servers group in the Active Directory domain
考题
Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true?（）A、The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.B、The DHCP Discover message uses UDP as the transport layer protocol.C、The DHCP Discover message uses a special Layer 2 multicast address as the destination address.D、The DHCP Discover message uses TCP as the transport layer protocol.E、The DHCP Discover message does not use a Layer 2 destination address.F、The DHCP Discover message does not require a transport layer protocol.
考题
Which statement describes the process of dynamically assigning IP addresses by the DHCP server?（）A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.B、Addresses are permanently assigned so that the hosts uses the same address at all times.C、Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.D、Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.
考题
DHCP snooping on Cisco Nexus 1000V Series Switches acts like a firewall between untrusted hosts and trusted DHCP servers by doing which of these？ （）A、 validates DHCP messages received from untrusted sources and filters out invalid response messages from DHCP serversB、 intercepts all ARP requests and responses on untrusted portsC、 builds and maintains the DHCP snooping binding database， which contains information about untrusted hosts with leased IP addressesD、 uses the DHCP snooping binding database to validate subsequent requests from untrusted hostsE、 limits IP traffic on an interface to only those sources that have an IP-MAC address binding table entry or static IP source entry
考题
When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）A、When the discovery packet enters the router from the DHCP client.B、Only when the offer packet enters the router from the DHCP server.C、When the acknowledge packet enters the router from the DHCP server.D、Only when the discovery packet leaves the router going to the DHCP server.
考题
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.
考题
Your network consists of a single Active Directory domain. You have a DHCP server named DHCP1 that runs Windows Server 2003 Service Pack 2 (SP2). All client computers run Windows XP Service Pack 3 (SP3). All client computers are configured as DHCP clients. You change the IP address on DHCP1. Users report that they cannot connect to the network. You verify that the client computers do not receive an IP address configuration from DHCP1. You need to ensure that the client computers receive an IP address configuration from DHCP1. What should you do on DHCP1? （）A、Authorize the server.B、Reconcile the scope.C、Enable conflict resolution.D、Restore the server configuration by using the DHCP snap-in.
考题
Your network consists of a single Active Directory domain. You have a DHCP server named DHCP1 that runs Windows Server 2003 Service Pack 2 （SP2）. All client computers run Windows XP Service Pack 3 （SP3）. All client computers are configured as DHCP clients. You change the IP address on DHCP1. Users report that they cannot connect to the network. You verify that the client computers do not receive an IP address configuration from DHCP1. You need to ensure that the client computers receive an IP addressconfiguration from DHCP1. What should you do on DHCP1？（）A、Authorize the server.B、Reconcile the scope.C、Enable conflict resolution.D、Restore the server configuration by using the DHCP snap-in.
考题
单选题The Company security administrator wants to prevent DHCP spoofing. Which statement is true about DHCP spoofing operation？（）A
DHCP spoofing and SPAN cannot be used on the same port of a switch.B
To prevent a DHCP spoofing， the DHCP server must create a static ARP entry that cannot be updated by a dynamic ARP packet.C
To prevent a DHCP spoofing， the switch must have DHCP server services disabled and a static entry pointing towards the DHCP server.D
DHCP spoofing can be prevented by placing all unused ports in an unused VLAN.E
None of the other alternatives apply.
考题
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
考题
单选题Which statement describes the process of dynamically assigning IP addresses by the DHCP server?（）A
Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.B
Addresses are permanently assigned so that the hosts uses the same address at all times.C
Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.D
Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.
考题
单选题Your network consists of a single Active Directory domain. You have a DHCP server named DHCP1 that runs Windows Server 2003 Service Pack 2 （SP2）. All client computers run Windows XP Service Pack 3 （SP3）. All client computers are configured as DHCP clients. You change the IP address on DHCP1. Users report that they cannot connect to the network. You verify that the client computers do not receive an IP address configuration from DHCP1. You need to ensure that the client computers receive an IP addressconfiguration from DHCP1. What should you do on DHCP1？（）A
Authorize the server.B
Reconcile the scope.C
Enable conflict resolution.D
Restore the server configuration by using the DHCP snap-in.
考题
单选题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.
考题
单选题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 WKS1B
Run the netsh add helper command on WKS1C
Add the DHCP reservation for WKS1 to the second DHCP serverD
Add both DHCP servers to the RAS and IAS Servers group in the Active Directory domain
考题
单选题Your network consists of a single Active Directory domain. You have a DHCP server named DHCP1 that runs Windows Server 2003 Service Pack 2 (SP2).All client computers run Windows XP Service Pack 3 (SP3). All client computers are configured as DHCP clients.You change the IP address on DHCP1.Users report that they cannot connect to the network. You verify that the client computers do not receive an IP address configuration from DHCP1. You need to ensure that the client computers receive an IP address configuration from DHCP1. What should you do on DHCP1?（）A
Authorize the server. B
Reconcile the scope. C
Enable conflict resolution. D
Restore the server configuration by using the DHCP snap-in.
考题
单选题Which statement is correct regarding the operation of DHCP?（）A
A DHCP client uses a ping to detect address conflicts.(ARP)B
A DHCP server uses a gratuitous ARP to detect DHCP clients.C
A DHCP client uses a gratuitous ARP to detect a DHCP server.D
If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.E
If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.F
If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.
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