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Which two tasks does the Dynamic Host Configuration Protocol

题目
多选题
Which two tasks does the Dynamic Host Configuration Protocol perform?（）
A

Set the IP gateway to be used by the network.

B

Perform host discovery used DHCPDISCOVER message.

C

Configure IP address parameters from DHCP server to a host.

D

Provide an easy management of layer 3 devices.

E

Monitor IP performance using the DHCP server.

F

Assign and renew IP address from the default pool.

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相似问题和答案

第1题：

Which of the following are advantages of using Dynamic Host Configuration Protocol?()

A. IP addresses can be managed from a central point

B. Computers can automatically get new addressing when moved to a different network segment

C. Media Access Control addresses can be changed automatically

D. The network speed can automatically adjust based on the type of traffic being generated

E. The HOSTS file on the computer can be validated for proper entries


参考答案：A, B

第2题：

DHCP是下面哪些英语单词的缩写().

A.Dynamic Host Configuration Protocol

B.Dynamic Host Connection Protocol

C.Dynamic Hot Connection Protocol

D.Denial Host Configuration Protocol


参考答案：A

第3题：

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.


正确答案：AB
A,B 解析：Explanation:
DHCP uses UDP as its transport protocol. DHCP messages from a client to a server are sent to the DHCP server port (UDP port 67), and DHCP messages from a server to a client are sent to the DHCP client port (UDP port 68).The client broadcasts a DHCPDISCOVER message on its local physical subnet. The DHCPDISCOVER message may include options that suggest values for the network address and lease duration. BOOTP relay agents may pass the message on to DHCP servers not on the same physical subnet.

Each server may respond with a DHCPOFFER message that includes an available network address in the "ipaddr" field (and other configuration parameters in DHCP options). Servers need not reserve the offered network address, although the protocol will work more efficiently if the server avoids allocating the offered network address to another client. The server unicasts the DHCPOFFER message to the client (using the DHCP/BOOTP relay agent if necessary) if possible, or may broadcast the message to a broadcast address (preferably 255.255.255.255) on the client's subnet.

Incorrect Answers:
C. DHCP messages are broadcast to the "all hosts" address. IP multicast addresses are not used.

D. UDP is used, not TCP.

E. Since DHCP is used so that a client can obtain an IP address, a layer two destination address must be used, as the layer 3 IP address does not yet exist on the client for the return traffic.

F. DHCP, along with nearly every other type of traffic, requires the use of a transport layer protocol.

第4题：

On router R1， which three of the following protocols will be forwarded to a host specified by the "iphelper-address" interface configuration command if the configuration has not been modified by the"ip forward-protocol udp" global configuration command？（）

  • A、BOOTP
  • B、TFTP
  • C、ARP
  • D、DNS
  • E、proxy-ARP
  • F、FTP
  • G、CDP

正确答案:A,B,D

第5题：

DHCP是下面哪些英语单词的缩写（）.

  • A、Dynamic Host Configuration Protocol
  • B、Dynamic Host Connection Protocol
  • C、Dynamic Hot Connection Protocol
  • D、Denial Host Configuration Protocol

正确答案:A

第6题：

The Dynamic Host Configuration Protocol provides configuration parameters to Intemet （ ）. DHCP consists of two components: a （ ） for delivering host-specific configuration parameters from a DHCP server to a host and a mechanism for allocation of network addresses to hosts. DHCP is built on a client-server model, where designated DHCP server hosts allocate network addresses and deliver （ ） parameters to dynamically configured hosts. DHCP supports three mechanisms for IP address allocation. In "automatic allocation", DHCP assigns a （ ） IP address to a client. In "dynamic allocation", DHCP assigns an IP address to a client for a limited period of time. In "manual allocation", a client&39;s IP address is assigned by the network （ ）, and DHCP is used simply to convey the assitped address to the client.

A.switchB.termmalC.hostsD.usersA.routerB.protocolC.hostD.mechanismA.controlB.broadcastC.configurationD.transmissionA.permanentB.dynamicC.cormectionD.sessionA.controllerB.userC.hostD.administrator


正确答案：C,B,C,A,D

第7题：

The Dynamic Host Configuration Protocol provides configuration parameters to Internet（ ）.DHCP consists of two components:a（ ）for delivering host-specifie configuration parameters from a DHCP server to a host and a mechanism for allocation of network addresses to hosts.DHCP is built on a client-server model,where designated DHCP server hosts allocate network addresses and deliver（ ）parameters to dynamically configured hosts.DHCP supports three mechanisms for IP address allocation.In“automatic allocation”,DHCP assigns a（本题）IP address to client.In“dynamic allocation”,DHCP assigns an IP address to a client for a limited period of time.In“manual allocation”,a client’s IP address is assigned by the network（ ）,and DHCP is used simply to convey the assigned address to the client.

A.permanent
B.dynamic
C.connection
D.session

答案：B
解析：

第8题：

下面的缩写中,哪一个是不准确的()。

A.DNS-Dynamic Naming Service

B.UDP-User Datagram Protocol

C.DHCP-Dynamic Host Configuration Protocol

D.TFTP-Trivial File Transfer Protocol


参考答案：A

第9题：

Which two functions does Cisco Configuration Assistant provide?（）

  • A、wireless connectivity
  • B、call routing configuration
  • C、device discovery
  • D、call forwarding
  • E、command line configuration

正确答案:B,C

第10题：

A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）

  • A、For the two vlans to communicate，a network statement for the trunk interface needs to be added to the  OSPF configuration.
  • B、For the two vlans to communicate， a network statement for each subinterface needs to be  added  to the OSPF configuration.
  • C、Direct inter-vlan communication does not require OSPF
  • D、OSPF cannot be used if router-on-a-stick is configured on the router

正确答案:C

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