管理员可以在命令行通过（ ）命令启动DHCP服务A.service dhcpd start B.service dhcpd up C.service dhcpd stop D.service dhcpd down

Linux系统中，DHCP服务dhcpd的缺省配置文件是（64），在配置文件中，为特定主机指定保留IP地址的声明语句是（65）。

（64）

A./etc/dhcpd.conf

B./etc/dhcpd.txt

C./dhcpd.conf

D./dhcpd.txt

（65）

A.subnet

B.range

C.share -network

D.host

试题三（共15分）

阅读以下说明，回答问题1至问题3，将解答填入答题纸对应的解答栏内。

【说明】

在大型网络中，通常采用DHCP完成基本网络配置会更有效率。

【问题1】（1分）

在Linux 系统中，DHCP服务默认的配置文件为 （1） 。

（1）备选答案：

A. /etc/dhcpd.conf B. /etc/dhcpd.config

C. /etc/dhcp.conf D. /etc/dhcp.config

【问题2】 （共4分）

管理员可以在命令行通过 （2） 命令启动 DHCP服务；通过 （3） 命令停止DHCP

服务。

（2） 、（3）备选答案：

A. service dhcpd start B. service dhcpd up

C. service dhcpd stop D. service dhcpd down

【问题3】（10分）

在Linux 系统中配置DHCP服务器，该服务器配置文件的部分内容如下：

subnet 192.168.1.0 netmask 255.255.255.0 {

option routers 192.168.1.254;

option subnet-mask 255.255.255.0;

option broadcast-address 192.168.1.255;

option domain-name-servers 192.168.1.3;

range 192.168.1.100 192.168.1.200;

default-lease-time 21600;

max-lease-time 43200;

host webserver {

hardware ethernet 52:54:AB:34:5B:09;

fixed-address 192.168.1.100;

}

}

在主机webserver 上运行ifconfig命令时显示如下，根据DHCP配置，填写空格中缺少的内容。

该网段的网关IP地址为 （7） ，域名服务器 IP地址为 （8） 。

Refer to the exhibit. Router RTA has been configured as a DHCP server. The two debug commands will generate output on RTA when Ho st A requests an IP address. Which set of DHCPD debug messages is in the correct sequence?（）

A.DHCPD: Sending DHCPOFFER to client DHCPD: DHCPDISCOVER received from client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPACK to client

B.DH CPD: DHCPDISCOVER received from client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPOFFER to client DHCPD: Sending DHCPACK to client

C.DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPACK to client

D.DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPACK to client

E.DHCPD: Sending DHCPACK to client DHCPD: DHCPD ISCOVER received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client

F.DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPACK to client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client

A./etc/dhcpd.conf

B./etc/sysconfig/dhcpd

C./etc/dhcp/dhcpd.leases

D./var/lib/dhcp/dhcpd.leases

A.rC.inet1

B.ilo.conf

C.inetD.conf

D.httpD.conf

● 为保证在启动 Linux 服务器时自动启动 DHCP 进程，应在 （34） 文件中将配置项dhcpd=no改为dhcpd=yes。

（34）

A. /etc/rc.d/rc.inet1

B. /etc/rc.d/rc.inet2

C. /etc/dhcpd.conf

D. /etc/rc.d/rc.s