● 有 4 个网络地址:192.47.16.254、192.47.17.01、192.47.32.25 和 192.47.33.05,如果子网掩码为255.255.240.0,则这4个地址分别属于 (26) 个子网。下面列出的地址对中,属于同一个子网的是 (27)
(26)
● A multicast router may receive thousands of multicast (71) every day for different groups. If a router has no knowledge about the membership status of the (72) , it must broadcast all of these packets. This creates a lot of traffic and consumes (73). A better solution is to keep a list of groups in the network for which there is at least one loyal member. (74) helps the multicast router create and update this list. For each group, there is one router that has the duty of distributing the (75) packets destined for that group. This means that if there are three multicast routers connected to a network, their lists of groupids are mutually exclusive. A host or multicast router can have membership in a group.
(71)
● 下面能实现NAT 的是 (70) 。
(70)
● 在Windows操作系统中,可以通过 (68) 命令查看DHCP 服务器分配给本机IP 地址。
(68)
● 下面顶级域名中表示政府机构的是 (69) 。
(69)
● 在Windows Server 2003操作系统中通过安装 (67) 组件创建FTP 站点。
(67)
● 在收到电子邮件中,有时显示出乱码,其原因可能是(66) 。
(66)
● 关于DHCP 协议,下列说法中错误的是(65) 。
(65)
● Linux 操作系统中,cd ../..命令的作用是 (63) 。
(63)
● (64)命令可实现重新启动Linux操作系统。
(64)
● 在Windows操作环境中,可以采用(61)命令查看本机当前TCP/IP 连接。
(61)
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