题目内容

以下关于 VRRP 报文中 MAC 地址的设置正确的说法是:

A. 目的 MAC 地址使用广播 MAC 地址
B. 目的 MAC 地址使用组播 MAC 地址;
C. 源 MAC 地址使用虚拟 MAC 地址
D. 源 MAC 地址使用 Master 接口的物理 MAC 地址

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以下关于 VRRP 协议中各定时器的说法正确的是

A. VRRP 消息通告间隔默认为 1 秒,关联到同一虚拟路由器的 VRRP 路由器上配置的 VRRP 消息通告间隔必须一致
B. 配置抢占延迟时间为 4 秒,表示如果 4 秒中之内没有收到 Master 发送的 VRRP 通告消息,则 Slave 应当成为新的 Master
C. 配置抢占延迟时间为 4 秒,配置 VRRP 消息通告间隔为 2 秒,表示如果 6 秒中之内没有收到 Master 发送的 VRRP 通告消息,则 Slave 应当成为新的 Master
D. 在比较繁忙的网络中,应当适当的将抢占延迟设置为一个较大的值,以避免不必要的 VRRP 角色振荡

VRRP,VRID 的含义是虚拟路由器的编号,因此配置了相同的 VRID 的路由器就在同一组中,可以互相作为备份

A. 对
B. 错

Jennifer Holland is a writer who went to Papua New Guinea to do research for an article on birds of paradise. She later shared her experiences there.Jennifer Hollands favorite species of bird of paradise is Carola's parotia. Its dance 1 includes motions such as bowing, flapping, and 2 to move the heavy and 3 wirelike feathers on its head, in hopes of winning one of the watching females. "Its mating dance is so 4 that I could hardly keep from laughing."For a couple of nights, Holland stayed in a tiny village with a local family. It is the custom of the local people to build a fire pit in the center of the room. Because she was not accustomed to the smoke, it was very 5 on her eyes and lungs. "My eyes watered constantly, I coughed like a new smoker, and I had to step outside regularly to get fresh air-much to the delight of the local kids who sat on the steps waiting for us to emerge."

下列关于页眉页脚,说法正确的是( )

A. 页眉线就是下划线
B. 页码可以插入在页面指定的位置
C. 插入的对象在每页中可见
D. 页码可以直接输入

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