如果忘记配置OSPF的router id，则设备缺省下的router id为Loopback最大的地址；如果没有配置Loopback地址，则router id为数值最小的物理接口地址。

A . 正确 B . 错误

A . It is used for type 1 router LSA B . Highest IP address of the loopback is used C . router-id needs to be matched on ospf neighbors D . router-id is 16 bit

A . 192.168.1.1 B . 172.16.1.1 C . 1.1.1.1 D . 2.2.2.2

A . 200 B . 201 C . 0 D . 1

A . 10.1.1.2 B . 10.154.154.1 C . 172.16.5.1 D . 192.168.5.3

A . the IP address of the first Fast Ethernet interface B . the IP address of the console management interface C . the highest IP address among its active interfaces D . the lowest IP address among its active interfaces E . the priority value until a loopback interface is configured

A . 在同一区域内Router ID必须相同，在不同区域内的Router ID可以不同 B . Router ID必须是路由器某接口的IP地址 C . 必须手工配置指定Router ID D . OSPF协议正常运行的前提条件是该路由器存在一个Router ID

A . It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network B . It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router C . It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network D . It is used to determine which interfaces will send Hello packets to neighboring OSPF router

A . It is locally significant and must be the same throughout an area B . It is globally significant and is used to represent the AS number C . It is locally significant and is used to identify an instance of the OSPF database D . It is globally significant and is used to identify OSPF stub area

A . 是可有可无的 B . 必须手工配置 C . 是所有接口中IP地址最大的 D . 可以由路由器自动选择

A . 192.168.1.1 B . 172.16.1.1 C . 1.1.1.1 D . 2.2.2.2

A . DISPLAY ip ospf B . DISPLAY ip ospf error C . DISPLAY ip ospf interface D . DISPLAY ip ospf neighbor

A . 正确 B . 错误

A . display ospf peer B . display ospf error C . display ospf routing D . display ospf lsdb

A . 192.168.2.1 B . 10.1.1.1 C . 192.168.2.0 D . 255.255.255.255

A . 在Point-to-Point链路类型中，Link ID是邻居接口的端口IP地址 B . 在TransNet链路类型中，Link ID是此TransNet网段的网络地址 C . 在StubNet链路类型中，Link ID是Stub网段的网络地址 D . 在Virtual链路类型中，Link ID是虚连接邻居的RouterID

A . 正确 B . 错误

A . 进程ID是配置不当 B . 该OSPF区域配置不当 C . 网络通配符掩码配置不当 D . 网络号配置不当 E . 该AS配置不当 F . 网络的子网掩码配置不当

<img src='https://img2.soutiyun.com/ask/uploadfile/4896001-4899000/833a68b03dc5852281347f7e46ca4486.gif' /> A.network 192.100.10.5 0.0.0.3 area O network 192.1.0.129 0.0.0.63 area l B.network 192.100.10.4 0.0.0.3 area 0 network 192.1.0.128 0.0.0.63 area l C.network 192.100.10.5 255.255.255.252 area 0 network192.1.0.129 255.255.255.192 area l D.network 192.100.10.4 255.255.255.252 area O network 192.1.0.128 255.255.255.192 area l

在配置OSPF路由协议时，命令router ospf 190中，最后的数字“190”位置可表达的最大值为(55)。 A．255 B．1023 C．65535 D．4294967295

是 否

A．网段内 B．区域内 C．自治系统内 D．整个因特网

A．路由器优先选取Loopback接口上数值最高的IP地址作为Router ID B．路由器优先选取物理接口上数值最高的IP地址作为Router ID C．在设备没有配置Loopback接口时，优先选取物理接口上数值最高的IP地址作为Router ID D．在设备没有配置Loopback接口时，优先选取物理接口上数值最低的IP地址作为Router ID

A．TRUE B．FALSE