2022思科认证考试试题(0AB)

1. [单选题]OSPF在同一区域内，下列说法正确的是（）

A. 每台路由器生成的LSA都是相同的
B. 每台路由器的LSDB(链路状态数据库)都是相同的
C. 每台路由器根据该LSDB计算出的最短路径树都是相同的
D. 每台路由器根据该最短路径树计算出的路由都是相同的

2. [单选题]TCP23是（）协议端口号；UDP69是（）端口号；TCP80是（）端口号。

A. TELNET FTP HTTP
B. FTPT FTP HTTP
C. TELNET TFTP HTTP
D. TELNET DNS HTTP

3. [单选题]The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?

A. Assign the switch a higher MAC address than the other switches in the network have
B. Establish a direct link from the switch to all other switches in the network
C. Configure the switch full-duplex operation and configure the other switches for half-duplex operation
D. Configure the switch so that it has lower priority than other switches in the network
E. None of the above

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