2012年思科认证（CCNA）考试练习题精选14
66. The way to get traffic from one segment of the network to another segment is (在网段之间进行通信的方法是.：
A. Bridging
B. Routing
C. Switching
D. All of the above
67. Routing occurs at which layer (路由发生在哪一层.？ 思科认证考试
A. Physical layer
B. Data link layer
C. Network layer
D. Transport layer
68. In general, the bets route selected by a router is one with (一般而言，路由器选择的最佳路由具有何种特性.？
A. Least cost
B. Shortest distance
C. Lowest metric value
D. None of the above
69. A routing table typically includes which of the following (路由表通常包含下列的哪些信息.？
A. Destination network address
B. The total number of networks
C. The number of nodes in each network
D. The total number of routers in a network
70. When a router receives a packet, it accepts or rejects a packet by examining what (当路由器接受到数据包时，它通过检查什么而决定接受或拒绝数据包.？
A. The MAC address of the source of the packet
B. The address of the source network/node number
C. The address of the destination network/node
D. The MAC address of the next router