下表为一路由器R的路由表。如果该路由器接收到一个源IP地址为192.168.10.2、目的IP地址为192.168.2.10的IP数据报，那么它将把此IP数据报投递到( )。
| 要到达的网络 | 下一路由器 |
192.168.1.0 192.168.2.0 192.168.3.0 192.168.10.0 | 直接投递 192.168.3.2 192.168.10.7 直接投递 |
A．直接投递
B．192.168.3.2
C．192.168.10.7
D．192.168.2.0
参考答案：B
解析： 由路由表可知，R与网络192.168.1.0和网络192.168.10.0直接相连，如果目的 IP地址的网络号是192.168.1.0或192.168.10.0，就能直接传送报文给目的主机了；本题中，目的IP地址为192.168.2.10，网络号为192.168.2.0，R应该把报文传送给与其直接相连的另一个路由器，由这个路由器来再次投递报文。所以R应该把报文投递到192.168.3.2。
Maybe you know the saying, “When you point one finger, there are three fingers pointing back to you.” One wise man had a version of this when he said, “Don't focus on the dust in your brother's eye while the dirt in your own eye.” Why do we do this? Because criticisms are always ourselves. When we criticize others, we do not expose them, but expose ourselves. We our own weakness and smallness. A story in the old tales the difference in wisdom between the good and the bad. Once a king both Nelson and Dick. The king asks Nelson to go out into the kingdom and after finding someone less qualified than himself. Then he asks Dick to go out into the kingdom and return after finding someone than himself. When Fool Dick returns, he tells the king that he couldn't find anyone better than himself. Wise Nelson says that he was to find anyone less qualified than himself on his return. Moral of the story is something about human . Good people always look at their own and faults and consider themselves less qualified than others. Whereas bad people always look at the shortcomings and faults of others and themselves more qualified than others.
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