某用户分配了8个C类地址块200.16.0.0～200.16.7.0，这8个地址块汇聚的路由可以表示为（），其中可以分配（）个主机地址。
其中可以分配（）个主机地址
A．2032
B．1792
C．1778
D．1600
参考答案：A
解析：
因为题目中给出的C类地址块200.16.0.0～200.16.7.0，所以应该是第三组8位区分块，则8个地址块汇聚的路由应该是200. 16.0.0/21，所以选B，进而算出可以分配的主机地址为2032个。
| 选用下列短语并用其正确形式填空。 | |
2. He won't leave the TV set _________ supper's on the table. 3. Hong Zhanhui is really a kind ma, we should _____him. 4. There are too many students here, so I ____ them ____ six groups. 5. The doctor told him that he may take some fruits, ________ apples, bananas and oranges. 6. We are going to _______ those trees, because they made the vegetables stop growing. 7. Many animals are nearly ______, so we should protect them. 8. Li Dong doesn't like to speak __________. 9. He said he would __________ the chance to study abroad. 10. They usually have lunch at a restaurant, but they have their lunch at home __________. |