根据信息卡回答问题.

Personal Data 

Name: David              Age: thirteen                Sex: Male

Address: Ningbo, Zhejiang, China                 Postal code: 315010

Fax : 87256931          Telephone: 87254721     E-mail: david @sina.com 

Fruit: apples, oranges      Animal: pandas 

小题1:Is David thirty? ________________________________.

小题2:Does he live in Zhejiang? _________________________________.

小题3:What’s David’s telephone number? ___________________________.

小题4:What fruit does he like? ____________________________________.

小题5:What animal does he like? ______________________________________.

简述在机房上机上交作业时如何在服务器上实现可以写入文件但不可以打开阅读的共享权限设置。