92.将文件file的创建者改为user的命令是 A: chmod user file B: chgrp user file C: chowm user file D: chown file user

作业15：将file文件的所有者更改为root，所属的群组更改为user1组,命令是？ A: chownrootfilechgrpuser1file B: chownroot:user1file C: chownuser1:rootfile D: chmodroot:user2file

假设需要导出某个表table1，只导出表结构，不导出数据，可以使用如下（）命令。 A: EXP user/pwd tables=（name,table1）file=export.dmp Rows=y B: EXP user1/pwd table table1 file=extable1.dmp C: EXP user/pwd tables=（name,table1）file=export.dmp Rows=n D: EXP user1/pwd table=table1 file=extable1.dmp Rows=

A user’s print jobs default to PRINTER_A.The user wants to change their default printer to PRINTER_B.How can the system administrator change the user’s default printer to PRINTER_B？（） A: Execute the command ’piobe -q PRINTER_B’ B: Edit the user’s stanza in the /etc/qconfig file C: Execute the command ’chuser -a QUEUE=PRINTER_B user’ D: Add the line ’export PRINTER=PRINTER_B’ to the user’s .profile

英译汉。11 FTP allows a user to transfer virtually every kind of file that can be stored on a computer from one Internet-connected computer to another.

以下可以正确运行的查询语句有( ) A: select * from user ; B: select * from user where username =’李四’; C: select * from user where 1=1; D: select distinct * from user;

Your company security policy requires complex passwords. You have a comma delimited file named import.csv that contains user account information. You need to create user account in the domain by using the import.csv file. You also need to ensure that the new user accounts are set to use default passwords and are disabled. What shoulld you do（）

【多选题】下面语句可以实现查询user表中“zhangsan”的user,password,logins信息的是 A. select logins,user,password from user where name like ’%zhangsan%’; B. select user,password,logins, from user where name like ’zhangsan’; C. select password,logins,user from user where name=’zhangsan’ limit 1; D. select user,password,logins from user where name=’zhangsan’;

已知用户表 user 有多列,其中字段 id 没有 NULL 值,字段username有NULL值,选项中,不能获得 user 表的总记录数量的 SQL 语句是 A: SELECT COUNT (*) FROM user ; B: SELECT COUNT ( id ) FROM user ; C: SELECT COUNT ( username ) FROM user ; D: SELECT COUNT ( id ) FROM user WHERE 1=1;

You need to recommend changes to the environment that meet the company’s user requirements.   What should you include in the recommendation？（） A: a BranchCache in Distributed Cache mode B: a BranchCache in Hosted Cache mode C: Distributed File System （DFS） namespaces D: Distributed File System （DFS） Replication