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A user calls t

题目

A user calls to report they are getting I/O errors on a file system. Which of the following tools should be used to isolate this problem？（）

  • A、df
  • B、diagrpt
  • C、errmsg
  • D、errpt
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相似问题和答案

第1题：

A good writing _____ clear organization and choice of words.

A calls on

B calls for

C calls up

D calls off


参考答案B

第2题：

Which of the following describes the BEST course of action when a user continuously calls atechnician with computer issues instead of the helpdesk?()

A. Put all other work orders on hold and assist the user with all their computer issues.

B. Have another technician take over support calls for this user.

C. Explain that the user needs to fill out a work order for the computer problems.

D. Ask the user to call another technician for more in-depth assistance.


参考答案：C

第3题：

Today the energy problem becomes critical. It ____ an immediate solution.

A calls on B calls for C calls up D calls at


正确答案：B

第4题：

A well-written composition __________ good choice of words and clear organization among other things.

A．calls for
B．calls on
C．calls up
D．calls off

答案：A
解析：
考查动词短语辨析。call for“要求，需要”，call on“号召，请求”，call up“使人想起”，call off“取消，停止做”。句意为“一篇好文章，除其他因素外，还要求选词优美，组织清晰”。故选A。

第5题：

在SQL Server 2008中，某数据库用户User在此数据库中具有对于表数据的查询和更改权限。现要收回User对于T表的数据更改权，下述是实现该功能的语句，请补全该语句。【8】UPDATE ON T FROM User。


正确答案：
REVOKE【解析】对数据的访问是通过SQL Server 2008的权限层次结构进行管理的。可以通过GRANT、DENY和REVOKE语句来管理这个权限层次结构。三种语句的作用分别为：①GRANT：允许一个数据库用户或角色执行所授权限指定的操作；②DENY：拒绝一个数据库用户或角色的特定权限，并且阻止它们从其他角色中继承这个权限；③REVOKE：收回已经授予的权限。

第6题：

在SQL Server 2000中，某数据库用户User在此数据库中具有对T表数据的查询和更改权限。现要收回User对T表的数据更改权，下述是实现该功能的语句，请补全语句。

______UPDATE ON T FROM User


正确答案：REVOKE
REVOKE 解析：收回权限
REVOKE对象权限名[,…]ON{表名|视图|存储过程名}
FROM{数据库用户名|用户角色名}[,…]

第7题：

A customer, who brings their laptop to work on a daily basis, calls to ask for the best way to add USB ports and an additional network card to their laptop. Which of the following would meet the user’s requirements?（）

A. Docking station

B. Self powered USB hub

C. KVM switch

D. Non-powered USB hub


参考答案：A

第8题：

now the problem of air pollution is becoming critical. it__________ an immediate solution.

A. calls off

B. calls for

C. calls up

D. calls on


参考答案：B

第9题：

A user needs to create a trigger that will update table T2 whenever a row is added to table T1. Assuming the user has all appropriate privileges for table T2, which privilege is required on table T1 to create the trigger?（）

A.REFERENCES

B.SELECT

C.UPDATE

D.ALTER


参考答案：D

第10题：

Which two statements are true about voice ports on a router？ （）

  • A、 Calls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.
  • B、 Calls to the PSTN can be made via FXS or T1/E1 trunk ports.
  • C、 Analog and IP phones can be connected to the VoIP network via FXO or T1/E1 trunk ports.
  • D、 Calls between analog phones that are attached to the FXS ports in a VoIP network can be completely processed by voice-enabled routers.

正确答案:A,D

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