计算机考试
计算机考试最新试题
(判断题)
通信设备使用不善或由被他人使用所造成的损失由客户承担。
(单选题)
You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command. Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?()
(单选题)
图样中的尺寸一般以()为单位时,不需标注其计量单位符号,若采用其他计量单位时必须标明。
(单选题)
You are about to create your Oracle data dictionary for use with the database. Which of the following users would you connect to the database as for this purpose in Oracle9i and later releases?()
(判断题)
对成套图纸进行管理的条件是:图纸中必须有反映产品装配关系的零件图。
(判断题)
从通信科技劳动的人际关系看,具有广和远的特点。
(单选题)
NLS parameters can be set using the five methods listed. Put the methods in order from highest to lowest according to Oracle‟s order of precedence: () a. Default setting b. Client environment variable c. Explicit ALTER SESSION statement d. Inside SQL function e. Server initialization parameter
(单选题)
What feature comes into play to help ensure the completion of the backup should one of three backup devices fail during a backup that is using three different channels?()
(单选题)
下列四项中,不是文件属性的是()。
(单选题)
下面关于接入层交换设备的描述正确的是()
(单选题)
数据库管理系统中的字段变量保存在()中。
(单选题)
在CAD中不能应用修剪命令“trim”进行修剪的对象是()
(单选题)
在jquery中,想要给第一个指定的元素添加样式,下面哪一个是正确的()
(单选题)
监理工程师在实施阶段进行进度控制的依据是()实施进度计划。
(单选题)
()选题其内容的选取以用户需求为根本原则。
(判断题)
每一个软件项目都有一个最优的测试量。
(单选题)
下列关于vtp说法正确的是().
(判断题)
所有Windows应用程序共享一个时间片,而非Windows应用程序有自己时间片。()
(单选题)
下列业务中,属于传真通信业务的是()。
(单选题)
802.1Q的封装中,被重写的字段是().