Which of the following structures refers to the collection of data for all vendors in a relational data base?
参考答案(由小熊题库网聘请的专业题库老师提供的解答)
请点击↑↑↑ 查看官方参考答案 按钮
习题解析
请点击 查看官方参考答案 按钮
您可能感兴趣的题目
1 .Which of the following is a primary function of a database management system?
A Report customization. B Database access authorizations. C Financial transactions input. D Capability to create and modify the database.
2 .A value-added network (VAN) is a privately owned network that performs which of the following functions?
A Route data within a company's multiple networks. B Route data transactions between trading partners. C Provide services to send marketing data to customers. D Provide additional accuracy for data transmissions.
3 .The computer operating system performs scheduling, resource allocation, and data retrieval functions based on a set of instructions provided by the:
A Multiplexer. B Peripheral processors. C Job control language. D Concentrator.
4 .The type of database that is connected by a company's local area networks is a(n):
A Distributed database. B Analytical database. C End-user database. D Data warehouse.
5 .Aldridge Company manufactures and distributes basketballs at various factories in Texas. It controls its manufacturing, distribution, and accounting functions using a combination of Unix and Linux processors. Which of the following statements is correct with respect to its processors and Unix and Linux?
A Linux was originally developed to run on Unix processors. It was then converted to run on PCs. B The majority of Linux is written in the C programming language. C Unix was originally designed to run batch jobs and to take market share away from IBM mainframes. D The Unix operating system is divide...
7 .Which of the following statements concerning the Internet is correct?
A Sending international e-mail is slightly more expensive than sending domestic e-mail. B If a person has Internet access through an Internet Service Provider (ISP), audio and video signals can be transmitted over the Internet for no additional cost if that person has the appropriate hardware and so...
8 .All of the following are characteristics of Internet-based networks, except:
A Immediate transmissions. B High cost. C Use of public communications channels. D An increase in the number of potential trading partners.
9 .Which of the following statements regarding LAN technology is false?
A Broadband means high-speed transmission of data such as cable and DSL. B Modems are used for communication by translating digital data into analog format and vice versa. C A node is a computer, printer, scanner or other device connected to a network. D A network interface card must be installed in...
10 .Which of the following statements best describes a data warehouse?
A Corporation A extracts all payroll data for the Year 1 and stores this information in a separate database. B Corporation D owns a large supercomputer that stores the entire data backup for the whole organization. C Corporation B extracts all human resource data, sales data, purchasing data and dat...
