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Отв: to store and organize data
What is data mining? отв: Why would you create a primary key? отв: What is the difference between verification and validation? отв: What is the difference between an entity and an attribute? отв:? An attribute is a field in a database and entity is a table What tool allows a user to search a database for specific information? отв: A query Which query would you use to present results for 'purple trousers'? Отв: Purple AND trousers In SQL, what does the code 'Title varchar (20)' mean? Отв: Create a field called 'Title' with a string data type and a length of 20 characters Which SQL statement allows a user to find records with similar attributes? Отв: Where Which of the following are NOT objects of an Access database? Check all that apply. отв:. chart 51. In Access, the rows and columns of a table are referred to as __________________. отв: Records and fields 52. Every table in relational database contain a field or combination of fields that can uniquely identify each records, it is called… Отв: Primary key 53. Database Management Systems are featured with: отв: The ability to store large amount of data to facilitate easy update, sort and retrieval 54. Collection of related records in a database is known as… Отв: table 55. A part of database that stores only one type of data is… Отв: Field Which of the following IS personnel is responsible for the maintenance of information systems? Отв: a programmer 57. In one-to-many relationship the table in ‘one’ side is called _______ and on ‘many’ side is called _______ Отв: Parent, Child 58. The complete information about an entity in a database is called… Отв: Record Which of the following is the correct order of keywords for SQL SELECT statements? Отв: Select, From, Where Is the act ferreting out previously unknown patterns and relationships from a set of data. Отв: Data mining 61. The three activities in an information system that produce the information organizations use to control operations are… Отв: data analysis, processing, and feedback. Which of the following statements is true about information? Отв: It is the ability to make predictions based on data. 63. The process of removing the deficiencies and loopholes in the data is called as.... Отв: Cleaning up of data. 64. The Synonym for data mining is … Отв: Knowledge discovery in database 65. Concept description is the basic form of the … Отв: Descriptive data mining 66. Data modeling technique used for data marts is … Отв: Dimensional modeling Which one manages both current and historic transactions? Отв: Online Analytical Processing (OLAP) Which of the following employees data mining techniques to analyze the intent of a user query,provided additional generalized or associated information relevant to the query? Отв: Intelligent query answering Which of the following process includes data cleaning, data integration, data selection, data Transformation, data mining, pattern evolution and knowledge presentation? Отв: KDD process 70. A client device designed so that most processing and data storage occurs on the client side describes: Отв: Fat Client Which of the following is NOT a likely configuration of a Client-Server System? Отв: Single Client- Multiple Server System Which of the following statements regarding Client-server computing are true?
Отв: The Client server environment is typically homogeneous and single-vendor. The hardware flat form and Operating system of Client and Server are usually the same 73. In the Client-Server architecture, the component that processes the request and sends the response is… Отв: Server Which of the following is an example of an URL? Отв: Www.google.com 75. The principle of serial equivalence for distributed transactions says that… Отв: When several transactions are executed concurrently, the result should be the same as if they had been executed in sequence
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