Category: CIT143 0 CIT143 1 / 50 Data ______________ refers to the process of merging two or more originally separate sets of data into a single set of data. Check 2 / 50 When entering data in database the keyboard is used for entering which of the following? Special characters Numerical characters All of the options Alphabetical characters 3 / 50 _______________ search is used when the searcher only knows the general area or topic of the information required from a data store. Check 4 / 50 Data protection are often performed to ensure that data are protected from which of the following? Theft Damage Loss All of the options 5 / 50 Information ________________ is the process by which a person searches through a data store for some data or information. Check 6 / 50 In a DBMS, each record of data is subdivided into separate meaningful portions known as data _______________. Check 7 / 50 _________ term refers to the data used to describe the information one is looking for in a data store. Check 8 / 50 Information system does not provide access to data to one of the following Analyzers Researchers Managers Students 9 / 50 Motor car engine can be considered as a good example of a system Disagree Agree Unsure None of the options 10 / 50 Statistical data are expected to be arranged into informative tables Unsure Agree None of the options Disagree 11 / 50 Information systems in particular must process data and information for people and other systems in their environments. Disagree Agree None of the options All of the above 12 / 50 A data collection instrument will be considered _____________ if it reports the same data every time it is used to mention the same thing. Check 13 / 50 A set of statements that describe the circumstances, objectives and constraints to be followed by people in an organization concerning a particular activity or issue is called which of the following? Rule Policy Norm Law 14 / 50 Paper, microforms, human brain are all examples of data _____________ media. Check 15 / 50 A ___________ view enables one to update data in a table. Check 16 / 50 In system development cycle, ________ study of candidate new systems are undertaken to determine the possibility of designing and establishing a new system to acquire and process data for producing the information required by the users. Check 17 / 50 Data ___________ is concerned with the selection, combination, arrangement and formatting of symbols such as words, numbers and images to form data. Check 18 / 50 _________________ management aims to facilitate the growth and application of ideas from different disciplines for making decisions and solving human problems. Check 19 / 50 The binary number for 8 is ____________. (numeric answer only) Check 20 / 50 The aim of data organization is to facilitate which of the following? computation All of the options effective storage transfer 21 / 50 The binary number system uses only two symbols – 0 and _____ – in different combinations and sequences to represent quantities. Check 22 / 50 System implementation is likely to encounter less problems if the system design is very good Agree Unsure None of the options Disagree 23 / 50 One of these is not a disadvantage of manual analysis of data None of the options Tideousness Time consuming Error-prone 24 / 50 Which of these is not a feature of a system? Environment Sub-systems Goal or objectives Direction 25 / 50 Data protection are often performed to ensure that data are protected from which of the following? Damage All of the options Loss Theft 26 / 50 Organizing data in books or computers is a sample activity in which of the following processes? Check 27 / 50 A ________________ data model is one where data records are grouped or interrelated in terms of being super-ordinate or subordinate to one another i.e. groups of data in a sort of parent - child manner. Check 28 / 50 The in-depth study of the old system usually doesn’t aim to find out how data are being managed by the old system Agree None of the options Unsure Disagree 29 / 50 The process of reducing voluminous data into less voluminous data is called data _____________ Check 30 / 50 A data collection instrument is considered _____________ if it can be used to measure a variable with little or no error. Check 31 / 50 _______ data is data that someone had previously created, collected, stored or published. Check 32 / 50 ____________ management aim to facilitate effective communication and exchange of facts and ideas from and to various knowledge stores, centres and sources such as human experts, books, databases, etc. Check 33 / 50 ________________ management aims to facilitate effective creation, computation and analysis, storage and retrieval, transfer and delivery of data. Check 34 / 50 Microsoft Access, dBase V for Windows, Visual FoxPro, Paradox, Oracle, DB2, etc. are all examples of software for managing __________________. Check 35 / 50 The arrangement of chapters, sections and subsections in a textbook is an example of which of the following data models? Hierarchical Network Consolidated Distributed 36 / 50 The process of investigating and identifying important attributes of a particular data set is called data ________________. Check 37 / 50 The process of making decisions about what data should be created and for what purpose is referred to as which of the following? Data policymaking Data collection Data creation Data definition 38 / 50 Information systems invariably have subsystems. None of the options Unsure Agree Disagree 39 / 50 Examples of data ____________ include textbooks, newspapers, library catalogues and computer databases. Check 40 / 50 ___________________ data are data that have been uniformly or logically defined and arranged to facilitate human and machine processing and understanding. Check 41 / 50 Studies of the existing system aim to collect data and information for improving the system designer's knowledge about the existing system Disagree None of the options Agree Unsure 42 / 50 Data display and presentation is a critical last stage in the data management cycle Unsure Agree Disagree None of the options 43 / 50 The binary number for 7 is _______. (numeric answer only) Check 44 / 50 In a database, the __________________ key field is a field in which the data can never at any time be the same for any two records in a table. Check 45 / 50 The _____________ is a device typically used to input pictures into the computer. Check 46 / 50 Data ____________ refers to the extent to which a set of data expresses accurate and true information about an entity. Check 47 / 50 Which of the following is a basic guide to action that sets the boundaries within which data management activities take place? Data access control Data policy Data security Data management 48 / 50 A byte consists of ____________ bits? Check 49 / 50 A medium that has been used to convey data symbols is called which of the following? Data stream Data store Data mart Data source 50 / 50 Which of the following is usually described in terms of variables such as accuracy, validity and adequacy? Data accuracy Data structure Data validity Data quality Restart quiz Rate this quiz Send feedback