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Category: CIT143

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CIT143

1 / 50

A data collection instrument will be considered _____________ if it reports the same data every time it is used to mention the same thing.

 

2 / 50

_________ term refers to the data used to describe the information one is looking for in a data store.

 

3 / 50

Examples of data ____________ include textbooks, newspapers, library catalogues and computer databases.

 

4 / 50

Statistical data are expected to be arranged into informative tables

5 / 50

A ______________ is the technical term for a selective or comprehensive list or summary of the data in records of one or more data tables in a database.

 

6 / 50

Information ________________ is the process by which a person searches through a data store for some data or information.

 

7 / 50

_______ data is data that someone had previously created, collected, stored or published.

 

8 / 50

Data protection are often performed to ensure that data are protected from which of the following?

9 / 50

______________ is a pre-defined format for entering data into one or more data tables in a database.

 

10 / 50

The aim of data organization is to facilitate which of the following?

11 / 50

Paper, microforms, human brain are all examples of data _____________ media.

12 / 50

One of these is a process in data management life-cycle

13 / 50

Studies of the existing system aim to collect data and information for improving the system designer's knowledge about the existing system

14 / 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.

15 / 50

Motor car engine can be considered as a good example of a system

16 / 50

A medium that has been used to convey data symbols is called which of the following?

17 / 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?

18 / 50

With regards to a DBMS, a _____________ is a pre-defined way of displaying some or all the records and fields in a data table.

 

19 / 50

The binary number for 8 is ____________. (numeric answer only)

 

20 / 50

Which of these is not a feature of a system?

21 / 50

A data collection instrument is considered _____________ if it can be used to measure a variable with little or no error.

 

22 / 50

Data display and presentation is a critical last stage in the data management cycle

23 / 50

Organizing data in books or computers is a sample activity in which of the following processes?

24 / 50

The binary number for 7 is _______. (numeric answer only)

 

25 / 50

Information systems invariably have subsystems.

26 / 50

System implementation is likely to encounter less problems if the system design is very good

27 / 50

A byte consists of ____________ bits?

28 / 50

Which of the following is a basic guide to action that sets the boundaries within which data management activities take place?

29 / 50

In a DBMS, each record of data is subdivided into separate meaningful portions known as data _______________.

 

30 / 50

One of these is not a disadvantage of manual analysis of data

31 / 50

The process of making decisions about what data should be created and for what purpose is referred to as which of the following?

32 / 50

Data __________ refers to the process of arranging, grouping or linking groups of data for different purposes.

 

33 / 50

The _____________ is a device typically used to input pictures into the computer.

 

34 / 50

___________________ data are data that have been uniformly or logically defined and arranged to facilitate human and machine processing and understanding.

 

35 / 50

Data ____________ refers to the extent to which a set of data expresses accurate and true information about an entity.

 

36 / 50

___________ data model is based on the underlying principle that one can often think of many ways in which each data record can be related or linked to the others.

 

37 / 50

The process of investigating and identifying important attributes of a particular data set is called data ________________.

 

38 / 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.

 

39 / 50

Data ______________ refers to the process of merging two or more originally separate sets of data into a single set of data.

 

40 / 50

The binary number system uses only two symbols – 0 and _____ – in different combinations and sequences to represent quantities.

 

41 / 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.

 

42 / 50

Data protection are often performed to ensure that data are protected from which of the following?

43 / 50

Which of the following is usually described in terms of variables such as accuracy, validity and adequacy?

44 / 50

The process of reducing voluminous data into less voluminous data is called data _____________

 

45 / 50

Data ___________ is concerned with the selection, combination, arrangement and formatting of symbols such as words, numbers and images to form data.

 

46 / 50

Information systems in particular must process data and information for people and other systems in their environments.

47 / 50

When entering data in database the keyboard is used for entering which of the following?

48 / 50

_______________ search is used when the searcher only knows the general area or topic of the information required from a data store.

 

49 / 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.

 

50 / 50

Information systems and sub-systems also require ______ for performing their data management activities

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