question

1) Big Data is the name given to the enormous datasets generated by Web 2.0 applications.

answer

TRUE

question

2) Business Intelligence (BI) systems are information systems that help users analyze and use data.

answer

TRUE

question

3) Business Intelligence (BI) systems support operational activities.

answer

FALSE

question

4) Business Intelligence (BI) systems obtain data in three different ways.

answer

TRUE

question

5) Business Intelligence (BI) reporting systems are used to filter data, sort data, group data and make simple calculations based on the data.

answer

TRUE

question

6) Business Intelligence (BI) reporting systems can analyze data using standard SQL.

answer

TRUE

question

7) BI reporting systems summarize the current status of business activities and compare that status with past events but not with predicted future activities.

answer

FALSE

question

8) Data Mining uses sophisticated statistical and mathematical techniques to perform what-if analyses, to make predictions, and to facilitate decision making.

answer

TRUE

question

9) Report delivery is more difficult for data mining than it is for reporting systems.

answer

FALSE

question

10) Problematic data include so-called "dirty data."

answer

TRUE

question

11) A data warehouse is a database system that has data and programs for, as well as personnel specialized in, BI processing.

answer

TRUE

question

12) Data warehouses are populated with data prepared by Extract, Transform, and Load (ETL) systems.

answer

TRUE

question

13) A data mart is a collection of data that addresses a particular component or functional area of a business.

answer

TRUE

question

14) Operational databases store historical data.

answer

FALSE

question

15) Dimensional databases are used for analytical data processing.

answer

TRUE

question

16) Dimensional databases use the star schema.

answer

TRUE

question

17) Operational databases contain a fact table.

answer

FALSE

question

18) A star schema resembles a star, with a dimension table at the center and fact tables radiating out from the center.

answer

FALSE

question

19) In a snowflake table, each dimension table is normalized.

answer

TRUE

question

20) OLAP provides the ability to sum, count, average and perform other simple arithmetic operations on groups of data.

answer

TRUE

question

21) The term drill down refers to the capability of seeing the data in smaller and smaller units.

answer

TRUE

question

22) NoSQL really stands for "Not only SQL."

answer

TRUE

question

23) Apache Cassandra is an example of a column family database.

answer

TRUE

question

24) Column family databases are indistinguishable from relational database tables.

answer

FALSE

question

25) In the MapReduce process, the Reduce step is followed by the Map step.

answer

FALSE

question

26) To create an OLAP report for an Access 2013 database, use the PivotTable tool in Access 2013.

answer

FALSE

question

27) When creating an OLAP report based on Access 2013 data, it is often a good idea to create a view equivalent query to organize the data needed for the OLAP report.

answer

TRUE

question

28) Excel 2013 allows us to connect directly to an Access 2013 database when building a PivotTable.

answer

TRUE

question

29) Excel 2013 cannot import Access 2013 data directly into a PivotTable report, but must first place the data into a worksheet.

answer

FALSE

question

30) Although Excel 2013 will create a PivotTable report using Access 2013 data, it does not have formatting tools that can be used with the report.

answer

FALSE

question

31) Business Intelligence (BI) systems do which of the following? A) Analyze current and past activities B) Predict future events C) Record and process transactions D) Both A and B E) All of the above

answer

D

question

32) Business Intelligence (BI) systems fall into which of the following categories? A) Processing B) Reporting C) Data mining D) Both A and B E) Both B and C

answer

E

question

33) Business Intelligence (BI) systems obtain their data by which of the following means? A) Read and process data from an operational database B) Process extracts from operational databases C) Process data purchased from data vendors D) Both A and B E) All of the above

answer

E

question

34) Business Intelligence (BI) reporting systems can do which of the following operations? A) Filter data B) Group data C) Modify data D) Both A and B E) All of the above

answer

D

question

35) A Business Intelligence (BI) reporting system that uses extensions to SQL is: A) cluster analysis. B) OLAP. C) regression analysis. D) RFM analysis. E) All of the above

answer

B

question

36) Data mining applications are used to accomplish which of the following tasks? A) Perform what-if analysis B) Make predications C) Facilitate decision making D) Both A and B E) All of the above

answer

E

question

37) Which of the following is true about data mining applications? A) They use sophisticated mathematical techniques. B) They use sophisticated statistical techniques. C) Their report delivery is more difficult than report delivery for reporting systems. D) Both A and B E) All of the above

answer

D

question

38) Which of the following is a reason that operational data are difficult to read? A) Dirty data B) Missing values C) Non-integrated data D) Both A and B E) All of the above

answer

E

question

39) We have obtained access to the company's operational data. In one record, we find that a customer's age has been recorded as "337." This is an example of: A) dirty data. B) inconsistent data. C) non-integrated data. D) a "wrong format" problem. E) a "too much data" problem.

answer

A

question

40) We have obtained access to the company's operational data. We examine 50 records for customers with phone numbers that should use the current area code of 345. Of these 50 records, we find 10 that still use an older area code of 567. This is an example of: A) dirty data. B) inconsistent data. C) non-integrated data. D) a "wrong format" problem. E) a "too much data" problem.

answer

B

question

41) A data warehouse database differs from an operational database because: A) data warehouse data are not stored in tables. B) data warehouse databases do not have metadata. C) data warehouse data are often stored in a dimensional database. D) Both B and C E) All of the above

answer

C

question

42) A data mart differs from a data warehouse in that: A) it has a smaller database. B) it deals with a particular component or functional area of the business. C) data mart users do not have the data management expertise of data warehouse employees. D) Both A and B E) All of the above

answer

E

question

43) Data warehouses use a(n): A) operational database. B) dimensional database. C) structured storage. D) Either A or B E) All of the above

answer

B

question

44) Slowly changing dimensions are handled by a(n): A) operational database. B) dimensional database. C) structured storage. D) Either A or B E) All of the above

answer

B

question

45) Dimensional databases are used to track historical data and therefore must have a: A) time dimension. B) customer dimension. C) sales dimension. D) Either A or B E) Both A and B

answer

A

question

46) Star schemas have a ________ at the center of the star. A) fact table B) dimension table C) map table D) reduce table E) None of the above

answer

A

question

47) Snowflake schemas have normalized: A) fact tables. B) dimension tables. C) map tables. D) reduce tables. E) None of the above

answer

B

question

48) OLAP stands for: A) Online Analytical Processing. B) Offline Analytical Processing. C) Online Analysis Process. D) Offline Analysis Process. E) Old, Lazy And Particular.

answer

A

question

49) The term drill down means the user wants to: A) summarize data. B) get older data. C) sort data. D) get more details. E) aggregate data.

answer

D

question

50) When distributed databases break the database into sections and store the sections on different servers, this is known as: A) replication. B) partitioning. C) disbursing. D) distributed two-phase locking. E) None of the above

answer

B

question

51) When distributed databases create copies of the database on different servers, this is known as: A) replication. B) partitioning. C) disbursing. D) distributed two-phase locking. E) None of the above

answer

A

question

52) Non-relational DBMSs associated with the NoSQL movement include: A) Key-Value. B) Document. C) Column Family. D) Graph. E) All of the above

answer

E

question

53) Apache Cassandra is an example of a(n) ________ non-relational DBMS. A) Key-Value B) Document C) Column Family D) Graph E) Object-Oriented

answer

C

question

54) In the MapReduce process, the first step is the ________ step. A) column B) super column C) column family D) map E) reduce

answer

D

question

55) Hadoop is a(n): A) RDMBS. B) OODBMS. C) distributed file system (DFS). D) print system. E) Web server.

answer

C

question

56) To create an OLAP report for an Access 2013 database, we can build a PivotTable in: A) Microsoft Access 2013. B) Microsoft Word 2013. C) Microsoft Visio 2013. D) Microsoft Excel 2013. E) Microsoft PowerPoint 2013.

answer

D

question

57) To use the Access 2013 database in an Excel 2013 PivotTable, it is generally useful to: A) create a view-equivalent query in Access to organize the data. B) store the needed data in an Excel worksheet. C) store the needed data in a Word document. D) store the needed data in a PowerPoint slide show. E) store the needed data in a Visio diagram.

answer

A

question

58) To use Access 2013 data in an Excel 2013 PivotTable, we use the: A) "To Excel" command on the Access Data command tab. B) "To Excel" command on the Excel Data command tab. C) "From Access" command on the Access Data command tab. D) "From Access" command on the Excel Data command tab. E) "Get Data" command on the Excel Data command tab.

answer

D

question

59) To arrange the PivotTable columns and rows in Excel 2013, we use the: A) PivotTable Control. B) PivotTable dialog box. C) PivotTable Field List. D) PivotTable Wizard. E) PivotTable command tab.

answer

C

question

60) To format a PivotTable in Excel 2013, we use the: A) Design command tab in the PivotTable Tools contextual command tab. B) Format command tab in the PivotTable Tools contextual command tab. C) Design command tab in the Report Tools contextual command tab. D) Format command tab in the Report Tools contextual command tab. E) Report Tools command tab.

answer

A

question

61) The term for the enormous datasets generated by Web 2.0 applications is ________.

answer

Big Data

question

62) A(n) ________ is an information system that helps users analyze and use data.

answer

Business Intelligence (BI) system

question

63) Business Intelligence (BI) systems fall into two broad categories: ________ and ________.

answer

reporting and data mining

question

64) Business Intelligence (BI) systems obtain data in ________ different ways.

answer

three

question

65) Business Intelligence (BI) ________ are used to filter data, sort data, group data and make simple calculations based on the data.

answer

reporting systems

question

66) Business Intelligence (BI) ________ uses sophisticated statistical and mathematical techniques to perform what-if analyses, to make predictions, and to facilitate decision making.

answer

data mining

question

67) Problematic data are called ________.

answer

dirty data

question

68) Data warehouse data is often stored in a(n) ________.

answer

dimensional database

question

69) Data warehouses are populated with data prepared by ________ programs.

answer

Extract, Transform and Load (ETL)

question

70) A(n) ________ is a collection of data that addresses a particular component or functional area of a business.

answer

data mart

question

71) A dimensional database uses a(n) ________.

answer

star schema

question

72) A variant of the star schema is the ________.

answer

snowflake schema

question

73) In the snowflake schema, the ________ tables are normalized.

answer

dimension

question

74) To deal with data values that change over time, dimensional databases use a(n) ________.

answer

slowly changing dimension

question

75) To deal with historical data values, dimensional databases use a(n) ________.

answer

time dimension

question

76) ________ provides the ability to sum, count, average and perform other simple arithmetic operations on groups of data.

answer

OLAP

question

77) The term ________ refers to the capability of seeing the data in smaller and smaller units.

answer

drill down

question

78) OLAP reports can be created using the Excel 2013 ________ tool.

answer

PivotTable

question

79) Distributed databases can be distributed by partitioning and ________.

answer

replication

question

80) Objects have ________, which are computer programs that perform some task.

answer

methods

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