SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Data Warehousing
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Extract - Transform and Load
Dependent data mart
ETL
Metadata
Analytical applications
2. A system that allows people to access and analyse data for business management and performance improvement
Star schema
Aggregate tables
Partioning
Business Intelligence
3. Data accessible to the whole data warehouse
Translation table
Dimensional modelling
Master data
Transform
4. A logical design technique that presents data in a way that is optimised for high-performance access
Enterprise Information Management
Master data
Dimensional modelling
Family
5. Make changes to data so that it is compatible with a new database
Ad hoc query
Transform
Snapshot
Define the grain
6. Data about the data
Metadata
Data mart design
Maintenance
Front end
7. A table containing foreign keys and values
Fact table
Population
Master data
Source system
8. simplest and least costly architecture developed to operate independently of each other - poor solution
Data mart
Master Data Management
Independent data marts
Family
9. A database table that maps (e.g.) manufacturing product IDs to sales product IDs
Data mart
Translation table
Drilling across
Analytical applications
10. Draws data from a data warehouse
Independent data mart
Data mart bus architecture
Dependent data mart
Family
11. Fourth stage of building a data mart
Independent data marts
Business query tool
Aggregate tables
Accessing
12. Most famous data warehouse where a maintable infastructure includes a centralized data warehouse that serves for the needs of all organizational units (most favored 39 percent)
Master Data Management
Hub and spoke Architecture
Decision Support
Business Intelligence
13. Take data from a source system
Family
Extract
Construction
Fact grain
14. A schema where dimensions are only connected to facts
Dependent data mart
Star schema
Business query tool
Transform
15. Requesting information about related facts
Accessing
Define the users
Drilling across
Operational BI
16. Look-up tables referred to by fact tables
Independent data marts
Dimension table
Family
Translation table
17. Issues to consider when deciding EDW architecture: 1. Which database management system (DBMS) should be used? (ex: Crash Data" MS SQL) 2. Will ______________________ be used? 3. Will data migration tools be used to load the data warehouse?4. What too
Independent data mart
Population
Dimension table
Parallel processing and/or partitioning
18. These extend BI into automating and optimising processes
Ad hoc query
Business Intelligence
ELT
Analytical applications
19. Requesting more information about a particular fact
Source system
Define the grain
Dimensional modelling
Drilling down
20. All database architectural fall into one of these two categories: EDW or _________ (independent data marts - data mart bus architecture - hub and spoke architecture - centralized data warehouse - federated data warehouse)
Dependent data mart
Source system
Operational BI
Data mart design
21. Extract - Load and Transform
Snapshot
Enterprise Information Management
Independent data mart
ELT
22. A computer system used to support the day-to-day operations of an organisation
Production report
Ad hoc query
Operational system
Design
23. Draws data from operational or external systems
Data mart design
Independent data mart
Parallel partitioning
Choose the dimensions
24. A simplified form of a data warehouse supporting the work of a single line of business
Choose the dimensions
Load
Independent data mart
Data mart
25. A group of related fact tables
Family
Business Intelligence
Production report
Dependent data mart
26. A tool that allows users to write queries without having to learn SQL
Business query tool
Transaction
Maintenance
Data mart bus architecture
27. Third stage of building a data mart
Choose the dimensions
Population
Snapshot
Master Data Management
28. Tables containing summary records calculated from the main fact tables
Front end
Choose the dimensions
Aggregate tables
Independent data marts
29. Unlike independent data marts the marts are linked via middleware
Drilling down
Current rolling snapshot
Back end
Data mart bus architecture
30. Dimensions which are shared by two or more facts
Design
Conformed dimensions
Data mart bus architecture
Define the grain
31. A schema where dimensions may be connected to facts or to other dimensions
Dimension table
Snowflake schema
Analytical applications
Parallel partitioning
32. A visual display of the most important information needed by a particular user
Fact grain
Maintenance
Dashboard
Decision Support
33. Third stage of the data warehouse data architecture design process
Snapshot
ETL
Choose the dimensions
Maintenance
34. Fifth stage of building a data mart
Fact grain
Parallel processing and/or partitioning
Maintenance
Partioning
35. The level of detail required for a fact to be useful
Fact grain
Define the grain
Extract
Master Data Management
36. Splitting data tables into smaller tables for efficient access.
Operational BI
Dependent data mart
Choose the dimensions
Partioning
37. A group of conformed dimensions
Constellation
Partioning
Snapshot
OLAP
38. First stage of the data warehouse data architecture design process
Ad hoc query
Back end
Define the users
Operational BI
39. A report created by an IT department user
Choose the facts
Production report
Analytical applications
Fact table
40. An operational system that provides data for a business information system
Source system
Dimensional modelling
Analytical applications
Independent data mart
41. Second stage of the data warehouse data architecture design process
Define the grain
Independent data marts
Conformed dimensions
Business query tool
42. The business applications
Star schema
Construction
Dimension table
Front end
43. A single low-level fact representing a single business operation
Decision Support
Ad hoc query
Maintenance
Transaction
44. Used to support day-to-day operations
Operational BI
Snapshot
Production report
Family
45. A daily snapshot for each day of a set period
Current rolling snapshot
Independent data mart
Maintenance
Dimensional modelling
46. A summary record for a specific reporting period
Snapshot
Population
Business query tool
Design
47. A synonym for Business Intelligence
Extract
Analytical applications
Decision Support
Aggregate tables
48. Second stage of building a data mart
Constellation
Transaction
Construction
Aggregate tables
49. Online Analytical Processing
OLAP
Business Intelligence
Snapshot
Decision Support
50. First stage of building a data mart
Design
Business Intelligence
Extract
Transform