Test
quiz 7
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Preguntas del test (25)
1________ can compare two or more data sets to identify patterns and trends.
- ACompetitive monitoring
- BData-driven decision management
- CCompetitive analysis
- DComparative analysis
2What is a central location in which data is stored and managed?
- AData broker
- BRepository
- CData warehouse
- DData aggregation
3One example of a data aggregation is to gather information about particular groups based on specific variables such as age, profession, or income.
- ATrue
- BFalse
4A data lake is a business that collects personal information about consumers and sells that information to other organizations.
- ATrue
- BFalse
5Which of the following describes ETL?
- AA process that transforms information using a common set of enterprise definitions
- BA process that loads information into a data warehouse
- CA process that extracts information from internal and external databases
- DAll of the choices are correct
6What is information that people use to support their decision-making efforts?
- AInformation cleansing and scrubbing
- BBusiness intelligence
- CData-mining tools
- DData mining
7Which of the following is a problem associated with dirty data?
- AMisleading data
- BFormatted data
- CCorrect data
- DAll of the choices are correct
8What do data warehouses support?
- AOLTP
- BAnalytical processing
- COLAP and analytical processing
- DOLAP
9Which of the following is incorrect in terms of data warehousing and business intelligence?
- ADoes not include information from other operational applications
- BOperational information frequently has quality issues
- COperational information is mainly current
- DOperational systems are integrated
10A data warehouse is a central location in which data is stored and managed.
- ATrue
- BFalse
11What does standardization of data elements accomplish?
- AGreater accuracy
- BIncreases the quality of information
- CCompleteness and completeness
- DAll of these
12Business analysis is different from operational databases. Which of the following is not a reason why?
- AThe data is standardized.
- BEvery department has its own method for recording data.
- CThe data collected is not always useful for intended purposes.
- DData stored in operational databases did not allow users direct access.
13What is a data map?
- AA technique for establishing a match, or balance, between the source data and the target data warehouse
- BAn approach to business governance that values decisions that can be backed up with verifiable data
- CA storage repository that holds a vast amount of raw data in its original format until the business needs it
- DA business that collects personal information about consumers and sells that information to other organizations
14According to Gartner Inc., dirty data is an MIS problem, not a business problem.
- ATrue
- BFalse
15Which of the following identifies the primary location where data is collected?
- ACompetitive monitoring
- BComparative analysis
- CData-driven decision management
- DSource data
16A data map is a technique for establishing a match, or balance, between the source data and the target data warehouse.
- ATrue
- BFalse
17Gender can be referred to in many ways (Male, Female, M/F, 1/0) in a data warehouse. Ensuring gender is referenced the same way is an example of ________.
- AStandardizing information
- BStreamlining data points
- CInformation scaling
- DStandardizing protocols
18What is erroneous or flawed data?
- AData map
- BDirty data
- CData point
- DData set
19What is source data?
- AA storage repository that holds a vast amount of raw data in its original format until the business needs it
- BIdentifies the primary location where data is collected
- CAn approach to business governance that values decisions that can be backed up with verifiable data
- DA technique for establishing a match, or balance, between the source data and the target data warehouse
20Business intelligence can provide managers with the ability to make better decisions. Which of the following is not an example of how different industries use business intelligence?
- ACompare the demographics of patients with critical illnesses
- BUnderstand customer credit card usage and nonpayment rates
- CAnalyze popular vacation locations with current flight listings
- DAll of these are examples of how industries use business intelligence
21In a data warehouse, information cleansing occurs first during the ETL process and again once the information is in the data warehouse.
- ATrue
- BFalse
22A data broker is an individual item on a graph or a chart.
- ATrue
- BFalse
23Business analysis is different from operational databases. Which of the following is not a reason why?
- AThe data is of poor quality.
- BThe data collected is not always useful for intended purposes.
- CEvery department has its own method for recording data.
- DWhen sharing data, the data matches with the data warehouse and users get the data they need.
24What is a storage repository that holds a vast amount of raw data in its original format until the business needs it?
- AData lake
- BData broker
- CData map
- DData point
25ETL stands for extraction, transformation, and loading.
- ATrue
- BFalse
Información
- Descripción
- Test sobre quiz 7 , creado por Luis Juarez el 22/10/2021.
- Autor
- Luis Juarez
- Idioma
- English
- Visitas
- 2
- Valoración
- Aún sin valoraciones Valora este test