Exam 2: Data Preparation and Cleaning

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Which of the following best describes the purpose of a foreign key?

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Which of the following best describes the purpose of a non-key attribute?

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Comparing the number of records that were extracted to the number of records in the source database is an example of validating the data for integrity.

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A flat file is a means of storing data in one place,such as in an Excel spreadsheet,as opposed to storing the data in multiple tables,such as in a relational database.

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After obtaining the data and determining the purpose and scope of the data request,the next step is to validate the data.

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Much like the IMPACT cycle,requesting data is often an iterative process.

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A foreign key is an attribute that exists in relational databases in order to carry out the relationship between two tables.

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A primary key is an attribute that is required to exist in each table of a relational database and serves as the unique identifier for each record in a table.

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Validating date/time fields within the data is an example of which of the following?

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Formatting negative numbers in the data is an example of which of the following?

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At which step of the ETL process should you try to answer the question "What other information will impact the nature,timing and extent of the data analysis?"

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At which step of the ETL process should you try to answer the question "Where are the data located in the financial or other related systems?"

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Descriptive attributes are attributes that exist in relational databases that are neither primary nor foreign keys.

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All of the following are Audit Data Standards (ADS)developed by the American Institute of Certified Accountants except:

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Comparing the number of records within the data is an example of which of the following?

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The L in IMPACT Cycle represents loading.

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Which of the following is most likely to be the primary key in an Employee table?

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A data dictionary is paramount in helping database administrators do which of the following?

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Removing leading zeroes and non-printable characters from the data is an example of which of the following?

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At which step of the ETL process should you try to answer the question "What business problem will the data address?"

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