Data Resource Management — 35% of assessment Flashcards
When using extract, transform, and load (ETL), what is done during the “transform” step?
The data are normalized and structured.
What is the key characteristic that differentiates a datamart from a data warehouse?
A datamart is smaller and more specialized in its focus than a data warehouse.
A marketing employee is tasked with mailing discount coupons to the company’s top 100 customers by sales volume. The marketing employee only has lists of customers’ names, customers’ addresses, and the sales generated by each customer. Which process should this employee use to ensure coupons are mailed to the correct customers?
Data mining
What is the velocity of big data?
The speed of data produced in a given time
What is it called when an organization implements security procedures to protect the hardware, network, and software from intrusion?
System-level security
Which term is used to refer to data that come from many different sources in various structures?
Disparate data
What are scrubbed data?
Data that have been validated for accuracy
When a company spends money on data management, it uses a metric to measure the benefit of this spending relative to the cost.
What is this metric called?
Return on investment
One perpetual issue with corporate data is ensuring the data are accurate and valid. Procedures that apply to end users, managers, and IT personnel are often put in place to ensure good data.
What is the term that describes this effort?
Data governance
Which level of management gets the most detailed reports directly from the transaction processing system?
Supervisors
A large online retailer uses a decision support system (DSS) to develop scenarios for the executive team to evaluate.
What is the primary source of the data used by this DSS?
The transaction processing system (TPS)
What is a key capability of a decision support system?
It compiles data from many systems to assist in decision-making.
Endothon Company buys cabinet hardware from one manufacturer. Due to limited storage space for inventory, Endothon has partnered with the manufacturer to ship hardware just when it is needed.
Which component of the IT supply chain could the company set up to efficiently communicate what it needs each week?
An extranet that provides the manufacturer access to data at Endothon
The IT department of a company has been asked to provide systems for financial and investment management.
Which business department has the greatest need for this type of system?
Accounting
Which strategy can be used to help a company’s web page appear on the first page of search results in a browser?
Search engine optimization