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Data and information are essentially the same thing. |
False. Data is raw fact. Information is processed data. |
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Data processing can be as simple as organizing data to reveal patterns. |
True |
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We are now said to be entering the "knowledge age." |
True |
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Information implies familiarity, awareness, and understanding knowledge as it applies to an environment. |
False KNOWLEDGE implies familiarity, awareness and understanding of INFORMATION as it applies to an environment. |
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Data constitute the building blocks of information. |
True |
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Metadata present a more complete picture of the data in the database than the data itself. |
True |
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The only way to access the data in a database is through the DBMS. |
True |
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Database programming languages receive all application requests and translate them into the complex operations required to fulfill those requests. |
False |
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The DBMS reveals much of the database’s internal complexity to the application programs and users. |
False |
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One disadvantage of the DBMS is that it increases the risk of data security breaches. |
False The DBMS DECREASES the security risk. |
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An operational database is sometimes referred to as an enterprise database. |
False operational / OLTP / transactional / production database enterprise database refer to size – used by entire organisation, support many users |
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A data warehouse can store data derived from many sources. |
True |
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The same data might be simultaneously structured and unstructured depending on the intended processing. |
True |
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Corporations use only structured data. |
False Unstructured data is used to produce structured data. Both types are used. |
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Historically, a manual file system was composed of a system of file folders and filing cabinets. |
True |
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Initially the files within a computer file system were similar to manual files. |
True |
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Structural dependence exists when it is possible to make changes in the file structure without affecting the application program’s ability to access the data. |
False Structural INDEPENDENCE exists when you can change the file structure without affecting the application’s ability to access the data. |
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A query language is a procedural language. |
False A query language is a NON-PROCEDURAL language (user specifies WHAT without having to specify HOW). |
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One disadvantage of a database system over previous data management approaches is increased costs. |
True |
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One advantage of a database system over previous data management approaches is that the database system is considerably less complex. |
False Advantages: improved data sharing, data security, data integration improved data access, decision making, end-user productivity minimised data inconsistency |
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