Ch6&7

Ch6&7 - Question 7 1 points Save Which of the...

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Question 1 1 points Save Which item below represents an accuracy problem? A B C D Question 2 1 points Save In addition to item "A" that is does not list the area code, which item above best represents a completeness problem? A - Don't choose this option. B C D Question 3 1 points Save With respect to name, which item above
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represents a consistency problem? A B C D Question 4 1 points Save In addition to item "C", which of the above items represents a uniqueness problem? A B C - don't choose this option. D Question 5 1 points Save Why do relational databases use primary keys and foreign keys? To create a database To create physical relationships To create logical relationships All of the above Question 6 1 points Save What is one of the biggest pitfalls associated with real-time information?
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It is only available to high-level executives due to the expense It is only available in aggregate levels of granularity It continually changes It rarely changes
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Unformatted text preview: Question 7 1 points Save Which of the following is correct in reference to a database? A database can support only one logical view A database can support many physical views A database can support many logical views A database can support up to three logical views Question 8 1 points Save Which of the following is not true about information redundancy? It involves the duplication of information It should always be avoided It can create problems with information quality All of the above are true Question 9 1 points Save What is problematic about redundant information? It is difficult to determine which values are the most curren It is often inconsistent It is difficult to determine which values are the most accurate All of the above Question 10 1 points Save When each transaction, entity, and event is represented only once the information exhibits_____ _____. Accuracy Consistenc y Timeliness Uniquenes s...
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This document was uploaded on 11/17/2011.

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Ch6&7 - Question 7 1 points Save Which of the...

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