2005-fall-cs4604-midterm

2005-fall-cs4604-midterm - CS4604 Midterm Please enter the...

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Unformatted text preview: CS4604 Midterm October 12, 2005 Please enter the following information: Name: ID: Please do not write below this line. Question Maximum Score Score 1 5 2 5 3 5 4 30 5 20 6 15 7 20 Total 100 1 1. (5 points) A relationship R connecting entity sets E and F has referential integrity from E to F , i.e., the edge connecting R and F has a rounded arrow directed towards F . Circle all the following statements that may be true: (a) R is many-many from E to F . (b) R is many-one from E to F . (c) R is many-one from F to E . (d) R is one-one from E to F . 2. (5 points) Circle True or False . A relation with two attributes A and B satisfies the functional dependency A → B . Then the functional dependency B → A also holds in the relation. 3. (5 points) Circle True or False . R is a many-one relationship from entity set E to entity set F . The following ODL schema correctly represents E , F , and R . class E { relationship set<F> EtoR inverse F::FtoR; } class F { relationship E FtoR inverse E::EtoR; } 2 4. (30 points) In this question, you will draw an E/R diagram to model the television show “Iron Chef.” Do not worry if you have not seen this show! 1 The show features a set of four “Iron Chefs,” each one an expert in precisely one of the following cuisines: Chinese, French, Italian, and Japanese. Iron Chefs are famous; their name serves to identify them uniquely. Each episode, identified by an episode number,famous; their name serves to identify them uniquely....
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2005-fall-cs4604-midterm - CS4604 Midterm Please enter the...

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