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1. (TCO B) For a relationship to be considered a binary relationship, it must satisfy which of the following conditions? A. It must involve exactly two entity classes. B. It must have a maximum cardinality of 1:1. C. It must have a maximum cardinality of 1:N. D. It must have two entity instances that satisfy the relationship. Both A and D Question 2.2. (TCO B) The characteristics of a thing are described by its _____. identifiers entities objects attributes relationships Question 3.3. (TCO C) Which of the following is not true about surrogate keys? They are identifiers that are supplied by the system, not the users. They have no meaning to the users. They are non-unique within a table. They can be problematic when combining databases. The DBMS will not allow their values to be changed. Question 4.4. (TCO C) Many-to-many relationships are represented by _____. two tables with an M:N relationship two tables with a 1:N relationship an intersection table that has M:N relationships with the two tables an intersection table that has 1:N relationships with the two tables two intersection tables that each have 1:N relationships with the two tables Question 5.5. (TCO C) In relational database design, ID-dependent entities are used to _____. represent N:M relationship handle associative relationships handle multivalued attributes handle archetype/instance relationships All of the above Question 6.6. (TCO B) Match the following terms to their definitions. Potential Matches: 1 : something that the users want to track in their environment 2 : an entity that holds specialized attributes that distinguish it from one or more other similar entities 3 : describes characteristic of an entity 4 : an entity whose identifier includes the identifier of another entity 5 : an entity whose existence depends on the presence of another entity but whose identifier does not include the identifier of the other entity Answer : ID-dependent entity : Subtype : Weak entity : Attribute : Entity Question 7. 7. (TCO C) How would you represent a one-to-many strong entity relationship in a physical relational database design?
Compare and contrast RAND's Six Steps (2005) and Leppitt's Integrated Model (2006). Be sure to include an explanation of when an organization would prefer to use one model over the other and the disadvantages of using each model.
Discuss the impact of this trend on teambuilding and performance management.
phase 4 individual project deliverable length general order proposal of 1000-1250 words details weekly tasks or
Describe the future path of the economics of oil
Power and Politics in Your Organisation please wrote 1000 words, Think about the potential influences that power and politics may have on your scenario organisation. Consider all perspectives, including the organisation's employees, managers and hum..
How does headphones work in ac bridges in null detection?
Discuss the application of mitigation, preparedness, response, and recovery to the Hurricane Katrina disaster. Write a 5-7 page summary of your findings for possible presentation to the class.Grading for this project will take into account the ..
1. List all the registration system stakeholders. How is each group affected?
Inventory turnover rate
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1) Is Theory Z still relevant today?
n a 3-4 page paper, consider the following questions and explain your position of the issues: Do you think that this girl is receiving adequate care? Should she be able to see a primary-care physician before her condition gets so acute that she must ..
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