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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?
1. Assume the role of a CFO of a mid-sized company that exports to Europe. Your company received a contract to supply components to a German manufacturer. Discuss the various approaches available to help you accurately forecast exchange rates. Identi..
Project manager at BAE responsible for the installation of the BHS at DIA
Choose another company in the US auto industry and characterize that company’s commitment to the environment - list in bullet points its commitment to the environment.
Analyzing the cultural differences between Canada and Japan and how those differences are contributing to the communication impasse described in the exercise.
What does alkyne acidity mean?
Assignment 2Requirements:“In a globally competitive organisation, everyone understands that long-term profitability is achieved by improving customer satisfaction, not by trying to sell the largest possible quantities of what the accounting system sa..
Research into the medical causes of infant mortality.
Please find an article published in the last three years on the same topic or the topic of physician's acceptance of advertising in today's environment. Please respond to this message
Suggest how the firm might have resolved its forecasting difficulties.
Describe your experience of Earth/space science from when you were a student in primary school. What misconceptions did you have about Earth's place in space?
Mobile communication is the best example for paperless communication. Identify some unexplored areas where it can be effectively used. Also compare its effectiveness with other forms of communication.
Strategic plan
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