Define and discuss the concept of transitive dependency.
> How would you define object orientation? What are some of its benefits? How are OO programming languages related to object orientation?
> Using a simple invoicing system as your point of departure, explain how its representation in an entity relationship model (ERM) differs from its representation in an object data model (ODM). (Hint: Check Figure G.34.)
> What are the essential differences between the relational database model and the object database model?
> Explain how OO concepts affect database design. How does the OO environment affect the DBA's role?
> What are the advantages and disadvantages of an OODBMS?
> Name and describe the 13 mandatory features of an OODBMS.
> What role does the ER diagram play in the design process?
> Compare and contrast the OODM with the ER and relational models. How is a weak entity represented in the OODM? Give examples.
> What is an object space? Using a graphic representation of objects, depict the relationship(s) that exist between a student taking several classes and a class taken by several students. What type of object is needed to depict that relationship?
> Describe the difference between early and late binding. How does each of those affect the object-oriented data model? Give examples.
> What are the five minimum attributes of an OO data model?
> Explain the concept of abstract data types. How they differ from traditional or base data types? What is the relationship between a type and a class in OO systems?
> Suppose you are currently considering the purchase of a client/server DBMS. What characteristics should you look for? Why?
> Explain what middleware is and what it does. Why would MIS managers be particularly interested in such software?
> What major network communications protocols are currently in use?
> Using the OSI network reference model, explain the communications middleware component's function.
> Describe the client and the server components of the client/server computing model. Give examples of server services.
> Use the following description of the operations of the RC_Charter2 Company to complete this exercise. The RC_Charter2 Company operates a fleet of aircraft under the Federal Air Regulations Part 135 (air taxi or charter) certificate, enforced by the FAA.
> Describe and explain the client/server architectural principles.
> Explain how client/server system components interact.
> What is client/server computing, and what benefits can be expected from client/server systems?
> Discuss and evaluate the following statement: There are no unusual managerial issues related to the introduction of client/server systems.
> Contrast client/server and traditional data processing.
> Describe and contrast the four client/server computing architectural styles that were introduced in this appendix.
> Mainframe computing used to be the only way to manage data. Then personal computers changed the data management scene. How do those two computing styles differ, and how did the shift to PC-based computing evolve?
> You read in this appendix that: An examination of the UCL's Inventory Management module reporting requirements uncovered the following problems: • The Inventory module generates three reports, once of which is an Inventory Movement Report. But the inven
> Modern businesses tend to provide continuous training to keep their employees productive in a fast-changing and competitive world. In addition, government regulations often require certain types of training and periodic retraining. (For example, pilots m
> Describe and discuss the ER model's treatment of the UCL's inventory/order hierarchy: a. Category b. Class c. Type d. Subtype
> During peak periods, Temporary Employment Corporation (TEC) places temporary workers in companies. TEC’s manager gives you the following description of the business: • TEC has a file of candidates who are willing to work. • If the candidate has worked be
> How would you verify the ER diagram shown in Figure QC.4? Make specific recommendations.
> What major factors should be addressed when database system performance is evaluated? Discuss each factor briefly.
> What steps must be completed before the database design is fully implemented? (Make sure that you list the steps in the correct sequence and discuss each step briefly.)
> Why must a conceptual model be verified? What steps are involved in the verification process?
> What is a module interface, and what does it accomplish?
> What is a module, and what role does a module play within the system?
> Write the connectivity and cardinality for each of the entities shown in Question 4. Details from Question 4: PART PART VEND VENDOR PK PART CODE PK,FK1 VEND ID PK,FK2 PART CODE PK VEND ID PART PROD PK,FK1 PART CODE PK,FK2 PROD CODE PROD_CUST PRODUCT
> What is a partial dependency? With what normal form is it associated?
> The dependency diagram in Figure Q6.8 indicates that a patient can receive many prescriptions for one or more medicines over time. Based on the dependency diagram, create a database whose tables are in at least 2NF, showing the dependency diagram for ea
> The dependency diagram in Figure Q6.7 indicates that authors are paid royalties for each book that they write for a publisher. The amount of the royalty can vary by author, by book, and by edition of the book. Figure Q6.7 Book royalty dependency diagr
> The administrators of Tiny College are so pleased with your design and implementation of their student registration/tracking system that they want you to expand the design to include the database for their motor vehicle pool. A brief description of opera
> Given the dependency diagram shown in Figure Q6.6, answer items 6a-6c: FIGURE Q5.6 Dependency Diagram for Question 6 a. Identify and discuss each of the indicated dependencies. b. Create a database whose tables are at least in 2NF, showing the depen
> When is a table in BCNF?
> When is a table in 3NF?
> When is a table in 2NF?
> When is a table in 1NF?
> Suppose that someone tells you that an attribute that is part of a composite primary key is also a candidate key. How would you respond to that statement?
> How would you describe a condition in which one attribute is dependent on another attribute when neither attribute is part of the primary key?
> Why is a table whose primary key consists of a single attribute automatically in 2NF when it is in 1NF?
> What is a surrogate key, and when should you use one?
> What are the client/server's infrastructure requirements and how do they function?
> What actions are taken during the database initial study, and why are those actions important to the database designer?
> Set up an integral for the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Then use your calculator to evaluate the integral correct to five decimal places. (a)
> Set up an integral for the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Then use your calculator to evaluate the integral correct to five decimal places. (a)
> Set up an integral for the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Then use your calculator to evaluate the integral correct to five decimal places. (a)
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) Rz about BC
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) Rz about AB
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) Rz about OC
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R3 about OA
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R2 about BC
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R2 about AB
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R2 about OC
> Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. Then find the area of the region. у 3 sin x, у—2х/п, х>0 y
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R2 about OA
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R1 about BC
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R, about AB
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) R1 about OC
> Refer to the figure and find the volume generated by rotating the given region about the specified line. C(0, 1)| R2 B(1, 1) y= Vx A(1, 0) Rj about OA
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. у — х, у — 0, х — 2, х — 4; about x
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. x = y', x = 1 – y²; about x = 3
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. ху— 1, у — 0, х — 1, х— 2;B about x -
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. у —х', у — 0, х — 1; about x
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. y = sin x, y = cos x, 0 < x </4; about y = -1
> Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. Then find the area of the region. у — 1/х, у — 1/х, х—2 y
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. y = 1 + sec x, y = 3; about y = 1
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. у — х", у — 1, х — 2;B about y — -3 |3D
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. у —х, х — у?;B аbout y — 1
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. х — 2 — у?, х —у%;B about the y-aхis
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. y² = x, x = 2y; about the y-axis
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. y = 6 – x², y = 2; about the x-axis
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. y = x', y = x, x> 0; about the x-axis
> Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. 2х — у?, х — 0, у — 4;B about the y-ахis
> Suppose that a region / has area A and lies above the x-axis. When / is rotated about the x-axis, it sweeps out a solid with volume V1. When / is rotated about the line y = -k (where k is a positive number), it sweeps out a solid with volume V2. Express
> Some of the pioneers of calculus, such as Kepler and Newton, were inspired by the problem of finding the volumes of wine barrels. (In fact Kepler published a book Stereometria doliorum in 1615 devoted to methods for finding the volumes of barrels.) They
> Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. Then find the area of the region. у — х3 — 4х, у %3 2х y
> A hole of radius r is bored through the center of a sphere of radius R > r. Find the volume of the remaining portion of the sphere.
> A hole of radius r is bored through the middle of a cylinder of radius R < r at right angles to the axis of the cylinder. Set up, but do not evaluate, an integral for the volume cut out.
> A bowl is shaped like a hemisphere with diameter 30 cm. A heavy ball with diameter 10 cm is placed in the bowl and water is poured into the bowl to a depth of h centimeters. Find the volume of water in the bowl.
> Find the volume common to two spheres, each with radius r, if the center of each sphere lies on the surface of the other sphere.
> Find the volume common to two circular cylinders, each with radius r, if the axes of the cylinders intersect at right angles.
> (a) Cavalieri’s Principle states that if a family of parallel planes gives equal cross-sectional areas for two solidsS1 and S2, then the volumes of S1 and S2 are equal. Prove this principle. (b) Use Cavalieri’s Princip
> Solve Example 9 taking cross-sections to be parallel to the line of intersection of the two planes.
> (a) Set up an integral for the volume of a solid torus (the donut-shaped solid shown in the figure) with radii r and R. (b) By interpreting the integral as an area, find the volume of the torus. R-
> The base of S is a circular disk with radius r. Parallel cross sections perpendicular to the base are isosceles triangles with height h and unequal side in the base. (a) Set up an integral for the volume of S. (b) By interpreting the integral as an area,
> For what values of m do the line y = mx and the curve / enclose a region? Find the area of the region.
> Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. Then find the area of the region. у 3 (х — 2), у %3Dх 2)°, y = y =
> Suppose that /. For what value of c is the area of the region enclosed by the curves y = cos x, / equal to the area of the region enclosed by the curves /
> Find the values of c such that the area of the region bounded by the parabolas /
> (a) Find the number a such that the line x − a bisects the area under the curve / (b) Find the number b such that the line y = b bisects the area in part (a).
> Find the number b such that the line y = b divides the region bounded by the curves y = x2 and y = 4 into two regions with equal area.
> Find the area of the region bounded by the parabola y = x2, the tangent line to this parabola at (1, 1), and the x-axis.
