A(n) ____ shows the relationship between screens in an interactive GUI program.
A. entity diagram
B. data flow diagram
C. use case diagram
D. interactivity diagram
Answer: D
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Suppose each of the following Update operations is applied directly to the database of Figure 3.6. Discuss all integrity constraints violated by each operation, if any, and the different ways of enforcing these constraints:
(a) Insert < 'Robert', 'F', 'Scott', '943775543', '21-JUN-42', '2365 Newcastle Rd, Bellaire, TX', M, 58000, '888665555', 1 > into EMPLOYEE. (b) Insert < 'ProductA', 4, 'Bellaire', 2 > into PROJECT. (c) Insert < 'Production', 4, '943775543', '01-OCT-88' > into DEPARTMENT. (d) Insert < '677678989', null, '40.0' > into WORKS_ON. (e) Insert < '453453453', 'John', M, '12-DEC-60', 'SPOUSE' > into DEPENDENT. (f) Delete the WORKS_ON tuples with ESSN= '333445555'. (g) Delete the EMPLOYEE tuple with SSN= '987654321'. (h) Delete the PROJECT tuple with PNAME= 'ProductX'. (i) Modify the MGRSSN and MGRSTARTDATE of the DEPARTMENT tuple with DNUMBER=5 to '123456789' and '01-OCT-88', respectively. (j) Modify the SUPERSSN attribute of the EMPLOYEE tuple with SSN= '999887777' to '943775543'. (k) Modify the HOURS attribute of the WORKS_ON tuple with ESSN= '999887777' and PNO= 10 to '5.0'.
A digital image could be used as a ____ in Illustrator.
A. gradient B. blend C. clipping mask D. bitmap image
When writing a procedure in VBA, comment lines start with a(n) ________ mark
Fill in the blank(s) with correct word
Which of the following command prompt utilities displays the current version of Windows XP and any Service Packs that are installed?
A. CHECKVER.EXE B. VERSION.EXE C. SIGVERIF.EXE D. WINVER.EXE