Which statement (s) regarding object-oriented databases is (are) correct? a. object-oriented databases can use encapsulation, which means new objects can be created faster and more easily by entering new data in the attributes. b. object-oriented databases can handle storing and manipulating all types of multimedia as well as numbers and characters. c. interaction with an object oriented database takes place via query languages which are called by sending a message to an object.

The volume v and paper surface area a of a conical paper cup are given by where r is the radius of the base of the cone and h is the height of the cone. a. by eliminating h, obtain the expression for a as a function of r and v. b. create a user-de ned function that accepts r as the only argument and computes a for a given value of v. declare v to be global within the function. c. for v ! 10 in.3 , use the function with the fminbnd function to compute the value of r that minimizes the area a. what is the corresponding value of the height h? investigate the sensitivity of the solution by plotting v versus r. how much can r vary about its optimal value before the area increases 10 percent above its minimum value?

Most information security incidents will occur because of select one: a. users who do not follow secure computing practices and procedures b. increases in hacker skills and capabilities c. poorly designed network protection software d. increasing sophistication of computer viruses and worms

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication