In many environments, collections of pre-written methods are called ____.
A. templates
B. libraries
C. foundations
D. packages
Answer: B
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Which statement is true when a superclass has protected instance variables?
a. A subclass object can assign an invalid value to the superclass’s instance variables, thus leaving an object in an inconsistent state. b. Subclass methods are more likely to be written so that they depend on the superclass’s data implementation. c. We may need to modify all the subclasses of the superclass if the superclass implementation changes. d. All of the above.
A network ____ has two components: the physical layout of network cables, and devices and the logical path followed by the network packets or frames.
A. protocol B. operating system C. interface card D. topology
WebTrends is a real-world example of an online business that follows the ____ general e-commerce business model.
A. B2C B. B2G C. B2B D. C2C
A(n) ____________________ rule describes how a particular element or piece of content should be displayed.
Fill in the blank(s) with the appropriate word(s).