If a class B is a pubic base class for a derived class D, then an object of class D bears what relationship to class B?
a) A has-a relationship.
b) A fraternal relationship
c) An is-a relationship.
d) There is no relationship here.
c) An is-a relationship.
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What do the calls to exit(…) do? When exit(0) and exit(1) are called, what receives these arguments and what is done with them?
a) The exit( ) function stops the program. The argument is discarded. b) The exit( ) function is obsolete. There is no longer any such function in the C++ libraries. c) The exit( ) function stops the program. The argument is passed to the operating system which uses it for an error code. d) The exit( ) function temporarily stops the program, and sends the argument to the operating system which uses it for an error code. The operating system restarts the program after fixing the error. e) The exit( ) function allows the systems programmer to escape when the power supply catches fire.
________ is open-source software made by Sun Microsystems
A) OpenOffice B) LibreOffice C) Calligra D) StarOffice
Which of the following are advantages of digital modulation over analog moduation?
A. makes better use of the available spectrum B. performs better when interference is present C. more power is required to transmit D. frequency and phase changes occur continuously
Which of the following changes will Excel NOT track?
A) Functions B) Formatting C) Formulas D) Deletion