How many processes truly can execute concurrently in a system at any time?

a) any number
b) at least as many as there are processors
c) at most as many as there are processors
d) none of the above


c) at most as many as there are processors

Computer Science & Information Technology

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When updating a control from a non-GUI thread, you must ________.

a) launch a separate thread to perform the update b) notify the GUI thread that you’ll be updating it in another thread c) ensure that the update doesn’t corrupt the GUI thread’s activities. d) schedule that update to be performed by the GUI thread

Computer Science & Information Technology

An operating system with _____ capabilities allows a user to run more than one program concurrently.

A. networking B. hardware independence C. memory management D. multitasking

Computer Science & Information Technology

You can easily delete a file by ____ it and then selecting the Delete option.

A. double-clicking B. left-clicking C. clicking D. right-clicking

Computer Science & Information Technology

What do you do if there is an error message when you reboot the computer after installing RAM?

A) Turn the computer off and wait 30 seconds before turning it on again. B) The RAM chip is defective, so return it to the place of purchase for replacement. C) Take the RAM chip out and try reinserting it. D) Remove the processor and reinsert it, so it can initialize the RAM.

Computer Science & Information Technology