What are the primary concepts that support object-oriented programming?

A technician has booted up the 5-year-old computer of a user who complains that the system suddenly no longer uses his add-on audio card. Upon booting, the technician notices that the system time is 10 years in the past. Which one of the following is a probable cause to investigate?

a. The network time server is down. b. The synchronization with atomic clock has failed. c. The user changed the time to avoid passing the expiration date on a trial piece of software. d. The CMOS battery has failed.

Which of the following is the Windows quick key shortcut for the Zoom In tool?

A. [Ctrl][++] B. [Ctrl][+] C. [Spacebar][+] D. [Alt][+]