Operating System - Study Mode

[#251] During the boot process, the ..... looks for the system file
Correct Answer

(B) BIOS

Explanation

Solution: BIOS (basic input/output system) are the program a computer's microprocessor uses to start the computer system after it is powered on. It also manages data flow between the computer's operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.

[#252] Which of the following resources must be protected by the operating system?
Correct Answer

(D) All of the above

Explanation

Solution: Typical resources include the central processing unit (CPU), computer memory, file storage, input/output (I/O) devices, and network connections. Management tasks include scheduling resource use to avoid conflicts and interference between programs.

[#253] What are the two types of Semaphore?
Correct Answer

(C) Counting Semaphores and Binary Semaphores

Explanation

Solution: Semaphore is a simply a variable. This variable is used to solve critical section problem and to achieve process synchronization in the multi processing environment. The two most common kinds of semaphores are counting semaphores and binary semaphores . Counting semaphore can take non-negative integer values and Binary semaphore can take the value 0 & 1 only.

[#254] Font folder is located on
Correct Answer

(C) Control Panel folder

Explanation

Solution: All fonts are stored in the C:WindowsFonts folder. You can also add fonts by simply dragging font files from the extracted files folder into this folder. Windows will automatically install them. If you want to see what a font looks like, open the Fonts folder, right-click the font file, and then click Preview.

[#255] From where do you change mouse setting?
Correct Answer

(C) Control panel >> mouse

Explanation

Solution: Open Mouse Properties by clicking the Start button and then clicking Control Panel. Click the Buttons tab, and then do any of the following: To swap the functions of the right and left mouse buttons, under Button configuration, select the Switch primary and secondary buttons check box.