MCQS

Computer Science

The correct answer is 'A. Disk Operating System' because DOS is a type of operating system that manages the storage and retrieval of data on a computer's hard drive. This term specifically refers to the operating system that was commonly used in personal computers during the 1980s and 1990s.

The correct answer is 'A. Minimize all applications' because pressing the Windows key + Shift + M keyboard shortcut is used to restore all minimized windows. This combination of keys is specifically designed to reverse the action of minimizing all applications, making it the correct choice for this question.

The correct answer is 'A. Real Time' because real-time processing refers to the immediate processing of data as it is received, without any delay. This means that the job is processed by the computer as soon as it is received, ensuring timely and efficient execution. Therefore, in the context of the question, the time during which a job processed by the computer is 'Real Time' indicates that the processing occurs instantly without any delay.

The correct answer for this question is 'Soft Copy' because the output received on the display screen or in audio or video form is intangible and not physical, making it a digital or electronic version of the information. Soft copies can be easily edited, duplicated, and shared electronically, distinguishing them from hard copies which are physical prints of the information.

The correct answer for this question is 'Viruses' because viruses are a type of malicious software that can be delivered to a PC through email attachments. Viruses are specifically designed to do harm to a computer system by corrupting files, stealing information, or causing other types of damage. This makes viruses a common threat to computer security when opening email attachments.

The correct answer is '4 pair' because an RJ45 UTP cable typically consists of 8 individual cables twisted into 4 pairs. Each pair is twisted together to reduce interference and crosstalk, making it suitable for transmitting data over long distances with minimal signal loss. Therefore, the cable has 4 pairs of cables for a total of 8 individual cables.

The correct answer is 'A. Basic Input Output system' because BIOS is a program that initializes and controls the hardware components of a computer, such as the keyboard, mouse, and monitor. It is responsible for the basic input and output operations of a computer system, making 'Basic Input Output system' the most accurate description of its function.

The correct answer is 'A. Employee address' because an employee address is a piece of information that is not represented by numbers. Addresses typically consist of letters, numbers, and other characters, making it an example of non-numeric data. This distinguishes it from numeric data, which is represented by numbers.

The correct answer is 'A. Minimize file/folder' because WindowsM is a keyboard shortcut used in Windows operating systems to minimize the currently active window or folder. This option accurately describes the function of the WindowsM shortcut and its purpose in the Windows environment.

The correct answer is 'A. Redundant Array of Independent Disks' because RAID is a technology that combines multiple disk drives into a single unit for data protection, performance improvement, or both. The term 'Redundant Array of Independent Disks' accurately describes the purpose and function of RAID in combining multiple disks for redundancy and improved performance.