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Importance of Operating Systems Quiz

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Questions and Answers

What is the main purpose of an operating system?

To execute all machine instructions in Kernel mode

To update existing system functions easily

To provide a graphical user interface

To control input/output devices (correct)

In which mode of operation does the OS have complete access to all hardware resources?

Kernel mode (correct)

User mode

Input/output mode

Machine instruction mode

What aspect of an operating system contributes to making computers more convenient to use?

Updateability for improving existing systems

Efficiency in resource use

Providing a user interface (correct)

Controlling IO devices

Which mode of operation allows only a subset of machine instructions for the user?

User mode Signup and view all the answers

What role does the operating system play in terms of data transfer?

Controlling input/output devices Signup and view all the answers

What is the main role of the OS as a resource manager?

To allocate scarce resources and protect programs from interference Signup and view all the answers

In the context of OS management, what does 'context switching' refer to?

Switching between processes in the CPU Signup and view all the answers

What is the primary purpose of virtual memory management by the OS?

To allocate and free memory locations for processes Signup and view all the answers

How does the OS manage file systems effectively?

By translating file names to data locations and managing persistent storage Signup and view all the answers

Which function falls under the responsibility of OS in terms of security services?

Protecting resources from unauthorized access Signup and view all the answers