Virtualization

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Questions and Answers

Which of the following best describes virtualization in computing?

Creating a virtual version of something at a different abstraction level
Creating a physical version of something at a different abstraction level
Creating a physical version of something at the same abstraction level
Creating a virtual version of something at the same abstraction level (correct)

What does hardware virtualization refer to?

Creating a virtual machine that acts like a real computer without an operating system
Creating a physical machine that acts like a virtual computer without an operating system
Creating a physical machine that acts like a virtual computer with an operating system
Creating a virtual machine that acts like a real computer with an operating system (correct)

When did virtualization begin?

In the 1970s
In the 1990s
In the 1980s
In the 1960s (correct)

What is an example of early and successful virtualization?

IBM CP/CMS (B) Signup and view all the answers

What is the purpose of virtualization in computing?

To separate software execution from underlying hardware resources (C) Signup and view all the answers

What is the main function of an operating system?

The main function of an operating system is to manage computer hardware and software resources, and provide common services for computer programs. Signup and view all the answers

What is the role of time-sharing operating systems?

Time-sharing operating systems schedule tasks for efficient use of the system and may include accounting software for cost allocation. Signup and view all the answers

How does the operating system act as an intermediary between programs and hardware?

The operating system acts as an intermediary by handling hardware functions such as input/output and memory allocation. Signup and view all the answers

Where are operating systems commonly found?

Operating systems are found on various devices, including cellular phones, video game consoles, web servers, and supercomputers. Signup and view all the answers