Figuring out how to answer operating system interview questions can be quite difficult. There are many different types of questions that you will need to know the answers to if you want a shot at getting hired for an OS development company. The following blog post is designed with the sole purpose of teaching you all about these 10 brilliant operating system interview questions. It includes not only what they are but also tips and tricks on how to answer them!
1. What is an OS?
Ans. An operating system is software that manages the hardware and resources of a computer. It provides the necessary support for programs to execute, makes sure they do not interfere with each other, and lets humans interact with them.
2. What does an OS do?
Ans. One of the most important questions that an OS interviewer may ask is what an operating system actually does. This question can be a little tricky to answer because it’s a broad topic, but you should try and make your explanation as simple as possible. It starts by defining computer hardware like CPU, RAM, hard drive, etc. Then goes on to explain how these components work together in order for software applications to run smoothly on computers without any issues or bugs preventing them from working properly.
3. What are some examples of operating systems?
Ans. Microsoft Windows, Linux, macOS.
There are a lot of different types of operating systems out there and it’s important to know what they all do for the interviewer. You may not be able to answer this question with 100% certainty but you should try your best to list at least three or four examples that come close in order for them to hire you as someone who knows about these things!
4. What does an OS need?
Ans. Windows uses two primary needs: virtual memory (partitioned hard drive) and RAM. Virtual Memory is space on the physical computer storage reserved by software that can be used like real physical memory. It stores information when programs are not running so their program instructions will still be available when they are next run. RAM is used to store information in the short term, like when a program is running and you’re using it for an extended period of time.
5. What does virtual memory do?
Ans. Virtual Memory (RAM) stores information that programs need at present or soon will need so they can continue working smoothly without slowing down due to lack of space in physical memory.
6. Why would we want more virtual memory than real physical storage on our PC?
Ans. The hard drive takes up a lot more room than images stored in RAM which means that if there’s not enough disk space available, some data has to be written onto slower disks instead. This prevents your computer from functioning as expected because reading/writing speeds are much slower and it takes a lot of time for the system to execute programs.
7. What does RAM do?
Ans. RAM is used as temporary storage when your computer needs information that’s not already stored in its memory, like what you see on the screen right now or something you’ve opened up recently. If there was no RAM, then every single action would need to be written back onto hard disks so they could be recalled later which slows down performance significantly. It also means less work can get done at once due to limited space on disk drives!
8. How many bytes are in one megabyte (MB)?
Ans. One MB contains 1024 KBs or kilobytes which equals 1000 bytes. So how many bytes are in one gigabyte (GB)?
One gigabyte (GB) contains 1024 MBs or megabytes which equals 1000000 bytes.
9. How is an operating system typically organized?
Ans. An OS will often be split into two sections: file management and system tools. File management can include things like the ability to create, delete, copy, move files and folders etcetera while System Tools will manage CPU usage for example that could interfere with how a program is running on your computer. Operating systems also come with their own unique features such as the way they handle memory allocation among other things!
10. What are some common differences between Windows and Linux?
Ans. Windows has more proprietary software than open-source – meaning it’s not always easy to find free alternatives but its user interface is much more intuitive. Linux on the other hand has a lot of open-source software but it can be harder to use because many people are still learning how different commands work and what they do.