20 IT Questions And Answers That Will Make You An Expert

If you are looking for some engaging questions for the IT tests, then you are at the right place.

In this article, I have made a list of some important questions that will give you an edge over your competitors.

1. What does it mean to be computer literate?

To be computer literate means that you know how to use computers to do specific tasks, such as creating graphics and documents, performing mathematical calculations, or playing video games.

2. What is a computer?

A computer is an electronic device that can store, retrieve, and process information. A computer is a programmable machine that uses logic and mathematics to process data.

3. What is an operating system?

An operating system is a program that controls the hardware in your computer, manages files and processes input/output (I/O). It also executes programs so you can use them.

4. What is the difference between a PC and a laptop?

Both are personal computers, but a laptop is more portable than a desktop. A desktop computer has an attached monitor, keyboard and mouse. A laptop can be used almost anywhere, but does not have these components attached to it.

5. What is a computer network?

A computer network is a collection of computers and other devices connected to share information.

6. What is the difference between an operating system and an application?

An operating system is the central control system that manages all the hardware resources (hard disk, RAM, CPU) of your computer. It provides an environment in which applications can be run by users. An application usually has its own set of rules to follow while running on a computer system.

Also Read: Ultimate Guide To Operating System Types, Examples, and Functions

7. What is the difference between a personal computer (PC) and a server?

A personal computer (PC) refers to any device that may be used for everyday computing activities such as word processing, spreadsheets, emailing, watching videos, etc., whereas a server refers to centralized computing systems which provide shared resources for many users over a network.

8. What is a virtual machine?

A virtual machine is software that mimics the hardware of another computer, so you can run a program or an application on it. For example, VirtualBox operates as a virtual machine.

9. State the difference between a hard drive and a solid state drive?

There are two basic types of drives: hard drives and solid state drives. A hard drive is the most familiar type of storage device, with a spinning platter that stores data on its surface. This process can be slow because it requires movement to read from or write to the platter

A solid state drive, or SSD, is an electronic storage device consisting of flash memory instead of rotating magnetic media. They are faster than traditional hard drives because there’s no mechanical limit on how fast the data can move around inside them.

10. How do I get my computer to work the way I want it to?

You will have to know what software your computer has installed and how to use it properly for it to work for you.

11. What’s the difference between a CD-ROM drive and a DVD drive?

A CD-ROM drive reads CDs while a DVD drive reads DVDs (which are similar in size but not identical). Most CD-ROM drives are capable of reading both CDs and DVDs but not all DVD drives can read CDs at all – only those that come with DVD.

12. What is Information Technology?

Information technology (IT) is a broad term that describes the use of computers and related hardware in order to process, store and communicate information. IT also includes computer-related software, products and services.

13. What are the benefits of Information Technology?

Cost reduction: IT allows companies to reduce their overhead expenditures by automating processes and providing information on demand.

Saves time: It saves time for employees who no longer have to manually input data into databases or enter orders into order processing systems.

Quality of life improvement: Many organizations use IT for employee communications & collaboration tools, which allow employees to communicate more effectively within the company or with other teams around the globe.

14. What are the most IT Skills?

  • Communication skills
  • Problem-solving skills
  • Analytical skills
  • Technical skills i.e., programming
  • Troubleshooting skills i.e., fixing a computer or network problem
  • Leadership and planning abilities for IT projects

15. Why do we need information systems?

Information systems are used to store, process and retrieve information. They help in the decision-making process.

16. What is Information System?

Information System is a field of study that deals with the study, design and implementation of information systems. These include computerized systems that collect, process and store data for use in business or other organizational activities.

17. How do I back up my files?

Backing up your files is an important part of security because it helps protect against data loss from hardware failures or other disasters. There are several ways to back up your files: local backups, remote backups, cloud backups, etc., so choose whichever method works best for you based on your specific needs and budget.

18. What is cloud computing?

Cloud computing is a type of IT infrastructure that provides shared resources, such as servers, storage and applications. Users can access these resources from any location via the internet without having to install software locally.

Cloud computing allows users to share resources among multiple users in an efficient manner by using virtualization technology.

19. What is the difference between SQL and MySQL?

SQL is the language used to write queries in relational databases. MySQL is an open-source database that runs on top of SQL.

20. What does the DBA do in a database environment?

The DBA manages the database architecture, design and implementation. They are responsible for:

  • Managing the security of the database
  • Optimizing the performance of a given environment
  • Making sure that the environment is available at all times
  • What are the different roles in database administration?
  • The database administrator (DBA) is responsible for the day-to-day operations of a database. They manage all aspects of their company’s data including:
  • Updating and maintaining the operating system, application software, and hardware
  • Creating reliable backup strategies to ensure that no data loss occurs during disasters such as fires or earthquakes


If you are interested in learning more about IT, there are a lot of books that can help. Here are some suggestions:

Read books that discuss the field or areas of expertise that interest you. For example, if you want to know more about networking, read books on networking; if you like cloud computing and server administration, look for titles on those subjects as well.

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