Computers and IT – GK Questions and Answers (MCQs)
In today’s tech-driven world, basic computer knowledge is no longer optional — it’s essential. From sending emails to using digital banking or filling out online applications, computers play a major role in everyday life. That’s why questions on Computers and Information Technology (IT) have become a regular part of competitive exams and government job interviews.
This section is specially designed to help you build your computer awareness through topic-wise MCQs that are useful for students, job aspirants, and professionals preparing for exams like SSC, IBPS, SBI, UPSC, CDS, NDA, Railways, Teaching, and more. Whether you're from a technical background or just brushing up on basics, practicing these questions will help you score better and stay updated.
What you will learn in Computer GK:
Computer’s basic parts consist of input, output, storage and processing. In the basic Computer GK test section, you will learn the conceptual questions on number systems, different generations of computer, computer’s hardware and software, I/O devices, computer memory etc.
Start preparing for your upcoming government exams with Computer & IT GK and boost your confidence one quiz at a time!
Practice Computers and IT by Category
| C Programming MCQs |
| Computer Fundamentals MCQ |
| Computer Networking MCQs |
| Data Structures & Algorithms MCQs |
| Database MCQs |
| MS Excel MCQs |
| MS Word MCQs |
| Operating System MCQs |
Computers and IT Practice MCQ Question and Answer
722
Which protocol is used for secure web browsing?
723
What does a switch operate at in the OSI model?
724
Which topology uses a central hub or switch?
725
Which IP address class is used for multicasting?
726
Which port does HTTP use by default?
727
What is the main function of a firewall?
728
Which layer of the OSI model handles routing?
729
Which protocol is used for email transfer?
730
Which data communication method is used to transmit the data over a serial communication link?
731
An example of an analog communication method is
732
Data communications monitors available on the software marked include
733
In communication satellite, multiple repeaters are known as
734
An example of a medium speed, switched communications service is
735
Communiction circuits that transmit data in both directions but not at the same time are operating in
736
Avalanche photodiode receivers can detect bits of transmitted data by receiving
737
The loss in signal power as light travels down the fiber is called
738
A band is always equivalent to
739
A remote batch-processing operation in which data is solely input to a 'central computer' would require
740
A protocol is a set of rules governing a time sequence of events that must take place
741
Which of the following transmission systems provide the highest data rate to in individual device?
742
A data terminal serves as an
743
The channel in the data communication model can be
744
Ina synchronous modem, the receive equilizer is known as
745
The receive equilizer reduces delay distortions using a
746
Terminals are required for
747
An example of digital, rather than analog, communication is
748
What is the main difference between DDCMP and SDLC?
749
What is the minimum number of wires needed to send data over a serial communication link layer?
750
Which of the following types of channels moves data relatively slowly?
Benefits of Practicing Computer & IT GK MCQs
- Frequently Asked in Exams: Computer awareness questions are commonly seen in Banking, SSC, Railways, Teaching, and other government exams.
- Score-Boosting Section: A well-prepared computer section can help you improve your overall score with less effort.
- Helpful in Interviews: Demonstrating digital knowledge is an advantage in interviews and group discussions, especially for roles requiring basic computer skills.
- Builds Strong Fundamentals: Practicing MCQs regularly helps strengthen your understanding of key computer and IT concepts.
- Easy to Remember: Repeated quiz practice improves memory retention, especially for definitions, shortcuts, and abbreviations.