RRB NTPC Computer and Technology Basics 2

Question 1

Which key is used to undo an action in most applications?

Accepted Answer

Ctrl + Z

Answer

Ctrl + Z is the universal keyboard shortcut to undo the last action in most software applications.

Question 2

The binary number system uses which digits?

Accepted Answer

0 and 1

Answer

The binary number system is base-2 and uses only two digits: 0 and 1.

Question 3

What does 'RAM' stand for?

Accepted Answer

Random Access Memory

Answer

RAM stands for Random Access Memory, which is the computer's temporary working memory.

Question 4

Which of the following is NOT an operating system?

Accepted Answer

Oracle

Answer

Oracle is a database management system, not an operating system; Windows, Linux, and macOS are all operating systems.

Question 5

The Internet was originally developed by which organization?

Accepted Answer

ARPA (US Department of Defense)

Answer

The Internet evolved from ARPANET, a project funded by ARPA (Advanced Research Projects Agency) of the US Department of Defense.

RRB NTPC Practice Test