Database Basics Quiz
Practice quiz on Database Basics (Computer Knowledge). 5 real exam questions.
About This Quiz
Database Basics Quiz — Questions with Solutions
All 5 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.What is the smallest unit of data in a computer system?
- A.Byte
- B.Bit
- C.Nibble
- D.Word
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Answer: B. Bit
A bit (binary digit) is the smallest unit of data.
Q2.What does CPU stand for?
- A.Central Process Unit
- B.Central Processing Unit
- C.Computer Processing Unit
- D.Control Program Unit
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Answer: B. Central Processing Unit
CPU means Central Processing Unit.
Q3.Which of the following is an input device?
- A.Monitor
- B.Mouse
- C.Speaker
- D.Projector
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Answer: B. Mouse
A mouse is used to provide input to the computer.
Q4.Which database key uniquely identifies every record in a table?
- A.Unique Key
- B.Primary Key
- C.Foreign Key
- D.Candidate Key
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Answer: B. Primary Key
A primary key uniquely identifies each record.
Q5.Which keyboard shortcut is used to copy files in Windows?
- A.CTRL + V
- B.CTRL + C
- C.CTRL + X
- D.CTRL + Z
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Answer: B. CTRL + C
CTRL + C is the standard copy shortcut.
Frequently Asked Questions
Is Database Basics Quiz free to attempt on AajExam?
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How long does it take to complete Database Basics Quiz?
Database Basics Quiz runs on a 1-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
Are detailed solutions provided?
Yes. Every question on Database Basics Quiz ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.
Can I attempt Database Basics Quiz multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
Database Basics questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.