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Top 100 Basic Computer Questions and Answers

9 months ago 52.1K Views
Q :  

Which key is used in conjunction with another key to perform a specific task?

(A) control

(B) spacebar

(C) Arrow

(D) none of these

Correct Answer : A
Explanation :

1. The Control key, also called the Ctrl key, is a modifier key found on most computer keyboards. It's usually located in the lower left part of the keyboard, next to the Caps Lock and Tab keys.

2. The Control key is used in combination with other keys to perform various keyboard shortcuts. For example, pressing Ctrl+C copies the selected text to the Clipboard, pressing Ctrl+V pastes text from the Clipboard, and pressing Ctrl+S saves the current document.

3. Various uses of control keys-

Ctrl+C: Copy

Ctrl+V: Paste

Ctrl+X: Cut

Ctrl+Z: Undo

Ctrl+Y: Redo

Ctrl+A: Select all

Ctrl+B: Bold

Ctrl+I: Italic

Ctrl+U: Underline

Ctrl+S: Save

Ctrl+O: Open

Ctrl+N: New

Ctrl+P: Print

Ctrl+F: Find

Ctrl+H: Replace

Pressing Ctrl+Shift+Esc opens the Task Manager.

Pressing Ctrl+Alt+Delete opens the Windows Security screen.


Q :  

What is the full form of USB?

(A) Universal sequence bus

(B) Union sequence bus

(C) Universal Serial Bus

(D) Universal Serial Book

Correct Answer : C
Explanation :

1. The full form of USB is Universal Serial Bus.

2. USB is a wired device with the help of which you can connect any other device like mobile with laptop, mobile with computer etc.

3. Apart from this, you can also insert a memory card inside the laptop with its help because it is a port in which we can insert things like Pendrive, Card Reader, Data Cable etc.


Q :  

Which type of computer is used to study earthquakes?

(A) Mainframe computer

(B) Mini computer

(C) Micro computer

(D) Super computer

Correct Answer : D
Explanation :

1. Supercomputer is a powerful computer in terms of data storage capacity, performance and data processing.

2. A supercomputer is a powerful computer that can process large amounts of data and computations very quickly.

3. Supercomputers perform copious amounts of mathematical calculations.

4. Supercomputers are used for a wide variety of applications, including meteorology, medical research, and nuclear weapons research.


Q :  

What is a drone?

(A) An unmanned aerial vehicle

(B) Wi-Fi technology

(C) Web browser

(D) Wireless charger

Correct Answer : A
Explanation :

1. In technical language, the drone is an unmanned aircraft. These drones are formally known as Unmanned Aerial Vehicles (UAVs) or Unmanned Aircraft Systems (UASs). Drones are flying robots that are controlled via remote or fly automatically through software-controlled flight plans, which are embedded systems that work with the help of sensors and GPS.


Q :  

What are the services of E-Mitra through the web portal?

(A) Payment of electricity/water bill

(B) Applying for Original Residence Certificate / Domicile Certificate

(C) Registration in Employment Exchange

(D) All of the above

Correct Answer : D
Explanation :

Application for Government Services and Fee Payment: Using the e-Mitra portal, citizens can apply for various government services and pay fees. These services include-

- Bill payment Home

- Application for certificates

- Filing of grievances

- Birth certificate

- Death certificate

- Caste certificate

- Basic address proof

- Ration card

- Passport

- driving license


Q :  

Which of the following screen lock is available on Android devices?

(A) Pattern

(B) Pin

(C) Password

(D) All of the above

Correct Answer : D

Q :  

What is the complete form of Mooc?

(A) Master of Online Courses

(B) Massive Open Online Courses

(C) Massive Operation on Courses

(D) None of the above

Correct Answer : B
Explanation :

1. Massive Open Online Courses (MOOC) are changing the world of education by providing free online courses.

2. MOOC is a web-based free distance learning program that ensures the participation of students from geographically remote areas in the field of education.

3. It offers free online courses for higher education, executive education and employee development.


Q :  

Which of the following is not the same as the other three?

(A) MAC address

(B) Hardware address

(C) Physical address

(D) IP address

Correct Answer : D
Explanation :

1. Of all these options, IP addresses are the most important.

2. IP address (Internet Protocol address) is a digital address used to identify a computer or device on the Internet or any other network.

3. IP address is a set of four numbers. It is in this format 191.150.1.38. Is visible in. The set of numbers for an IP address ranges from 0 to 255. That means the IP address ranges from 0.0.0.0 to 255.255.255.255.


Q :  

A new laptop has been designed that weighs less, is smaller and uses less power than previous laptop models. Which of the following techniques has been used to accomplish this?

(A) Universal Serial Bus Mouse

(B) Faster random-access memory

(C) Blu-Ray Draw Eve

(D) Solid state hard drive

Correct Answer : D
Explanation :

A new laptop has been designed that weighs less, is smaller and uses less power than previous laptop models. Solid-state hard drive technology has been used to accomplish this.


Q :  

To delete a sentence from a document, you would use the following?

(A) Highlight and copy

(B) Cut and paste

(C) Copy and paste

(D) Highlight and delete

Correct Answer : D
Explanation :

To delete a sentence from a document, you would use highlight and delete.


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