Computer Knowledge Practice Question and Answer
8 Q: What type of software is Raj e-Wallet?
1597 064b9166d88d5e4f52ddf9ed1
64b9166d88d5e4f52ddf9ed1- 1Document Management Systemtrue
- 2Network Management Systemfalse
- 3Software Management Systemfalse
- 4None of the abovefalse
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Answer : 1. "Document Management System"
Explanation :
1. Rajasthan Government has started the online service of “Raj e-Vault”.
2. The Rajasthan Government has launched a digital document manager in the form of an online portal “Raj e-Vault”
3. Once you have created your e-vault, all the documents which are related to the government.
4. Visit the official website of Raj e-Vault using your Aadhaar ID; An OTP will be sent to your registered mobile number. Enter the OTP and start uploading your documents.
Q: What types of charts can be created using Microsoft Excel 2010?
1596 061c4656b526f66437dfd8c3d
61c4656b526f66437dfd8c3d- 1Line chart and Pie chart onlyfalse
- 2Line graph onlyfalse
- 3Bar chart, Line graph and Pie charttrue
- 4Bar chart and line graph onlyfalse
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Answer : 3. "Bar chart, Line graph and Pie chart"
Q: Joystick is mainly used for ________.
1594 064a5666e8ecb104cc626605c
64a5666e8ecb104cc626605c- 1to control the sound on the screenfalse
- 2Computer gamingtrue
- 3Text Enterfalse
- 4print textfalse
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Answer : 2. "Computer gaming"
Explanation :
1. Joystick is mainly used for computer gaming.
2. What is Joystick? It is a small device whose primary purpose is to control an appliance. It works as an input device and helps the user navigate in different directions.
3. With the joystick, you can change your device by moving it up, down, left or right. It works according to the input you give and helps you control the device by tilting or rotating it.
Q: Who built the first mechanical calculator?
1593 061389b4e3ee2bf25f518a8bd
61389b4e3ee2bf25f518a8bd- 1John Maukleyfalse
- 2Blaise Pascaltrue
- 3Howard Iconfalse
- 4none of thesefalse
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Answer : 2. "Blaise Pascal"
Q: Following are the types of LCD Panel:
1591 064942b704e0960e05476534b
64942b704e0960e05476534b- 1Flat Panel and Laserfalse
- 2Normal and Roof Mountedtrue
- 3Mesh Model and Curvedfalse
- 4None of thesefalse
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Answer : 2. "Normal and Roof Mounted"
Explanation :
1. LCD panel types include normal and roof-mounted.
2. Liquid Crystal Display flats are thinner and lighter making them more useful and easier for users than CRTs. It consumes less power than CRT.
Q: Which data transport medium has the highest data transfer rate?
1591 064ba711888d5e4f52de3b7da
64ba711888d5e4f52de3b7da- 1Twisted Cablefalse
- 2Co-Axial Cablefalse
- 3Optical Fibertrue
- 4None of thesefalse
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Answer : 3. "Optical Fiber"
Explanation :
1. Optical fibres use total internal reflection to transfer data. The primary condition for total internal reflection is that the signal must travel from an optically denser medium to an optically rarer medium. Secondly, the angle of incidence must be greater than the critical angle.
Q: Types of networks is___
1591 061a89e4d607556472838659c
61a89e4d607556472838659c- 1Local Area Networkfalse
- 2Metropolitan Area Networkfalse
- 3Wide Area Networkfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Q: CPU and memory are located in:
1588 064a52e7365d2524cbf0bc088
64a52e7365d2524cbf0bc088- 1Extension Boardfalse
- 2Motherboardtrue
- 3Storage devicefalse
- 4Output devicefalse
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Answer : 2. "Motherboard"
Explanation :
1. The motherboard acts as a platform to connect all of the computer's components together.
2. It connects the CPU, memory, hard drive, optical drive, video card, sound card, and other ports and expansion cards directly or through cables.
3. It can be considered as the backbone of the computer.
4. The CPU is the brain of the computer, and it is responsible for executing program instructions and processing data. Memory provides short-term storage for computers,
5. It stores program instructions and data that is used by the CPU.

