Computer GK Practice Question and Answer
8 Q: What type of software is Raj e-Wallet?
1511 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: Following are the types of LCD Panel:
1509 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: The main function of the operating system is-
1506 063ecca46e6cd351b75fdaf60
63ecca46e6cd351b75fdaf60- 1save filefalse
- 2Controlling the hardware and software partfalse
- 3Organizing all the files and foldersfalse
- 4both (b) and (c)true
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Answer : 4. "both (b) and (c)"
Explanation :
The main function of the operating system is to control both the hardware and software components of a computer. It acts as an intermediary, managing hardware resources and allowing software applications to run and interact with the computer's hardware. While organizing files and folders is a task performed by the operating system, its primary role is to facilitate communication between software and hardware, ensuring the computer functions properly.
Q: Which one of the following is not an operating system?
1504 064a51284dc607a4d2b27b1ac
64a51284dc607a4d2b27b1ac- 1Unixfalse
- 2DOSfalse
- 3Linuxfalse
- 4HPtrue
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Answer : 4. "HP"
Explanation :
1. An operating system is not HP.
2. The full name of HP is Hewlett-Packard. It is an American multinational information technology company that manufactures and sells computer hardware, software, and services.
Q: Which data transport medium has the highest data transfer rate?
1502 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: Compact Disc Recordable (CDR) is a _______.
1498 064a541c78c254a4ceace09e8
64a541c78c254a4ceace09e8- 1Road Aaj Diskfalse
- 2Write, erase, re-write discfalse
- 3Semi-conductor discfalse
- 4Write Once Road Many (WORM) Disktrue
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Answer : 4. "Write Once Road Many (WORM) Disk"
Explanation :
1. Compact Disc Recordable (CDR) is a write-once-read-many (WORM) disc.
2. CD-R stands for Compact Disc Recordable and is a digital optical disc storage format.
3. A CD-R disc is a compact disc that can be written once and read multiple times freely.
Q: What type of e commerce is Amazon?
1488 063e9f81ae6cd351b75f689df
63e9f81ae6cd351b75f689df- 1b2bfalse
- 2b2ctrue
- 3g2bfalse
- 4g2cfalse
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Answer : 2. "b2c"
Q: In a _______, a parent record type can be associated with one or more "child" record types, but a child record type can have only one parent.
1483 063e9ed089353301b5cd70ce7
63e9ed089353301b5cd70ce7- 1network databasefalse
- 2relational databasefalse
- 3distributed databasefalse
- 4hierarchical databasetrue
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Answer : 4. "hierarchical database"
Explanation :
In a hierarchical database model, a parent record type can be associated with one or more child record types, but a child record type can have only one parent. This hierarchical structure is represented as a tree-like schema, where each parent record can have multiple child records, but each child record has only one parent. This model is useful for representing data with hierarchical relationships, such as organizational structures or file systems.

