Computer GK Practice Question and Answer

Q:

What type of software is Raj e-Wallet?

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  • 1
    Document Management System
    Correct
    Wrong
  • 2
    Network Management System
    Correct
    Wrong
  • 3
    Software Management System
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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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:

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  • 1
    Flat Panel and Laser
    Correct
    Wrong
  • 2
    Normal and Roof Mounted
    Correct
    Wrong
  • 3
    Mesh Model and Curved
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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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-

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  • 1
    save file
    Correct
    Wrong
  • 2
    Controlling the hardware and software part
    Correct
    Wrong
  • 3
    Organizing all the files and folders
    Correct
    Wrong
  • 4
    both (b) and (c)
    Correct
    Wrong
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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?

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  • 1
    Unix
    Correct
    Wrong
  • 2
    DOS
    Correct
    Wrong
  • 3
    Linux
    Correct
    Wrong
  • 4
    HP
    Correct
    Wrong
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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?

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  • 1
    Twisted Cable
    Correct
    Wrong
  • 2
    Co-Axial Cable
    Correct
    Wrong
  • 3
    Optical Fiber
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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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 _______.

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  • 1
    Road Aaj Disk
    Correct
    Wrong
  • 2
    Write, erase, re-write disc
    Correct
    Wrong
  • 3
    Semi-conductor disc
    Correct
    Wrong
  • 4
    Write Once Road Many (WORM) Disk
    Correct
    Wrong
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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?

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  • 1
    b2b
    Correct
    Wrong
  • 2
    b2c
    Correct
    Wrong
  • 3
    g2b
    Correct
    Wrong
  • 4
    g2c
    Correct
    Wrong
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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.

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  • 1
    network database
    Correct
    Wrong
  • 2
    relational database
    Correct
    Wrong
  • 3
    distributed database
    Correct
    Wrong
  • 4
    hierarchical database
    Correct
    Wrong
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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.


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