Computer Knowledge Practice Question and Answer

Q:

While using a database management system, the first thing you have to do is ________.

404 0

  • 1
    Create a database file
    Correct
    Wrong
  • 2
    Activate file editor
    Correct
    Wrong
  • 3
    Load the software into your computer
    Correct
    Wrong
  • 4
    Keep a floppy disk in readiness
    Correct
    Wrong
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Answer : 3. "Load the software into your computer "
Explanation :

While using a database management system, the first thing you have to do is install the software on your computer. Loading the software involves the installation process, which includes copying the necessary files and configuring the system to run the database management software effectively. Once installed, you can then create databases, define data structures, and start working with the DBMS to manage your data.

Q:

Which files are used during the operation of DBMS?

458 0

  • 1
    Query language and utilities
    Correct
    Wrong
  • 2
    Data manipulation language and query language
    Correct
    Wrong
  • 3
    Data dictionary and transaction log
    Correct
    Wrong
  • 4
    Data dictionary and query language
    Correct
    Wrong
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Answer : 3. "Data dictionary and transaction log "
Explanation :

During DBMS operation, essential files include the data dictionary, containing metadata like table structures, and the transaction log, recording all database transactions. The data dictionary guides the DBMS in understanding database organization, while the transaction log ensures data integrity by recording modifications. Both files are crucial for effective database management, enabling accurate querying, data manipulation, and system recovery in case of failures, ensuring the system's reliability and consistency.


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.

526 0

  • 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.


Q:

Data that is copied from an application is stored in the ...... 

617 1

  • 1
    Driver
    Correct
    Wrong
  • 2
    terminal
    Correct
    Wrong
  • 3
    prompt
    Correct
    Wrong
  • 4
    clipboard
    Correct
    Wrong
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Answer : 4. "clipboard "
Explanation :

Data that is copied from an application is stored in the clipboard. The clipboard is a temporary storage area in a computer's memory that holds the data that has been cut or copied, allowing users to paste the data into another location or application. This functionality is commonly used for tasks such as copying text, images, or files from one place and pasting them into another.

Q:

which of the following is an example of a volatile memory. 

642 1

  • 1
    cd-rom
    Correct
    Wrong
  • 2
    RAM
    Correct
    Wrong
  • 3
    Rome
    Correct
    Wrong
  • 4
    hard disk
    Correct
    Wrong
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Answer : 2. "RAM "
Explanation :

RAM (Random Access Memory) is an example of volatile memory. Volatile memory is a type of computer memory that requires power to maintain the stored information. When the computer is powered off or restarted, the data stored in RAM is erased. This is in contrast to non-volatile memory like hard drives or SSDs, where data is retained even when the power is turned off. Volatile memory, such as RAM, provides fast access to data for the computer's processor but does not retain data when the system is powered down.


Q:

When is the World Computer Literacy Day observed every year? 

849 1

  • 1
    08 September
    Correct
    Wrong
  • 2
    11 september
    Correct
    Wrong
  • 3
    03 November
    Correct
    Wrong
  • 4
    02 December
    Correct
    Wrong
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Answer : 4. "02 December "
Explanation :

World Computer Literacy Day is observed on December 2nd every year. It is a global observance aimed at promoting awareness and understanding of computer literacy and digital skills among people, especially those in developing countries, to bridge the digital divide and empower individuals with essential computer knowledge.

Q:

By using which tab can you add page numbers in an MS-Word 2019 document? 

634 1

  • 1
    edit
    Correct
    Wrong
  • 2
    format
    Correct
    Wrong
  • 3
    insert
    Correct
    Wrong
  • 4
    Home
    Correct
    Wrong
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Answer : 3. "insert "
Explanation :

In Microsoft Word 2019, you can add page numbers to your document by using the "Insert" tab. The "Insert" tab contains various options, including the "Page Number" option, which allows you to insert page numbers at different locations in your document.

Q:

The CPU, motherboard and RAM are ........ components of a computer hardware system. 

664 1

  • 1
    input device
    Correct
    Wrong
  • 2
    secondary storage device
    Correct
    Wrong
  • 3
    output device
    Correct
    Wrong
  • 4
    internal
    Correct
    Wrong
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Answer : 4. "internal "
Explanation :

The CPU (Central Processing Unit), motherboard, and RAM (Random Access Memory) are internal components of a computer hardware system. These components are essential for the computer to function and are located inside the computer's casing.

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