DBMS Trivia Quiz Questions

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| By Vivekparashar
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Vivekparashar
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Quizzes Created: 1 | Total Attempts: 1,225
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  • 1/5 Questions

    Which one of the following attribute can be taken as a primary key?

    • Name
    • Street
    • ID
    • Department
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About This Quiz

This trivia quiz is made up of DBMS questions that are specific to help you through your revision. This software is generally used to ease access to data and allows people to update some data too. There are different types of data in use currently, and the quiz below is perfect to see how much you understand them and their uses. Give it a shot!

DBMS Trivia Quiz Questions - Quiz

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  • 2. 

    Database management systems are intended to

    • Eliminate data redundancy

    • Establish relationships among records in different files

    • Manage file access

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    A database management system (DBMS) is designed to eliminate data redundancy by storing data in a centralized location and ensuring that each piece of data is only stored once. It also establishes relationships among records in different files, allowing for efficient data retrieval and analysis. Additionally, a DBMS manages file access by controlling who can access and manipulate the data stored in the database. Therefore, all of the given options are correct as they describe the main purposes and functions of a DBMS.

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  • 3. 

    In SQL, which command is used to select only one copy of each set                                                                                                             of duplicable rows

    • SELECT DISTINCT

    • SELECT UNIQUE

    • SELECT DIFFERENT

    • None of the above

    Correct Answer
    A. SELECT DISTINCT
    Explanation
    The SELECT DISTINCT command is used in SQL to select only one copy of each set of duplicable rows. This means that it will eliminate any duplicate rows in the result set, ensuring that each row is unique. The other options, SELECT UNIQUE and SELECT DIFFERENT, are not valid SQL commands and therefore are not the correct answer.

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  • 4. 

    Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?

    • Super Key 

    • Candidate Key

    • Sub Key

    • Foreign Key

    Correct Answer
    A. Super Key 
    Explanation
    A super key is a set of one or more attributes that can uniquely identify a record in a database. It may contain extra attributes that are not necessary for uniqueness. In other words, a super key is a superset of a candidate key. Therefore, a super key is the correct answer as it satisfies the condition of uniquely identifying a record.

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  • 5. 

    In SQL, which of the following is not a data definition language commands?

    • RENAME

    • REVOKE

    • GRANT

    • UPDATE

    Correct Answer
    A. UPDATE
    Explanation
    UPDATE is not a data definition language (DDL) command in SQL. DDL commands are used to define or modify the structure of the database, such as creating or altering tables, indexes, and constraints. UPDATE is a data manipulation language (DML) command used to modify the data within the tables, not the structure of the database itself.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 26, 2012
    Quiz Created by
    Vivekparashar
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