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Computer Knowledge Test 68
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Computer Knowledge Test 68
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  • Question 1/10
    1 / -0

    ______ provides total solutions to reduce data redundancy, inconsistency, dependence and unauthorized access of data

    Solutions

    A database management system (DBMS) is system software for creating and managing databases. The DBMS provides users and programmers with a systematic way to create, retrieve, update and manage data.

     

  • Question 2/10
    1 / -0

    In a sequence of events that take place in an instruction cycle, the first cycle is called ____.

    Solutions

    An instruction cycle (sometimes called fetch-decode-execute cycle) is the basic operation cycle of a computer.

    Note: It is the process by which a computer retrieves a program instruction from its memory, determines what actions the instruction requires, and carries out those actions.

     

  • Question 3/10
    1 / -0

    Which of the following is not a type of database?

    Solutions

    One way to classify different types of databases is by their “data model”. A data model describes the structure of data & how it accessed on the basis of data model, databases can be hierarchical, network or relational databases.

     

  • Question 4/10
    1 / -0

    Normalization is a process of restructuring a relation to______.

    Solutions

    Normalization is the process of restructuring the logical data model of a database to eliminate redundancy, organize data efficiently and reduce repeating data and to reduce the potential for anomalies during data operations.

     

  • Question 5/10
    1 / -0

    ______ holds actual data in the database?

    Solutions

    Table is a basic structure to hold actual data in a relational database.

     

  • Question 6/10
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    What is the language used by most of the DBMS’s for helping their users to access data?

    Solutions

    A database query language allow user to interactively interrogate the database ,analyze in data and update it according to the users privileged on data.

     

  • Question 7/10
    1 / -0

    External database is ___.

    Solutions

    An external database is composed of an external collection using DBMS Package.

     

  • Question 8/10
    1 / -0

    MySQL is_____.

    Solutions

    MySQLis a relational database management system (RDBMS). It was the world's second most widely used RDBMS and the most widely used open-source RDBMS.

     

  • Question 9/10
    1 / -0

    In an E-R diagram double lines indicate____.

    Solutions

    Total participation constraints require the participation of every entity the relationship , also called existence dependency.

     

  • Question 10/10
    1 / -0

    What does an electronic spreadsheet consists of?

    Solutions

    An electronic spreadsheet is a computer application that displays and organizes data. Each data is stored in a cell of a worksheet and can be manipulated using formulas to calculate or change the data in other cells.

     

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