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RRB Main Computer Awareness Test 72
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RRB Main Computer Awareness Test 72
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  • Question 1/5
    1 / -0
    What database key uniquely identifies a record within a table?
    Solutions
    A primary key is a database key uniquely identifies a record within a table.
  • Question 2/5
    1 / -0
    Which of the following places the common data elements in order from smallest to largest?
    Solutions
    Character is in smallest size which is filled in a field, various field make record and record has been put in a form of file. The collection of several files is called database.
  • Question 3/5
    1 / -0
    Oracle is an example of ______ application software.
    Solutions
    A database is a collection of information that is organized so that it can easily be accessed, managed, and updated. Databases can be classified according to types of content,bibliographic, full-text, numeric and images.

    Oracle Database is a multi-model database management system produced and marketed by Oracle Corporation.

  • Question 4/5
    1 / -0
    Which topology are used for Ethernet?
    Solutions
    IEEE 802.3 working group develops standards for Ethernet based LANS.
  • Question 5/5
    1 / -0
    ________defines the structure of a relation which consists of a fixed set of attribute-domain pairs.
    Solutions
    Schema is a set of formulas called integrity constraints imposed on a database. These integrity constraints ensure compatibility between parts of the schema.
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