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DAT 380 Wk 1 - Practice Knowledge Check

DAT 380 Wk 1 - Practice Knowledge Check PLDZ-12785
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DAT 380 Wk 1 – Practice Knowledge Check

 

The only way to access the data in a database is through the DBMS.

 

 

 

    • True

 

 

    • False

 

 

 

 

Which of the following is true of spreadsheet applications?

 

 

 

    • They enhance the user’s ability to understand the data.

 

 

    • They provide enhanced security and robust data sharing features.

 

 

    • They do not allow manipulation of data once entered.

 

 

    • They are a better alternative to databases.

 

 

 

 

The term _____ refers to an organization of components that define and regulate the collection, storage, management and use of data within a database environment.

 

 

 

    • database system

 

 

    • structured data

 

 

    • management system

 

 

    • transaction

 

 

 

 

A _____ is a collection of related records.

file

column

field

schema

 

 

Even when a good database blueprint is available, an applications programmer’s view of the data should match that of the manager and the end user.

 

 

 

    • True

 

 

    • False

 

 

 

 

A(n) _______ enables a database administrator to describe schema components.

 

 

 

    • data definition language (DDL)

 

 

    • query language

 

 

    • unified modeling language (UML)

 

 

    • extensible markup language (XML)

 

 

 

 

In an SQL-based relational database, rows in different tables are related based on common values in common attributes.

 

 

 

    • True

 

 

    • False

 

 

 

 

VMS/VSAM is an example of the _____.

 

 

 

    • hierarchical model

 

 

    • file system data model

 

 

    • XML data model

 

 

    • relational data model

 

 

 

 

An implementation-ready data model needn’t necessarily contain enforceable rules to guarantee the integrity of the data.

 

 

 

    • True

 

 

    • False

 

 

 

 

The object-oriented data model was developed in the _____.

 

 

 

    • 1980s

 

 

    • 1960s

 

 

    • 1990s

 

 

  • 1970s
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