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Computer science Practice Questions & Answers

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Data administrators are responsible for:

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Data administrators are responsible for:

A).  physical database design.

B).  managing technical issues in the database environment.

C).  overall management of data resources in an organization.

D).  writing application programs.

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A shared database should:

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A shared database should:

A).  be accurate and available.

B).  provide for backup and recovery.

C).  be secure.

D).  All of the above.

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An enterprise data model is:

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An enterprise data model is:

A).  a graphical model that shows the high-level entities for an organization.

B).  a graphical model that shows all entities for an organization.

C).  a non-graphical model that shows the high-level entities for an organization.

D).  a non-graphical model that shows the all entities for an organization.

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A database application can perform which of the following activities?

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A database application can perform which of the following activities?

A).  Add records

B).  Read records

C).  Update records

D).  All of the above.

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The microdata model consists of groups of name-value pairs known as

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The microdata model consists of groups of name-value pairs known as

A).  Item

B).  Property

C).  Value

D).  URL