The Database Environment - Database MCQ Questions and answers- Technical Aptitude

1

A data warehouse uses:

A) partial operational data. B) historical operational data. C) future operational data. D) health care data.

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Answer & Solution

Answer: Option B

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2

Metadata enables database designers and users to do all of the following except:

A) sample data. B) understand what data exist. C) what the fine distinctions are between similar data items. D) what the data mean.

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Answer & Solution

Answer: Option A

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3

Duplicate data often results in loss of data integrity because:

A) the data formats may be inconsistent. B) data values may not agree. C) Both A & B. D) Neither A & B.

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Answer & Solution

Answer: Option C

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4

Legacy data is which of the following?

A) Data contained in a newly-installed system B) Data rejected during the installation of a new system C) Data contained in a file system D) Data contained by a system used prior to the installation of a new system

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Answer & Solution

Answer: Option D

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5

A database management system (DBMS) is a:

A) hardware system used to create, maintain, and provide controlled access to a database. B) hardware system used to create, maintain, and provide uncontrolled access to a database. C) software system used to create, maintain, and provide controlled access to a database. D) software system used to create, maintain, and provide uncontrolled access to a database.

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Answer & Solution

Answer: Option C

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6

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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Answer & Solution

Answer: Option D

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7

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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Answer & Solution

Answer: Option A

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8

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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Answer & Solution

Answer: Option D

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9

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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Answer & Solution

Answer: Option C

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10

Which of the following types of databases are the most common?

A) Personal B) Workgroup C) Department D) Enterprise

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Answer & Solution

Answer: Option C

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