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Data and Database Administration Questions

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Choose the correct option.

Mirrored databases are almost always provided in high-availability systems


ATRUE

BFALSE

Answer: Option A

Explanation:

Here is no explanation for this answer

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Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally?


ARollback

BRollforward

CSwitch to duplicate database

DReprocess transactions

Answer: Option A

Explanation:

Here is no explanation for this answer

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A traditional data administrator performs which of the following roles?


ATune database performance

BEstablish backup and recovery procedures

CResolve data ownership issues

DProtect the security of the database

Answer: Option C

Explanation:

Here is no explanation for this answer

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A transaction log shows before and after images of records that have been modified by transactions.


ATRUE

BFALSE

Answer: Option B

Explanation:

Here is no explanation for this answer

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Which of the following could cause data to be unavailable?


AData becoming lost or inaccurate

BThe database server

CPlanned database maintenance activities

DAll of the above.

Answer: Option D

Explanation:

Here is no explanation for this answer

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Information repositories are replacing data dictionaries in many organizations.


ATRUE

BFALSE

Answer: Option A

Explanation:

Here is no explanation for this answer

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Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally.


ATRUE

BFALSE

Answer: Option A

Explanation:

Here is no explanation for this answer

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Poor data administration can lead to which of the following?


AA single definition of the same data entity

BFamiliarity with existing data

CMissing data elements

DAll of the above

Answer: Option C

Explanation:

Here is no explanation for this answer

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Failure to control confidentiality may lead to loss of competitiveness.


ATRUE

BFALSE

Answer: Option A

Explanation:

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To build a data warehouse and develop business intelligence applications, it is important that an organization build and maintain a comprehensive repository.


ATRUE

BFALSE

Answer: Option A

Explanation:

Here is no explanation for this answer

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