The greatest threat to business security is often internal rather than external.

Data and Database Administration
The greatest threat to business security is often internal rather than external.

False

True

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Data and Database Administration
Which of the following could cause data to be unavailable?

The database server

Data becoming lost or inaccurate

All of these

Planned database maintenance activities

The database server

Data becoming lost or inaccurate

All of these

Planned database maintenance activities

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Data and Database Administration
With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.

True

False

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Data and Database Administration
Which of the following is the preferred way to recover a database after a system failure?

Rollback

Reprocess transactions

Switch to duplicate database

Rollforward

Rollback

Reprocess transactions

Switch to duplicate database

Rollforward

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Data and Database Administration
Concurrency control is important for which of the following reasons?

To ensure data integrity when updates occur to the database in a multiuser environment

To ensure data integrity while reading data occurs to the database in a single-user environment

To ensure data integrity when updates occur to the database in a single-user environment

To ensure data integrity while reading data occurs to the database in a multiuser environment

To ensure data integrity when updates occur to the database in a multiuser environment

To ensure data integrity while reading data occurs to the database in a single-user environment

To ensure data integrity when updates occur to the database in a single-user environment

To ensure data integrity while reading data occurs to the database in a multiuser environment

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

False

True

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Data and Database Administration

Data and Database Administration The greatest threat to business security is often internal rather than external.

Data and Database Administration Which of the following could cause data to be unavailable?

Data and Database Administration With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.

Data and Database Administration Which of the following is the preferred way to recover a database after a system failure?

Data and Database Administration Concurrency control is important for which of the following reasons?

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

Data and Database Administration
The greatest threat to business security is often internal rather than external.

Data and Database Administration
Which of the following could cause data to be unavailable?

Data and Database Administration
With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.

Data and Database Administration
Which of the following is the preferred way to recover a database after a system failure?

Data and Database Administration
Concurrency control is important for which of the following reasons?

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