A shared lock allows which of the following types of transactions to occur?
A shared lock allows which of the following types of transactions to occur?
Concurrency control is important for which of the following reasons?
Concurrency control is important for which of the following reasons?
Which of the following is true concerning open-source DBMS?
Which of the following is true concerning open-source DBMS?
The restore/rerun technique involves reprocessing the day's transactions up to the point of failure.
The restore/rerun technique involves reprocessing the day's transactions up to the point of failure.
The transaction log includes which of the following?
The transaction log includes which of the following?
Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally?
Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally?
Which of the following is the preferred way to recover a database after a system failure?
Which of the following is the preferred way to recover a database after a system failure?
A disaster recovery plan does not need to include the shipment of database backups to other sites.
A disaster recovery plan does not need to include the shipment of database backups to other sites.
Information repositories are replacing data dictionaries in many organizations.
Information repositories are replacing data dictionaries in many organizations.
Performance analysis and tuning is which of the following?
Performance analysis and tuning is which of the following?
Locking may cause which of the following problems?
Locking may cause which of the following problems?
Queries that do full table scans should be avoided.
Queries that do full table scans should be avoided.
Which of the following could cause data to be unavailable?
Which of the following could cause data to be unavailable?
Failure to control confidentiality may lead to loss of competitiveness.
Failure to control confidentiality may lead to loss of competitiveness.
A data warehouse administrator is concerned with which of the following?
A data warehouse administrator is concerned with which of the following?
Databases are not the property of a single function or individual within the organization.
Databases are not the property of a single function or individual within the organization.
The greatest threat to business security is often internal rather than external.
The greatest threat to business security is often internal rather than external.
Backward recovery is which of the following?
Backward recovery is which of the following?
Incorrect data is easy to detect.
Incorrect data is easy to detect.
A traditional data administrator performs which of the following roles?
A traditional data administrator performs which of the following roles?
To build a data warehouse and develop business intelligence applications, it is important that an organization build and maintain a comprehensive repository.
To build a data warehouse and develop business intelligence applications, it is important that an organization build and maintain a comprehensive repository.
Mirrored databases are almost always provided in high-availability systems.
Mirrored databases are almost always provided in high-availability systems.
If both data and database administration exist in an organization, the database administrator is responsible for which of the following?
If both data and database administration exist in an organization, the database administrator is responsible for which of the following?
A transaction log shows before and after images of records that have been modified by transactions.
A transaction log shows before and after images of records that have been modified by transactions.
Which of the following is part of an administrative policy to secure a database?
Which of the following is part of an administrative policy to secure a database?
With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.
With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.
Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally.
Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally.
Authorization tables contain highly sensitive data and should be protected by stringent security rules.
Authorization tables contain highly sensitive data and should be protected by stringent security rules.
Data modeling and database design are key responsibilities of data and data base administration.
Data modeling and database design are key responsibilities of data and data base administration.
Poor data administration can lead to which of the following?
Poor data administration can lead to which of the following?
