Data and Database Administration Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally? Rollback Switch to duplicate database Reprocess transactions Rollforward Rollback Switch to duplicate database Reprocess transactions Rollforward ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Locking may cause which of the following problems? All of these Erroneous updates Deadlock Versioning All of these Erroneous updates Deadlock Versioning ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is part of an administrative policy to secure a database? Limiting particular areas within a building to only authorized people Ensure appropriate responses rates are in external maintenance agreements All of these Authentication policies Limiting particular areas within a building to only authorized people Ensure appropriate responses rates are in external maintenance agreements All of these Authentication policies ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is the preferred way to recover a database after a system failure? Reprocess transactions Rollback Switch to duplicate database Rollforward Reprocess transactions Rollback Switch to duplicate database Rollforward ANSWER DOWNLOAD EXAMIANS APP
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 single-user 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 multiuser 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 single-user 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 multiuser environment To ensure data integrity while reading data occurs to the database in a multiuser environment ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration A data warehouse administrator is concerned with which of the following? The time to make a decision but not the typical roles of a database administrator The typical roles of a data administrator and redesigning existing applications The typical roles of a database administrator and redesigning existing applications The time to make a decision and the typical roles of a database administrator The time to make a decision but not the typical roles of a database administrator The typical roles of a data administrator and redesigning existing applications The typical roles of a database administrator and redesigning existing applications The time to make a decision and the typical roles of a database administrator ANSWER DOWNLOAD EXAMIANS APP
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