Data and Database Administration The transaction log includes which of the following? The before-image of a record The essential data of the record The before and after-image of a record The after-image of a record The before-image of a record The essential data of the record The before and after-image of a record The after-image of a record ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration A disaster recovery plan does not need to include the shipment of database backups to other sites. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Performance analysis and tuning is which of the following? Undertaken one time at the time of the implementation of a new application Undertaken one time at the time of a DBMS installation Undertaken as an ongoing part of the backup of a database Undertaken as an ongoing part of managing a database Undertaken one time at the time of the implementation of a new application Undertaken one time at the time of a DBMS installation Undertaken as an ongoing part of the backup of a database Undertaken as an ongoing part of managing a database ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Queries that do full table scans should be avoided. False True False True 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 multiuser environment To ensure data integrity while reading data occurs 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
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