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 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 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 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 while reading data occurs to the database in a single-user environment ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is true concerning open-source DBMS? Is competitive against PC-oriented packages and is not fully SQL compliant Is not competitive against PC-oriented packages and is fully SQL compliant Is free or nearly free database software whose source code is publicly available Is free or nearly free database software whose source code is not publicly available Is competitive against PC-oriented packages and is not fully SQL compliant Is not competitive against PC-oriented packages and is fully SQL compliant Is free or nearly free database software whose source code is publicly available Is free or nearly free database software whose source code is not publicly available ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration The transaction log includes which of the following? 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 The before-image of a record ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Poor data administration can lead to which of the following? All of these A single definition of the same data entity Missing data elements Familiarity with existing data All of these A single definition of the same data entity Missing data elements Familiarity with existing data ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration A shared lock allows which of the following types of transactions to occur? Delete Insert Update Read Delete Insert Update Read ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration The greatest threat to business security is often internal rather than external. False True False True ANSWER DOWNLOAD EXAMIANS APP
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