Duplication of data at several places is called as _______________.

Related MCQs

• Which is the duplication of computer operations and routine backups to combat any unforeseen problems:
• Centralizing the integrity checking directly under the DBMS ………….. duplication and ensures the consistency and validity of the database.
• Let us consider phone_number ,which can take single or several values . Treating phone_numberas an                    permits instructors to have several phone numbers (including zero) associated with them.
• Let us consider phone_number ,which can take single or several values . Treating phone_numberasan _________ permits instructors to have several phone numbers (including zero) associated with them.
• If a piece of data is stored in two places in the database, then
• If a piece of data is stored in two places in the database, then
• Which of the following stores several gigabytes of data but usually lost when power failure?
• If several concurrent transactions are executed over the same data set and the second transaction updates the database before the first transaction is finished, the ____ property is violated and the database is no longer consistent.
• There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called
• Which refers to a property of computer to run several operation simultaneously and possible as computers await response of each other