Database Transaction Processing Quiz

What does the acronym CRUD stand for in the context of relational databases?

• Create, Read, Update, Delete

• Copy, Remove, Update, Destroy

• Change, Retrieve, Update, Discard

• Construct, Read, Upgrade, Dismiss

What does the 'atomicity' property of a database transaction ensure?

• Once a change has been successfully made to a database, it must not be lost due to a system failure

• A transaction must not be interrupted by another transaction

• A change in the database must retain the overall state of the database

• A change to a database is either completely performed or not at all

What is the purpose of the 'consistency' property in database transaction processing?

• A change in the database must retain the overall state of the database

• Once a change has been successfully made to a database, it must not be lost due to a system failure

• A change to a database is either completely performed or not at all

• A transaction must not be interrupted by another transaction

How does a DBMS enforce isolation in database transaction processing?

• By retaining the overall state of the database after a change

• By implementing a system of record locking

• By making sure the DBMS writes the effects of a transaction immediately back to permanent secondary storage

• By ensuring that a change to a database is either completely performed or not at all

What is the significance of the 'durability' property in database transaction processing?

• Once a change has been successfully made to a database, it must not be lost due to a system failure

• A transaction must not be interrupted by another transaction

• A change in the database must retain the overall state of the database

• A change to a database is either completely performed or not at all

What does the acronym ACID stand for in the context of database transaction processing?

• Atomicity, Consistency, Isolation, Durability

• Addition, Comparison, Integration, Deletion

• Analysis, Compilation, Inference, Documentation

• Association, Configuration, Implementation, Deactivation

What is the primary purpose of the 'isolation' property in database transaction processing?

• A transaction must not be interrupted by another transaction

• Once a change has been successfully made to a database, it must not be lost due to a system failure

• A change in the database must retain the overall state of the database

• A change to a database is either completely performed or not at all

How does the 'atomicity' property of a database transaction relate to the concept of an 'atom'?

• It means a transaction must not be interrupted by another transaction

• It ensures that a change in the database must retain the overall state of the database

• It ensures that once a change has been successfully made to a database, it must not be lost due to a system failure

• It refers to the fact that a change to a database is either completely performed or not at all, similar to how an atom was once thought to be the smallest indivisible particle

What is the role of 'record locking' in enforcing the 'isolation' property of a database transaction?

• It ensures that a change to a database is either completely performed or not at all

• It locks the records that are currently being affected by the transaction, placing them in a read-only or invisible state

• It retains the overall state of the database after a change

• It makes sure the DBMS writes the effects of a transaction immediately back to permanent secondary storage

What are the four primary considerations regarding transaction processing in database management systems?

• Atomicity, Consistency, Isolation, Durability

• Create, Read, Update, Delete

• Change, Retrieve, Update, Discard

• Insert, Create, Select, Update, Delete