Q. Which of the following allows dirty reads, nonrepeatable reads and phantom reads to occur?

View solution

Q. Which of the following locks the item from access of any type?

View solution

Q. The size of a lock is called:

View solution

Q. A cursor type in which the application sees the data as they were at the time the cursor was opened is called:

View solution

Q.
Locks placed by the DBMS are called ________ .

View solution

Q. If an transaction is performed in a database and committed, the changes are taken to the previous state of transaction by

View solution

Q. When the transaction finishes the final statement the transaction enters into

View solution

Q. Which of the following is an atomic sequence of database actions?

View solution

Q. DBMS periodically suspends all processing and synchronizes its files and journals through the use of

View solution

Q. A race condition occurs when

View solution

Q. Data integrity control

View solution

Q. The type of constraints that specifies the uniqueness of data stored in the database are considered as

View solution

Q. The property of DBMS which ensures the execution of all the operations in transaction or none of the operation is executed is classified as

View solution

Q. The control feature in database management system which ensures the accuracy of data updated by multiple users is classified as

View solution

Q. The property of DBMS which ensures whether the hundreds of applications are executed, each transaction must be executed in isolation is classified as

View solution

Q. If a transaction has obtained a __________ lock, it can read but cannot write on the item

View solution

Q. If a transaction has obtained a ________ lock, it can both read and write on the item

View solution

Q. A transaction can proceed only after the concurrency control manager ________ the lock to the transaction

View solution

Q. If a transaction can be granted a lock on an item immediately in spite of the presence of another mode, then the two modes are said to be ________

View solution

Q. A transaction is made to wait until all ________ locks held on the item are released

View solution