Which of the following is used for undo operations alone ?

Physical logging and Physical log records

Explore topic-wise MCQs in Operating System.

This section includes 60 Mcqs, each offering curated multiple-choice questions to sharpen your Operating System knowledge and support exam preparation. Choose a topic below to get started.

Explore topic-wise MCQs in Operating System.

When a deadlock is detected the recovery is normally accomplished by :

Which of the following is used for undo operations alone ?

Checkpoints are a part of

The assumption that the hardware errors bring the system to a halt is called as ________

If the database modifications occur while the transaction is still active, the transaction is said to use the __________ modification technique

The log is a sequence of ___________, recording all the update activities in the database.

A special redo-only log record is written to the log, where V1 is the value being restored to data item Xj during the rollback. These log records are sometimes called

In the __________ phase, the system replays updates of all transactions by scanning the log forward from the last checkpoint.

The actions which are played in the order while recording it is called ______________ history.

The current copy of the database is identified by a pointer, called _____________, which is stored on disk.