Q. A transaction commits as soon as its commit log record is written to stable storage at the primary and the backup site.This is

View solution

Q. A transaction commits as soon as its commit log record is written to stable storage at the primary site. This is

View solution

Q. A _______________ configuration can make takeover by the backup site almost instantaneous.

View solution

Q. The time to process the remote backup can be reduced by

View solution

Q. The simplest way of transferring control is for the old primary to receive __________ from the old backup site.

View solution

Q. When the __________ the backup site takes over processing and becomes the primary.

View solution

Q. The backup is taken by

View solution

Q. Remote backup system must be _________ with the primary site.

View solution

Q. The remote backup site is sometimes also called the

View solution

Q. Which lock should be obtained to prevent a concurrent transaction from executing a conflicting read, insert or delete operation on the same key value.

View solution

Q. ______________ rolls back all transactions that were incomplete at the time of crash.

View solution

Q. __________ starts from a position determined during analysis, and performs a redo, repeating history, to bring the database to a state it was in before the crash.

View solution

Q. ___________ determines which transactions to undo,which pages were dirty at the time of the crash, and the LSN from which the redo pass should start.

View solution

Q. The __________________ contains a list of pages that have been updated in the database buffer.

View solution

Q. There are special redo-only log records generated during transaction rollback, called _________ in ARIES.

View solution

Q. Whenever an update operation occurs on a page, the operation stores the LSN of its log record in the _______ field of the page.

View solution

Q. __________ scheme that records only information about dirty pages and associated information and does not even require of writing dirty pages to disk.

View solution

Q. ______________ is used to minimize unnecessary redos during recovery.

View solution

Q. ARIES supports ___________ operations, which are physical in that the affected page is physically identified, but can be logical within the page.

View solution

Q. ARIES uses a ___________ to identify log records, and stores it in database pages.

View solution