Two phase protocol in a database management system is: – McqOptions

MCQOPTIONS

1.	Two phase protocol in a database management system is:
A.	a concurrency mechanism that is not deadlock free
B.	a recovery protocol used for restoring a database after a crash
C.	Any update to the system log done in 2-phases
D.	not effective in Database
Answer» B. a recovery protocol used for restoring a database after a crash

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