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problem 1:

Discuss and illustrate out the dissimilar kinds of transaction failures. What do you understand by catastrophic failure?

problem 2:

Discuss and illustrate out the actions which are taken by the read_item and prepare_item operations on the database.

problem 3:

What is the system log employed for? What are the typical types of entries in the system log? What are checkpoints, and why are they significant?

problem 4:

What are transaction commit points, and why are they significant?

problem 5:

How are caching and buffering methods employed by recovery subsystem?

problem 6:

What are the before image (BFIM) and after image (AFIM) of the data item? What is the differentiation between in-place updating and shadowing, with respect to their handling of the BFIM and AFIM?

problem 7:

What do you understand by the term UNDO-type and REDO-type log entries?

problem 8:

Illustrate out the prepare-ahead logging protocol.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M98870

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