1. The following figure shows a possible schedule of executing transactions with checkpoints. T1 T2 T4...

 

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1. The following figure shows a possible schedule of executing transactions with checkpoints. T1 T2 T4 T3 T5 Checkpoint time system crash (failure time) Describe briefly the actions (including changes to both disk and log at system crash point) of recovery manger according to the following recovery methods: a. NO-UNDO/REDO b. UNDO/REDO c. NO-UNDO/NO-REDO (A single-user environment) 1. The following figure shows a possible schedule of executing transactions with checkpoints. T1 T2 T4 T3 T5 Checkpoint time system crash (failure time) Describe briefly the actions (including changes to both disk and log at system crash point) of recovery manger according to the following recovery methods: a. NO-UNDO/REDO b. UNDO/REDO c. NO-UNDO/NO-REDO (A single-user environment)

Answer rating: 100% (QA)

a Deferred update method with checkpoint Until the transaction has not reached the commit poi... View the full answer