Five recovery techniques are listed below. For each situation described, decide which of the following recovery techniques is most appropriate. • Backward recovery. • Forward recovery (from latest...

Five recovery techniques are listed below. For each situation described, decide which of the following recovery techniques is most appropriate. • Backward recovery. • Forward recovery (from latest checkpoint). • Forward recovery (using backup copy of database). • Reprocessing transactions. • Switch. a. A network failure occurs while a user is entering a transaction. b. A d isk drive fails during regular operations. c. A lightning storm causes a power failure. d. An incorrect amount is entered and posted for a stud ent tuition payment. The error is not discovered for several weeks. e. Data entry clerks have entered transactions for two hours after a full database backup when the database becomes corrupted. It is discovered that the journalizing facility of the databas