Windows has failed to start up normally. What should you do?
What will be an ideal response?
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A pair of (partial) database operations, p and q, are said to forward-commute if, in every database state in which both p and q are defined, the sequences p, q and q, p are both defined and, in both sequences, p and q return the same values and the final database state is the same.
a. Describe howforward commutativity can be used in the design of a deferred-update pessimistic concurrency control. b. Give a conflict table for such a control for the account object described in Figure 20.18.
Joint reviews are conducted in accordance to which section of the ISO 12207 standard?
A. 7.2.6 B. 7.3.6 C. 7.1.6 D. 7.4.6
Which of the following is a reason that transaction logs must be backed up frequently?
A. so you don't have to spend time backing up data files B. frequent backups increase the likelihood of a corrupt active transaction log C. when the log is backed up, it is truncated D. the tail of the log increases each time the log is backed up
________ are responsible for developing and writing programs
Fill in the blank(s) with correct word