What is a classpath?
What will be an ideal response?
The classpath tells the Java Virtual Machine where to look for classes that are not in the Java language. In Java class definitions are loaded as they are needed.
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Suppose that transactions T1 and T2 can be decomposed into the subtransactions T1 : T1,1, T1,2 and T2 : T2,1, T2,2 such that each subtransaction individually maintains the consistency constraints of the database. Instead of guaranteeing that all schedules involving T1 and T2 are serializable, suppose that a concurrency control guarantees that all subtransactions are always executed serializably.
a. Will T1 always be serializable with T2? Explain. b. Will integrity constraints be maintained by all possible schedules? c. What possible problems might arise if the concurrency control schedules transactions in this way?
The primary answer is the use of optimistic, pessimistic, and most likely values give an averaging effect with the weighting on most likely. This is generally a good estimating tool for the closest and moderately accurate estimates. The only drawback is all three (opt, pess, and most likely) might not always be available.
What will be an ideal response?
The item marked ____ in the accompanying figure is the frame type that is determined by the user to contain artwork and signifies a change.
A. 2 B. 3 C. 5 D. 7
Which of the following options when selected for an inserted audio file will repeat the audio until the slide is advanced?
A) Rewind after Playing B) Loop until Stopped C) Hide during show D) Play Across Slides