Give an example of a schedule that is serializable but not strict.
What will be an ideal response?
w1(x) r2(x) w2(z ) r1(y)
T1 is serializable before T2, but T2 read what T1 wrote before T1 committed. If T2
were to commit and then T1 were to abort, the schedule would not be recoverable.
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Describe and contrast the concepts of aggregation and composition and provide an example of each.
What will be an ideal response?
Case-Based Critical Thinking QuestionsCase 6-2Leon recently started to use CSS positioning properties to position his Web page elements and has been very frustrated. He asked his cousin James to give him some examples and general information that will help him better understand what to do.Which of the following is NOT a true statement James can make to Leon?
A. The left property with a positive value positions an element a certain distance from the left edge of the screen. B. The top property with a positive value positions an element a certain distance from the top edge of the screen. C. The bottom property with a negative value will move an element down the screen. D. The right property with a negative value will move an element to the left.
The percent loaded is calculated and assigned to the percent_txt ____ text block.
A. dynamic B. static C. preloader D. property
A ________ is a serious crime and generally carries penalties of 1 year or more in prison
Fill in the blank(s) with the appropriate word(s).