?Choose the correct verb to agree in number with the subject of the following sentence.
The results of sleep deprivation __________ well documented.
A. ?is
B. ?are
Answer: B
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Which of the following is an example of a disaster?
A) A hard drive crash on a critical server B) A fire that causes you to close your offices for a week C) A hacker taking over your web server and deleting critical files D) All of the above
What other actions should be taken?
What will be an ideal response?
Write a recursive SQL query that returns tuples of the form From,To,Distance, which represent direct or indirect ?ights (i.e., ?ights composed of one or more segments) and the aggregate distance over all segments for each such ?ight. (If there are several ways to reach B from A and the total distance is di?erent in each case, then the output would have several tuples such as A,B,1000,
A,B,1500, etc.) The exact query is: Find al l tuples of the above form provided that the distance is less than 10,000 . Consider the following relational schema:
DirectFlight(From,To,Distance)
Access specified by the public, private or protected keywords, remains in affect ____.
A. Only until the statement that following it is executed. B. Only until the methods in which it is defined is executed. C. Until either the end of the class is reached or a different level of encapsulation is specified. D. None of the above