In the average case of quicksort, the number of key comparisons is ____.
A. O(n)
B. 1.39nlog2n + O(n)
C. 2.39logn + O(n)
D. 1.39nlog2n + O(2n)
Answer: B
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Which of the following statements about Java Class Libraries is false:
a. Java class libraries consist of classes that consist of methods that perform tasks. b. Java class libraries are also known as Java APIs (Application Programming Interfaces). c. An advantage of using Java class libraries is saving the effort of designing, developing and testing new classes. d. Java class libraries are not portable
Which of the following types of variables can only hold a single item of data?
(A) two-dimensional arrays (B) simple variables (C) single-subscripted variables (D) double-subscripted variables
Windows ________ allows anyone who has an appropriate ID to save files online for free
Fill in the blank(s) with correct word
SSL supports firewall-based ____.
A. IP forwarding B. encryption C. VPN D. application proxy