List at least three differences between wildcard metacharacters and regular expressions.
What will be an ideal response?
1. Wildcard metacharacters are interpreted by the shell, whereas regular expressions are interpreted by a text tool program.2. Wildcard metacharacters match characters in filenames (or directory names) on a Linux filesystem, whereas regular expressions match characters within text files on a Linux filesystem.3. Wildcard metacharacters typically have different definitions than regular expression metacharacters.4. More regular expression metacharacters are available than wildcard metacharacters.
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Which of the following statements is false?
a. Most operating systems support timeslicing, which enables threads of equal priority to share a processor. b. Without timeslicing, each thread in a set of equal-priority threads runs to completion before other threads of equal priority get a chance to execute. c. With timeslicing, even if a thread has not finished executing when its quantum expires, the processor is taken away from the thread and given to the next thread of equal priority, if one is available. d. An operating system’s thread scheduler determines which thread runs next.
How does the merge sort algorithm split an array of elements?
a. It uses the size of the array to divide the array into two smaller arrays b. It uses a pivot element c. It splits an array in an arbitrary fashion d. It uses the average of the elements to compute the midpoint
What are the two types of community strings?
What will be an ideal response?
Traditional code was written in _____.
A. event-driven languages B. procedural languages C. fourth-generation languages D. object-oriented programming languages