A user reports that their machine seems to be running slower than usual. The user states that the computer has become progressively worse as more applications are installed. Which of the following is the FIRST step the technician should take?
A. Run the CHKDSK utility
B. Run the disk defragmenter utility
C. Increase the capacity on the system volume
D. Convert to a dynamic drive on the system
Answer; B. Run the disk defragmenter utility
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What do you do if you remove a node from a tree in an array-based implementation?
a. assign it to nullPtr b. nothing, leave it as is, just don’t link anything to it c. remove it from the array d. add it to the free list
Consider the following two Java code segments:
``` Segment 1 Segment 2 int i = 0; for (int i = 0; i <= 20; i++) while (i < 20) { { System.out.println(i); i++; } System.out.println(i); } ``` Which of the following statements are true? a. The output from these segments is not the same. b. The scope of the control variable i is different for the two segments. c. Both (a) and (b) are true. d. Neither (a) nor (b) is true.