A botnet is a ____.
A. network of robots that control an assembly line at a factory
B. network of servers that exchange traffic data
C. ?network of devices that are used for managing security
D. ?network of computers that send out access requests to servers repeatedly
Answer: D
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Analyze the following code:
``` import java.util.Scanner; public class Test { public static void main(String[] args) { int sum = 0; for (int i = 0; i < 100000; i++) { Scanner input = new Scanner(System.in); sum += input.nextInt(); } } } ``` a. The program does not compile because the Scanner input = new Scanner(System.in); statement is inside the loop. b. The program compiles, but does not run because the Scanner input = new Scanner(System.in); statement is inside the loop. c. The program compiles and runs, but it is not efficient and unnecessary to execute the Scanner input = new Scanner(System.in); statement inside the loop. You should move the statement before the loop. d. The program compiles, but does not run because there is not prompting message for entering the input.
File History is a type of ________ utility
A) backup B) drive imaging C) disk-checking D) troubleshooting
Which of the following, from outermost to innermost, are components of the box model?
a. margin, border, padding, content b. content, padding, border, margin c. content, margin, padding, border d. margin, padding, border, content
An instance variable or object field is also called a(n) ____ of the object.
A. instance B. method C. property D. initial value