How can you protect critical code?
What will be an ideal response?
You can surround critical code with calls to the signal () system call to have the process ignore
signals and then re-enable signals after the critical code section has been executed.
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A mobile device can only be synchronized to one desktop
Indicate whether the statement is true or false
Which method1 will be executed when the following statements are executed?
(code} ClassA item1 = new ClassB(); item1.method1(); ``` ``` Given the following code: Line 1 public class ClassA Line 2 { Line 3 public ClassA() {} Line 4 public void method1(int a){} Line 5 } Line 6 public class ClassB extends ClassA Line 7 { Line 8 public ClassB(){} Line 9 public void method1(){} Line 10 } Line 11 public class ClassC extends ClassB Line 12 { Line 13 public ClassC(){} Line 14 public void method1(){} Line 15 } ``` a. method1 on Line 4 b. method1 on Line 9 c. method1 on Line 14 d. This is an error and will cause the program to crash.