⟩ Tell me What is Agile Testing?
Testing practice for projects using agile methodologies, treating development as the customer of testing and emphasizing a test-first design paradigm.
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Explain Given11. class PingPong2 {12. synchronized void hit(long n) {13. for(int i = 1; i < 3; i++)14. System.out.print(n + "-" + i + " ");15. }16. }17. public class Tester implements Runnable {18. static PingPong2 pp2 = new PingPong2();19. public static void main(String[] args) {20. new Thread(new Tester()).start();21. new Thread(new Tester()).start();22. }23. public void run() { pp2.hit(Thread.currentThread().getId()); }24. }Which statement is true?A. The output could be 5-1 6-1 6-2 5-2B. The output could be 6-1 6-2 5-1 5-2C. The output could be 6-1 5-2 6-2 5-1D. The output could be 6-1 6-2 5-1 7-1Explain Given
11. public abstract class Shape {
12. private int x;
13. private int y;
14. public abstract void draw();
15. public void setAnchor(int x, int y) {
16. this.x = x;
17. this.y = y;
18. }
19. }
Which two classes use the Shape class correctly? (Choose two.)
A. public class Circle implements Shape {
private int radius;
}
B. public abstract class Circle extends Shape {
private int radius;
}
C. public class Circle extends Shape {
private int radius;
public void draw();
}
D. public abstract class Circle implements Shape { private int radius;
public void draw();
}
E. public class Circle extends Shape {
private int radius;
public void draw() {/* code here */}
F. public abstract class Circle implements Shape { private int radius;
public void draw() { /* code here */ }Explain Given
1. public class Threads2 implements Runnable {
2.
3. public void run() {
4. System.out.println("run.");
5. throw new RuntimeException("Problem");
6. }
7. public static void main(String[] args) {
8. Thread t = new Thread(new Threads2());
9. t.start();
10. System.out.println("End of method.");
11. }
12. }
Which two can be results? (Choose two.)
A. java.lang.RuntimeException Problem
B. run.
java.lang.RuntimeException Problem
C. End of method.
java.lang.RuntimeException Problem
D. End of method.
run.
java.lang.RuntimeException Problem
E. run.
java.lang.RuntimeException Problem
End of method.Suppose A team of programmers is reviewing a proposed API for a new utility class. After some discussion, they realize that they can reduce the number of methods in the API without losing any functionality. If they implement the new design, which two OO principles will they be promoting? A. Looser coupling B. Tighter coupling C. Lower cohesion D. Higher cohesion E. Weaker encapsulation F. Stronger encapsulation
Explain Given
11. abstract class Vehicle { public int speed() { return 0; }
12. class Car extends Vehicle { public int speed() { return 60; }
13. class RaceCar extends Car { public int speed() { return 150; } ...
21. RaceCar racer = new RaceCar();
22. Car car = new RaceCar();
23. Vehicle vehicle = new RaceCar();
24. System.out.println(racer.speed() + ", " + car.speed()
25. + ", " + vehicle.speed());
What is the result?
A. 0, 0, 0
B. 150, 60, 0
C. Compilation fails.
D. 150, 150, 150
E. An exception is thrown at runtime.Explain Given
1. public class Blip {
2. protected int blipvert(int x) { return 0; }
3. }
4. class Vert extends Blip {
5. // insert code here
6. }
Which five methods, inserted independently at line 5, will compile? (Choose five.)
A. public int blipvert(int x) { return 0; }
B. private int blipvert(int x) { return 0; }
C. private int blipvert(long x) { return 0; }
D. protected long blipvert(int x) { return 0; }
E. protected int blipvert(long x) { return 0; }
F. protected long blipvert(long x) { return 0; }
G. protected long blipvert(int x, int y) { return 0; }If sp_sysmon output consistently shows a high number of VoluntaryYields, which configuration parameter could be modified to improve performance?A. user log cache sizeB. time sliceC. identity grab sizeD. stack sizeE. cpu accounting flush interval
Explain What is the maximum number of tables allowed in a join query?A. 50 User tables and 14 work tablesB. 32 User tables and 14 work tablesC. 30 User tables and 12 work tablesD. 16 User tables and 12 work tables
How to reclaim space from a fragmented allpages heap table?A. run reorg commandB. dump and load the databaseC. create and drop a clustered indexD. truncate the least used pages
Explain Which of the following cache or IO tuning methods can reduce the spinlockcontention on a single "hot" table that is already bound to a named cache?A. Create 16K buffer pool in the named cacheB. Change the cache replacement strategy of the named cache to relaxed LRUC. Partition the named cacheD. Increase the named cache size
