Start with the first exercise and continue till you finish every single exercise without any rest periods in between. When you finished the first round, start again with the first exercise. This is a circuit training which includes multiple exercises which you have to perform for a specific number of sets.
20 X DEAD STOP PUSH UP
50 X JUMPING JACK
20 X SHOULDER TAP PUSH UP
50 X JUMPING JACK
20 X DIAMOND PUSH UP
50 X JUMPING JACK
Repeat 4X