Answer:
Sandboxing.
Explanation:
SDLC or software development life cycle is a systematic approach to software development. It marks the birth and death of an application.
The application development starts from the research of the properties of the application to the design and development or implementation of the application.
After the implementation of the software, it is tested, comparing the design and the codes in the development process. The sandboxing testing process helps to isolate and test new lines of code added during the testing phase.
Automation. ... It involves taking a machine or software that was taught to do simple repetitive tasks (traditional automation) and teaching it to intuitively adapt or correct its performance based on changing conditions, at speed and scale.
If you observe closely, you may see that these stars are shown only against some slides and not all of them.
The stars are just an indication that the particular slide has custom animation. That was you can quickly see at a glance if a slide has content that is animated.
The same star symbol is also shown when the slide itself has any slide transition set.
All of the answers above are correct