We have the queuing theory which gives us the in depth knowledge of queuing systems which helps us to predict the queue length and the waiting time at the respective nodes in an network. A group of queuing systems together constitute the queuing network. The queuing theory helps to cope with the demand of various services in an queuing network composed of queuing systems.
Answer: Grids are a set of static horizontal and vertical lines with several intersection points that appear when you enable them on the slide. They can be used to accurately place or position the objects to bring out the visual feel on a slide.
