QOS implements which of the following?
A. Guaranteed bandwidth for individual clients
B. Prioritization of data packets
C. Guaranteed Delivery of data packets
D. A way to rate restaurant waiter’s service
Why because when set of all process are in waiting queue then it will schedule the process having high priority and rest of themit Will put in waiting queue.
If you observe all options a,b,c are talking about bandwidth dand data packet those all are comes when 2 or more autonomous system combined or I can say some they are connected with some mecahnism then data communication and flow control and error control comes into picture here the discuss is all about operatiing system it will not have concern about data communication and bandwidth.
So option d is the answer.