Describe a situation in which a user's complete denial of a service (i.e., the user gets no response from the computer) is a significant problem. Describe another case in which a 10% denial of service...

Describe a situation in which a user's complete denial of a service (i.e., the user gets no response from the computer) is a significant problem. Describe another case in which a 10% denial of service (i.e., the user's calculation proceeds at a 10% slower pace than normal) is a major problem. Is it possible that unauthorised access to a computer system will result in a ten percent service denial for legitimate users? How would you go about accomplishing that if that's the case?