$1.$ Suppose we know that an application that uses both personal mobile

devices and the Cloud is limited by network performance. For the following

changes, state whether only the throughput improves, both response time

and throughput improve, or neither improves.

a$.$ An extra network channel is added between the PMD and the Cloud,

increasing the total network throughput and reducing the delay to obtain

network access $($since there are now two channels$).$

b$.$ The networking software is improved, thereby reducing the network

communication delay, but not increasing throughput.

c$.$ More memory is added to the computer.

$2.$ Computer C$$s performance is four times as fast as the performance of

computer B$,$ which runs a given application in $28$ seconds. How long will

computer C take to run that application?