Consider a processor, P$,$ that has a $2$GHz clock rate and a CPI of $2.$ What is the performance of P$?$

$4*10^9$

$2*10^9$

$10^9$

$2$

For the processor P in the question above can execute a program in $15$ seconds, what are the number of cycles?

$15*10^9$

$4*10^9$

$30*10^9$

$15*4*10^9$