11. (15 Points) Consider a dual core ( A and B ) caches with a. Snooping Protocol b. Write Invalidate c. Write Back d. Write Allocate e. Variable x in memory with content 13 In a table, show the activity and cache and memory content as: - Core A reads x - Core B writes 26 to x - Core A reads x - Core A writes 3 to x - Core A writes 4 to x - Core B reads x ANSWER: \begin{tabular}{|c|l|l|l|l|} \hline Processor Request & Activity & \begin{tabular}{c} A's Cache \\ \& Status \end{tabular} & \begin{tabular}{c} B's Cache \\ \& Status \end{tabular} & Memory x \\ \hline & & & & \\ \hline Core A reads x & & & & \\ \hline Core B writes 26 to x & & & & \\ \hline Core A read x & & & & \\ \hline Core A writes 3 to x & & & & \\ \hline Core A writes 4 to x & & & & \\ \hline Core B reads x & & & & \\ \hline \end{tabular}