You are evaluating three branch prediction strategies: (1) predict always taken, (2) predict always not taken and (3) use the 2-bit branch predictor. Experimentally, your measurements show that conditional branches account for 20% of all instructions and 70% of all branches are taken. The 2-bit predictor has an accuracy of 70%. Assuming that the penalty of a mis-prediction is 4 cycles and 0 cycles for a correct prediction, compute the average stall cycles per instruction of the three strategies.

Carlos, an algebra teacher, is creating a series of powerpoint presentations to use during class lectures. after writing, formatting, and stylizing the first presentation, he would like to begin writing the next presentation. he plans to insert all-new content, but he wants to have the same formatting and style as in the first one. what would be the most efficient way for carlos to begin creating the new presentation? going under the file tab and opening the first presentation, deleting all content from each page, and adding new content going under the file tab and clicking on new in the left pane, then choosing new from existing going under the design tab and clicking on themes, then selecting the theme that was used for the first template going under the design tab and opening the template that was created for the first presentation