Answer:
a) Speedup gain is 1.428 times.
b) Speedup gain is 1.81 times.
Explanation:
in order to calculate the speedup again of an application that has a 60 percent parallel component using Anklahls Law is speedup which state that:

Where S is the portion of the application that must be performed serially, and N is the number of processing cores.
(a) For N = 2 processing cores, and a 60%, then S = 40% or 0.4
Thus, the speedup is:

Speedup gain is 1.428 times.
(b) For N = 4 processing cores and a 60%, then S = 40% or 0.4
Thus, the speedup is:

Speedup gain is 1.81 times.
Answer:
The correct answer is letter "A": controlling.
Explanation:
There are four (4) basic management skills: <em>Planning, Controlling, Organizing, </em>and <em>Leading. </em>
Controlling implies reviewing the objectives the firm has established to evaluate the progress. It also involves measuring the resources the firm has available for reaching its goals and verifying if they will be enough to get to the finish line, otherwise, the company should find more efficient forms of allocating resources and funding its operations.
In other words, <em>the controlling skill of management sets the standards of performance within the institution.</em>
2^(32-20) - one for the network number - one for the broadcast address = 4,094