Answer:
ADMINISTRATIVE CONTROL
Explanation:
If a potential employee is required to undergo a drug screening an Administrative Control is what will be conducted on the employee because
Administrative controls are training, procedure, policy that limit or prevent exposure of an individual to hazards. Examples of administrative controls include training, supervision, timing of work. Administrative controls are also changes in work procedures such as written safety policies, rules, supervision which is the reason the employee has to undergo drug screening using Administrative controls.
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.
A process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer.