Students, after completing their university studies, consider the convenience of do a Master, start preparing the oppositions or, on the other hand, start working life.
People who choose a Master think that less effort should be devoted to it than the employee in preparing for an examination. But in that they are wrong. A Master implies goals that must be achieved in a certain time, so the work to be done will always be against the clock. Instead, in the opposition, it will be the student who will organize the time as best suits you, always bearing in mind the approximate date of the announcement of the public offering for which it is prepared.
Under my reflection The Master should be aimed at all those people who prefer to focus on the private labor sector. These studies will make it easier for you to get a job, since your practical preparation will be more valued than that of a student without a Master's degree.
However If the objective is to obtain a position as a civil servant, it may be better to start preparing these tests directly, to be able to dedicate time to take courses that will later be scored as merits, increasing the final grade of our opposition. It must also be borne in mind that in some competitions, the Master scores a lot, so there are those who decide to go for it all and get the Master before competing ...