Questões de Raciocínio Lógico · Cebraspe

Raciocínio LógicoOperações com conjuntosCebraspe 2013

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Questão de Raciocínio Lógico

Investigando o sistema computacional de uma empresa, peritos constataram que a probabilidade de rackers terem invadido o sistema devido a erro humano no sistema era superior a 0,6, isto é, se X for o evento “erro humano” e se Y for o evento “rackers invadiram o sistema”, então P(X1Y) > 0,6.

Com base nessa situação, julgue os itens que se seguem. o conjunto C–AcB tem menos de 18 elementos. 45 o conjunto AcB tem mais de 38 elementos. 1 Without an operating system, a computer is only a box of electronic parts. It takes an operating system to turn a computer into a functioning machine for work or play. The 4 operating system is the software that starts the basic functions of a computer, displays texts on the computer’s monitor, accesses the Internet, and runs applications — it transforms the 7 computer into a powerful tool. There are many kinds of operating systems, but only a few have really captured a wide audience. Some popular operating systems are used on 10 computers that fit on your desktop. Others are used on more powerful computers called servers that are accessed by multiple users through a computer network. Some, like UNIX/Linux, are 13 used on both desktop and server computers. And some are embedded in a variety of electronic devices from cell phones to photo kiosks. M. J. Palmer and M. Walters. Guide to operating systems. Boston: Cengage Learning, 2012, p. 2 (adapted).

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