Questões de Concursos DATAPREV

Pedro Pedreiro (Chico Buarque)Pedro pedreiro penseiro esperando o trem Manhã parece, carece de esperar também Para o bem de quem tem bem de quem não tem vintém Pedro pedreiro fica assim pensandoAssim pensando o tempo passa e a gente vai ficando pra trás Esperando, esperando, esperando Esperando o sol, esperando o trem Esperando aumento desde o ano passado para o mês que vemPedro pedreiro penseiro esperando o trem Manhã parece, carece de esperar também Para o bem de quem tem bem de quem não tem vintém Pedro pedreiro espera o carnavalE a sorte grande do bilhete pela federal todo mês Esperando, esperando, esperando, esperando o sol Esperando o trem, esperando aumento para o mês que vem Esperando a festa, esperando a sorte E a mulher de Pedro, esperando um filho pra esperar tambémPedro pedreiro penseiro esperando o trem Manhã parece, carece de esperar também Para o bem de quem tem bem de quem não tem vintémPedro pedreiro tá esperando a morte Ou esperando o dia de voltar pro Norte Pedro não sabe, mas talvez no fundo Espere alguma coisa mais linda que o mundo(...) Esperando a festa, esperando a sorte Esperando a morte, esperando o Norte Esperando o dia de esperar ninguém Esperando enfim, nada mais além Da esperança aflita, bendita, infinita do apito de um tremPedro pedreiro pedreiro esperando Pedro pedreiro pedreiro esperando Pedro pedreiro pedreiro esperando o tremQue já vem Que já vem(Disponível em http://letras.mus.br/)

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Self-repairing software tackles malware

     University of Utah computer scientists have developed software that not only detects and eradicates never-before-seen viruses and other malware, but also automatically repairs damage caused by them. The software then prevents the invader from ever infecting the computer
again.
     A3 is a software suite that works with a virtual machine - a virtual computer that emulates the operations of a computer without dedicated hardware. The A3 software is designed to watch over the virtual machines operating system and applications, says Eric Eide, University of Utah research assistant professor of computer science leading the university s A3 team with U computer science associate professor John Regehr. A3 is designed to protect servers or similar business-grade computers that run on the Linux operating system. It also has been demonstrated to protect military applications.
     The new software called A3, or Advanced Adaptive Applications, was co-developed by Massachusetts-based defense contractor, Raytheon BBN. The four-year project was completed in late September.
     There are no plans to adapt A3 for home computers or laptops, but Eide says this could be possible in the future.
     "A3 technologies could find their way into consumer products someday, which would help consumer devices protect themselves against fast-spreading malware or internal corruption of software components. But we havent tried those experiments yet," he says.
     Unlike a normal virus scanner on consumer PCs that compares a catalog of known viruses to something that has infected the computer, A3 can detect new, unknown viruses or malware automatically by sensing that something is occurring in the computer s operation that is not correct. It then can stop the virus, approximate a repair for the damaged software code, and then learn to never let that bug enter the machine gain.
     While the military has an interest in A3 to enhance cybersecurity for its mission-critical systems, A3 also potentially could be used in the consumer space, such as in web services like Amazon. If a virus or attack stops the service, A3 could repair it in minutes without having to take the servers down.

Source: http://www.sciencedaily.com

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