Questão 2517919

• Banca: FCC
• Órgão: TRT - 24ª REGIÃO (MS)
• Ano: 2017
• Provas: FCC - 2017 - TRT - 24ª REGIÃO (MS) - Técnico Judiciário - Tecnologia da Informação
• Disciplina: Sistemas Operacionais
• Assuntos: Processos

Consider the following text.

It is the activity of the process manager that handles the removal of the running process from the CPU and the selection of another process on the basis of a particular strategy. It is an essential part of a multiprogramming operating systems. Such operating systems allow more than one process to be loaded into the executable memory at a time and the loaded process shares the CPU using time multiplexing.

The text refers to

• A. job queue.
• B. process scheduling.
• C. two-state process model.
• D. Process Control Block (PCB).
• E. Process Life Cycle.

Gabarito: B

Comentários

• Letra B

  O escalonador de processos (scheduler) é a rotina do SO responsável por implementar os critérios da política de escalonamento, que é o critério que define qual processo será escolhido para fazer uso do processador.

  Essa definição é a que está presente no texto acima.

• b-

  AT first, CPU time was a costly resource, which resulted in slow peripherals. Whenever a program required access to a peripheral, the CPU would have to see to it that the peripheral processed the data before carrying on the processing of other instructions. Multiprogramming was a concept designed to address this, being first implemented on batch operating systems. When a program called for an instruction relying on a peripheral, this program was put away while the next program in the queue started to run. Vurtual memory and VMs brought more reliability and efficiency to multiprogramming, making dedicated use of memory and operating systems to carry out instructions from every single process.