《操作系统教学资料》操作系统复习题-2.docVIP

Chapter 3 – Process Description and Control True / False Questions: T / F – The principal function of the processor is to execute machine instructions residing in main memory.处理器的主要功能是处理驻留在主存中的指令。 ANS: T T / F – A process trace is a listing of the sequence of instructions that execute for that process.进程指令追踪就是这个进程的指令序列的列表。 ANS: T T / F – The principal responsibility of the operating system is to control the execution of processes.操作系统的主要任务是控制进程的执行。 ANS: T T / F – When one process spawns another, the spawning process is referred to as the child process and the spawned process is referred to as the parent process.当一个进程派生出另一进程时，产生进程的进程是子进程，被产生的进程是父进程。 ANS: F (opposite is true) T / F – Round-Robin processing refers to a method of thread prioritization for scheduling.轮转是一种线程优先级调度方法。 ANS: F (not prioritized) T / F – The primary difference between the Two-State Process Model and the Five-State Process Model is that the latter splits the Running state into two new states: Ready and Blocked.两状态处理模型和五状态处理模型主要区别是后者将运行态分割成就绪和阻塞态。 ANS: F (splits the Not Running state) T / F – One solution to the problem of limited main memory space is swapping, which involves moving all or part of a process from main memory to secondary memory. 一种解决主存空间有限的方法是交换，这种交换包括将一个进程的全部或部分从主存转移到辅存。 ANS: T T / F – In order to define the control structures (e.g., tables) that the O/S needs to manage processes and resources, it must have access to configuration data during initialization.为了定义操作系统控制进程和资源所需要的控制结构，操作系统在初始化的时候必须拥有对设备数据的控制权。 ANS: T T / F – The Process Image refers to the binary form of the program code. 进程映像指的是二进制形式的程序码。 ANS: F (refers to process elements: program, data, stack attributes) T / F – The portion of the Process Control Block that consists of the contents of the processor registers is called the Process Control Information.进程控制块中包含处理器寄存器的部分是进程控制信息。 ANS: F (processor state information portion of the PCB contains registers) T