西安电子科技大学期末考试真题+解析

题目	题型
The chmod command （命令）	单选
The method listed below doesn’t need CPU to participate in the transfer of data block.	单选
Operating System is an extended machine and().	填空
Parallel Systems include Symmetric （对称） multiprocessing and ()	填空
A semaphore （信号量） S is an integer variable that is accessed only through two standard atomic operations:()and ()	填空
Address binding of instructions and data to memory addresses can happen at three different stages, Compile time, Load time and ()	填空
Four Conditions for Deadlock:(), Hold and wait, No preemption and ().	填空
Sector 0 of the disk is called the ().	填空
In Linux, the file metadata （元数据） is stored in().	填空
The security goals include data confidentiality （机密性）， data integrity and ().	填空
What is system call? Use an example to illustrate （举例说明） the steps of system call.	问答
Please describe the diagram （图） of Process State.	问答
What is Monitor? Can you use Monitor to implement a data structure?	问答
What is TLB? What role does it play in memory management?	问答
The difference of programming I/O and interrupt-driven I/O.	问答
The code below is an example program of producer-consumer	填空
Consider the following snapshot of a system :	问答
Disk requests come in to the disk driver for cylinders 10,22,20,2,40,6, and 38, in that order. In all cases, the arm is initially at cylinder 20. A seek takes 6 msec per cylinder moved. How much seek times is needed for	问答
Consider a system where the virtual memory page size is 2K (2048 bytes), and main memory consists of 4 page frames. Now consider a process which requires 8 pages of storage. At some point during its execution, the page table is as shown below:	问答
访管指令所引起的中断属于（）中断。	单选

题目

题型

The chmod command （命令）

单选

The method listed below doesn’t need CPU to participate in the transfer of data block.

单选

Operating System is an extended machine and().

填空

Parallel Systems include Symmetric （对称） multiprocessing and ()

填空

A semaphore （信号量） S is an integer variable that is accessed only through two standard atomic operations:()and ()

填空