Exam 3: Operating Systems

Which of the following statements is true?

Which of the following would be a concern of the file manager in a multi-user computer system that would not be a concern in a single-user system?

A section of a program that should be executed by at most one process at a time is called a

Which of the following is not an attempt to provide security?

Which of the following is a task that is not performed by the kernel of an operating system?

Which of the following items of information would not be contained in an operating system's process table?

What is meant by the term load balancing in the context of multiprocessor computers? ________________________________________________________________________

Why is a "test-and-set" instruction included in most machine languages for CPUs designed for multitasking environments?

List four resources whose access an operating system should coordinate. A. ___________________________ B. _____________________________ C. ___________________________ D. _____________________________

Which of the following components of an operating system maintains the directory system?

What are privileged instructions?

In contrast to early batch processing techniques,____________________ allows the user to communicate with the computer while the user's application is being executed.In turn,this type of processing requires that the computer's responses to its environment be performed in a timely manner,a requirement known as _______________________ .

The end of a time slice is indicted by the occurrence of a signal called

Fill in the blanks below with the part on the operating system (file manager,memory manager,device drivers,window manager,scheduler,dispatcher)that performs the activity described. A. _______________ Places new entries in the process table B. _______________ Performs the actual communication with I/O units C. _______________ Maintains a record of memory allocations D. _______________ Protects files from unauthorized access

List three popular operating systems. A. ___________________ B. ___________________ C. ___________________

What conditions are necessary for deadlock to occur?

Which of the following is not a means of performing multiple activities at the same time?

Describe how the widespread availability of multi-core processors effects operating systems.

Describe concerns that occur when designing a time-sharing/multitasking operating system that do not occur in the case of a single tasking system.

Explain the difference between application software and system software.