Deck 8: Operating System Support

Question 1

The ABI is the boundary between hardware and software.

Answer 1

False

Question 2

Managers are users of domains that must observe the access permissions of the individual sections and / or pages that make up that domain.

Answer 2

False

Question 3

The __________ is a program that controls the execution of application programs and acts as an interface between applications and the computer hardware.

A)job control language
B)operating system
C)batch system
D)nucleus

Answer 3

B

Question 4

Privileged instructions are certain instructions that are designated special and can be executed only by the monitor.

Question 5

Scheduling and memory management are the two OS functions that are most relevant to the study of computer organization and architecture.

Question 6

With demand paging it is necessary to load an entire process into main memory.

Question 7

The most important system program is the OS.

Question 8

The _________ defines the repertoire of machine language instructions that a computer can follow.

A)ABI
B)API
C)HLL
D)ISA

Question 9

ARM provides a versatile virtual memory system architecture that can be tailored to the needs of the embedded system designer.

Question 10

With a batch operating system the user does not have direct access to the processor.

Question 11

The x86 includes hardware for both segmentation and paging.

Question 12

The ________ gives a program access to the hardware resources and services available in a system through the user instruction set architecture supplemented with high-level language library calls.

A)JCL
B)ISA
C)ABI
D)API

Question 13

The end user is concerned mainly with the computer's architecture.

Question 14

Facilities and services provided by the OS that assist the programmer in creating programs are in the form of _________ programs that are not actually part of the OS but are accessible through the OS.

A)utility
B)multitasking
C)JCL
D)logical address

Question 15

Both batch multiprogramming and time sharing use multiprogramming.

Question 16

The OS must determine how much processor time is to be devoted to the execution of a particular user program.

Question 17

Uniprogramming is the central theme of modern operating systems.

Question 18

Swapping is an I / O operation.

Question 19

An interrupt is a hardware-generated signal to the processor.

Question 20

The _________ defines the system call interface to the operating system and the hardware resources and services available in a system through the user instruction set architecture.

A)HLL
B)API
C)ABI
D)ISA

Question 21

The technique where memory is expanded to hold three,four,or more programs and switch among all of them is __________,(or multitasking).

Question 22

Three key interfaces in a typical computer system are: instruction set architecture,application programming interface,and ___________.

Question 23

A _________ system groups the user's program with programs for other users and is submitted by a computer operator,with results being printed out for the user upon completion of the program.

Question 24

The _________ is a program that manages the computer's resources,provides services for programmers,and schedules the execution of other programs.

Question 25

A _________ is a collection of memory regions.

A)APX
B)nucleus
C)domain
D)page table

Question 26

Early computer systems presented two main problems: setup time and _____.

Question 27

With _________ the virtual address is the same as the physical address.

A)unsegmented unpaged memory
B)unsegmented paged memory
C)segmented unpaged memory
D)segmented paged memory

Question 28

Virtual memory schemes make use of a special cache called a ________ for page table entries.

A)TLB
B)HLL
C)VMC
D)SPB

Question 29

In a _________ system multiple users simultaneously access the system through terminals,with the OS interleaving the execution of each user program in a short burst or quantum of computation.

Question 30

________ is when the processor spends most of its time swapping pages rather than executing instructions.

A)Swapping
B)Thrashing
C)Paging
D)Multitasking

Question 31

The ________ scheduler is also known as the dispatcher.

A)long-term
B)medium-term
C)short-term
D)I / O

Question 32

The __________ ,or nucleus,contains the most frequently used functions in the OS.

Question 33

The OS maintains a __________ for each process that shows the frame location for each page of the process.

A)kernel
B)page table
C)TLB
D)logical address

Question 34

The portion of the monitor that must always be in main memory and available for execution is referred to as the __________.

Question 35

A _________ is a special type of programming language used to provide instructions to the monitor.

A)job control language
B)multiprogram
C)kernel
D)utility

Question 36

The _________ scheduler determines which programs are admitted to the system for processing.

A)long-term
B)medium-term
C)short-term
D)I / O

Question 37

A _________ is an actual location in main memory.

A)logical address
B)partition address
C)base address
D)physical address

Question 38

In an _________ system the user / programmer interacts directly with the computer,usually through a keyboard / display terminal to request the execution of a job or to perform a transaction.

Question 39

The five defined states for a process are: new,ready,waiting,halted,and ________.

Question 40

A _________ system works only one program at a time.

A)batch
B)uniprogramming
C)kernel
D)privileged instruction

Question 41

__________ allows the programmer to view memory as consisting of multiple address spaces or segments.

Question 42

Each process is represented in the OS by a ___________,which typically contains identifier,state,priority,program counter,memory pointers,context data,I / O status information,and accounting information.

Question 43

When the processor executes a process it automatically converts from logical to physical address by adding the current starting location of the process,called its __________,to each logical address.

Question 44

_________ paging means that each page of a process is brought in only when it is needed.

Question 45

Because a process executes only in main memory,that memory is referred to as __________.