Question 1

The ABI is the boundary between hardware and software.

Accepted Answer

The ABI (Application Binary Interface) defines the interface between two binary program modules, often between an operating system and user programs, not the boundary between hardware and software.

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.

Accepted Answer

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

Accepted Answer

The operating system is the program that controls the execution of application programs and acts as an interface between applications and the computer hardware. A job control language is a scripting language used to control job processing in batch systems. Batch systems are a type of operating system used for batch processing, but they are not the program that controls the execution of application programs. A nucleus is a component of an operating system that manages system resources, but it is not the entire operating system.

Question 4

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

Accepted Answer

Privileged instructions are instructions that can only be executed by the kernel or monitor mode of the CPU, and are not accessible to user applications or processes. These instructions are typically used for low-level system operations, such as managing memory, accessing hardware devices or controlling system settings.

Question 5

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

Accepted Answer

Scheduling and memory management are critical functions of an operating system that directly impact the performance and efficiency of a computer system. Therefore, they are essential topics in the study of computer organization and architecture.

Question 6

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

Accepted Answer

With demand paging, only the necessary pages of a process are loaded into main memory, not the entire process.

Question 7

The most important system program is the OS.

Accepted Answer

The OS (Operating System) is the most important system program as it manages all the resources and provides a platform for other programs to run on. It controls the input/output operations, memory allocation, file management, and scheduling of tasks, among other critical functions. Without an operating system, a computer cannot function properly.

Question 8

The _________ defines the repertoire of machine language instructions that a computer can follow.
A)ABI
B)API
C)HLL
D)ISA

Accepted Answer

The ISA (Instruction Set Architecture) defines the set of instructions that a computer processor can execute, including machine language instructions. The ABI (Application Binary Interface) and API (Application Programming Interface) are related, but not the same as the ISA. HLL (High-Level Language) refers to programming languages that are easier to read and write than machine language, but still need to be translated into machine language instructions.

Question 9

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

Accepted Answer

ARM's virtual memory system architecture is highly customizable, allowing embedded system designers to tailor it to their specific needs.

Question 10

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

Accepted Answer

In a batch operating system, the jobs are submitted in advance and the system automatically executes them without direct user intervention or interaction. Therefore, the user does not have direct access to the processor.

Question 11

The x86 includes hardware for both segmentation and paging.

Accepted Answer

The x86 architecture supports both segmentation and paging mechanisms for memory management. Segmentation divides the memory into logical segments while paging divides the memory into fixed size pages. Both mechanisms provide memory protection and virtual memory support.

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

Accepted Answer

The API (Application Programming Interface) provides a set of functions and procedures that allow a program to access the hardware and services provided by the operating system or other software. It is often used in conjunction with a high-level programming language and can be considered a layer between the application and the operating system. JCL (Job Control Language) is used to control batch processing on mainframe computers, ISA (Instruction Set Architecture) is a low-level programming language used to program microprocessors, and ABI (Application Binary Interface) is a specification for how functions and data are organized in a compiled program.

Question 13

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

Accepted Answer

The end user is typically concerned with the functionality and performance of the computer, such as the speed and ease of use of its applications, rather than its architecture. Technical details such as the computer's architecture are usually of interest primarily to computer professionals and experts.

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

Accepted Answer

Utilities are commonly provided by the OS to assist programmers in creating programs. These programs are not actually part of the OS but are accessible through the OS. Examples of such utilities include editors, debuggers, and compilers. Multitasking refers to the ability of the OS to run multiple programs at the same time. JCL (Job Control Language) is a scripting language used on IBM mainframe operating systems to instruct the OS on how to run batch jobs. Logical address refers to the address generated by the CPU, which is translated to a physical address by the memory management unit.

Question 15

Both batch multiprogramming and time sharing use multiprogramming.

Accepted Answer

Both batch multiprogramming and time sharing involve running multiple programs simultaneously, which is achieved through multiprogramming.

Question 16

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

Accepted Answer

The OS has the responsibility to manage the allocation of processor time to various programs running on the system, including determining how much time is to be devoted to a particular user program based on its priority, complexity, and other factors.

Question 17

Uniprogramming is the central theme of modern operating systems.

Accepted Answer

Multiprogramming, where multiple programs are executed simultaneously, is the central theme of modern operating systems.

Question 18

Swapping is an I / O operation.

Accepted Answer

Swapping refers to moving data from memory to a secondary storage device, usually a hard disk. This involves input/output (I/O) operations.

Question 19

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

Accepted Answer

An interrupt is a signal sent to the processor by a hardware device to request its attention and interrupt its current operation. This allows the processor to temporarily halt its current task and service the interrupt, ensuring important events or tasks can be handled in a timely manner.

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

Accepted Answer

The acronym ABI stands for Application Binary Interface, which defines the system call interface and establishes the binary compatibility between two executable programs. It specifies how functions, variables, and libraries must be implemented and accessed by the program in the machine code level. The API (Application Programming Interface) is a higher-level of abstraction and defines the set of protocols, methods, and tools for building software applications, while the HLL (High-Level Language) refers to the programming language syntax and semantics used to write software code. The ISA (Instruction Set Architecture) refers to the hardware design aspects of a processor that define how instructions are encoded, executed, and accessed by the computer.

Quiz 8: Operating System Support