Operating System Concepts Chapter 1 Quiz
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Questions and Answers

What is the primary difference between SRAM and DRAM?

  • Storage capacity
  • Refresh requirement (correct)
  • Access time
  • Storage material

    • What is the function of the disk controller in a hard disk drive?

  • To determine the logical interaction between the device and the computer (correct)
  • To physically move the read/write head
  • To read and write data on the disk
  • To manage the storage of data on the disk

    • What is the advantage of non-volatile memory devices over hard disks?

  • They are more widely available
  • They use less power
  • They are faster (correct)
  • They are cheaper

    • How is a disk surface logically divided?

    <p>Into tracks and sectors</p> Signup and view all the answers

    What is a word in computer architecture?

    <p>A group of bytes that make up the native unit of data</p> Signup and view all the answers

    What determines the size of a word in a computer architecture?

    <p>The computer's native register size and memory addressing</p> Signup and view all the answers

    What is a characteristic of SRAM?

    <p>It uses transistors to store information</p> Signup and view all the answers

    What is the purpose of capacitors in DRAM?

    <p>To store data</p> Signup and view all the answers

    What is the primary role of an operating system in a computer system?

    <p>To manage user programs and make solving user problems easier</p> Signup and view all the answers

    Which of the following components provides basic computing resources in a computer system?

    <p>Hardware</p> Signup and view all the answers

    What is the primary goal of an operating system from a user's perspective?

    <p>To provide convenience, ease of use, and good performance</p> Signup and view all the answers

    What is the term used to describe the program that runs on a computer and manages the execution of user programs and the allocation of system resources?

    <p>Operating System</p> Signup and view all the answers

    What is the purpose of an interrupt in a computer system?

    <p>To transfer control to the interrupt service routine</p> Signup and view all the answers

    What is the primary function of a device controller in a computer system?

    <p>To manage I/O operations</p> Signup and view all the answers

    What type of memory is used for cache memory and RAM?

    <p>Volatile</p> Signup and view all the answers

    What is the primary function of a kernel in an operating system?

    <p>To run at all times on the computer</p> Signup and view all the answers

    What is the primary reason for implementing multiprogramming in a batch system?

    <p>To ensure that the CPU and I/O devices are always utilized</p> Signup and view all the answers

    What is the primary difference between a hardware interrupt and a software interrupt?

    <p>The source of the interrupt signal</p> Signup and view all the answers

    What is the term for a technique where the operating system collects programs and data together before processing starts?

    <p>Batch processing</p> Signup and view all the answers

    What is the primary goal of job scheduling in a multiprogramming system?

    <p>To ensure that the CPU is always executing a job</p> Signup and view all the answers

    What is the term for a system where multiple processes are allocated with computer resources in respective time slots?

    <p>Time-sharing system</p> Signup and view all the answers

    What is the primary advantage of multitasking over batch processing?

    <p>Increased user interaction</p> Signup and view all the answers

    What is the primary consequence of a process modifying the operating system?

    <p>The system becomes unstable</p> Signup and view all the answers

    What is the term for a situation where a process is stuck in an infinite loop?

    <p>Infinite loop</p> Signup and view all the answers

    What is a prerequisite for a student to create a new operating-system distribution?

    <p>Significant interest, sufficient time, and adequate disk space</p> Signup and view all the answers

    What is a characteristic of kernel data structures?

    <p>Similar to standard programming data structures</p> Signup and view all the answers

    What type of linked list is commonly used in kernel data structures?

    <p>All of the above</p> Signup and view all the answers

    What is a consequence of having access to source code?

    <p>Students can create new operating-system distributions</p> Signup and view all the answers

    What is a type of data structure used in kernel data structures?

    <p>Binary search tree</p> Signup and view all the answers

    What is a requirement for accessing source code?

    <p>Sufficient interest, time, and disk space</p> Signup and view all the answers

    What is a characteristic of creating a new operating-system distribution?

    <p>Possible with some knowledge, effort, and an Internet connection</p> Signup and view all the answers

    What is a consequence of the availability of source code?

    <p>Students can create new operating-system distributions</p> Signup and view all the answers

    What is the primary purpose of process management in an operating system?

    <p>To manage the allocation and deallocation of system resources</p> Signup and view all the answers

    What is the main difference between a single-threaded process and a multi-threaded process?

    <p>The number of program counters</p> Signup and view all the answers

    What is the primary goal of memory management in an operating system?

    <p>To optimize computer response to users</p> Signup and view all the answers

    What is the main function of the file-system management in an operating system?

    <p>To provide a uniform, logical view of information storage</p> Signup and view all the answers

    What is the primary purpose of caching in an operating system?

    <p>To temporarily store information in use from slower to faster storage</p> Signup and view all the answers

    What is the main difference between a multitasking environment and a multiprocessor environment?

    <p>The need for cache coherency</p> Signup and view all the answers

    What is the primary goal of I/O subsystem management in an operating system?

    <p>To hide the peculiarities of hardware devices from the user</p> Signup and view all the answers

    What is the primary purpose of protection and security in an operating system?

    <p>To control access to resources and defend against attacks</p> Signup and view all the answers

    In symmetric multiprocessing, each processor is assigned a specific task.

    <p>False</p> Signup and view all the answers

    A dual-core design is an example of a multi-chip system.

    <p>False</p> Signup and view all the answers

    The operating system is only responsible for allocating hardware resources.

    <p>False</p> Signup and view all the answers

    In a non-uniform memory access system, all processors access memory at the same speed.

    <p>False</p> Signup and view all the answers

    A program that acts as an intermediary between a user of a computer and the computer hardware is called an operating system.

    <p>True</p> Signup and view all the answers

    Clustered systems are a type of multi-chip system.

    <p>False</p> Signup and view all the answers

    A storage-area network (SAN) is a type of cluster system.

    <p>False</p> Signup and view all the answers

    The kernel is the entire operating system.

    <p>False</p> Signup and view all the answers

    An interrupt is a software-generated error.

    <p>False</p> Signup and view all the answers

    In asymmetric multiprocessing, each processor performs all tasks.

    <p>False</p> Signup and view all the answers

    Multiprocessors are a type of single-core system.

    <p>False</p> Signup and view all the answers

    The operating system is not involved in I/O operations.

    <p>False</p> Signup and view all the answers

    A computer system can be divided into three components: hardware, operating system, and application programs.

    <p>False</p> Signup and view all the answers

    In a symmetric multiprocessing system, processors are connected via a storage-area network (SAN).

    <p>False</p> Signup and view all the answers

    The primary goal of an operating system is to maximize the efficiency of the computer system.

    <p>False</p> Signup and view all the answers

    In a computer system, the operating system is not necessary for convenient use.

    <p>False</p> Signup and view all the answers

    Private cloud is a type of cloud computing that is available via the Internet to anyone willing to pay

    <p>False</p> Signup and view all the answers

    Infrastructure as a Service (IaaS) provides one or more applications available via the Internet

    <p>False</p> Signup and view all the answers

    Real-time embedded systems are the least prevalent form of computers

    <p>False</p> Signup and view all the answers

    Free software and open-source software are the same idea

    <p>False</p> Signup and view all the answers

    The GNU Public License (GPL) is used to promote Digital Rights Management (DRM)

    <p>False</p> Signup and view all the answers

    Virtualbox is a proprietary VMM that can only be used on Windows

    <p>False</p> Signup and view all the answers

    The primary function of load balancers in cloud computing is to provide security like firewalls

    <p>False</p> Signup and view all the answers

    Real-time OS has flexible time constraints that can be adjusted during operation

    <p>False</p> Signup and view all the answers

    The open-source movement has led to the development of new operating systems.

    <p>False</p> Signup and view all the answers

    The availability of source code allows users to modify operating systems without any limitations.

    <p>False</p> Signup and view all the answers

    Virtualization allows users to run multiple operating systems on a single physical machine.

    <p>True</p> Signup and view all the answers

    Open-source operating systems are only available for Windows and macOS.

    <p>False</p> Signup and view all the answers

    The rise of virtualization has made it easier for students to become operating-system developers.

    <p>True</p> Signup and view all the answers

    The list of open-source operating systems is complete and exhaustive.

    <p>False</p> Signup and view all the answers

    Virtual appliances are proprietary and can only be used on Windows.

    <p>False</p> Signup and view all the answers

    The availability of source code has made it possible to study operating systems only through documentation and behavior.

    <p>False</p> Signup and view all the answers

    A student can create a new operating-system distribution without an Internet connection.

    <p>False</p> Signup and view all the answers

    It is impossible to get access to source code of operating systems nowadays.

    <p>False</p> Signup and view all the answers

    Kernel data structures are completely different from standard programming data structures.

    <p>False</p> Signup and view all the answers

    Binary search trees are not used in kernel data structures.

    <p>False</p> Signup and view all the answers

    A student can create a new operating-system distribution without any knowledge or effort.

    <p>False</p> Signup and view all the answers

    Access to source code is limited by the availability of disk space.

    <p>True</p> Signup and view all the answers

    Operating systems are impossible to create without access to source code.

    <p>False</p> Signup and view all the answers

    Kernel data structures only include circular linked lists.

    <p>False</p> Signup and view all the answers

    What is a significant factor that has enabled students to create new operating-system distributions?

    <p>Access to source code and an Internet connection</p> Signup and view all the answers

    How do kernel data structures differ from standard programming data structures?

    <p>They are similar, but with some modifications</p> Signup and view all the answers

    What is a consequence of the availability of source code for operating systems?

    <p>Students can study and modify operating systems</p> Signup and view all the answers

    What is a requirement for creating a new operating-system distribution?

    <p>Knowledge, effort, and an Internet connection</p> Signup and view all the answers

    What is a characteristic of kernel data structures in operating systems?

    <p>They are similar to standard programming data structures</p> Signup and view all the answers

    What has enabled the development of new operating systems?

    <p>The open-source movement and access to source code</p> Signup and view all the answers

    What is a benefit of the availability of source code for operating systems?

    <p>Students can create new operating-system distributions</p> Signup and view all the answers

    What has made it possible for students to study operating systems?

    <p>The availability of source code</p> Signup and view all the answers

    What is a requirement for accessing kernel data structures?

    <p>Interest, time, and disk space</p> Signup and view all the answers

    What is a consequence of the rise of virtualization?

    <p>It has made it easier for students to become operating-system developers</p> Signup and view all the answers

    With some knowledge, some effort, and an Internet ______, a student can even create a new operating-system distribution.

    <p>connection</p> Signup and view all the answers

    Many kernel data structures are similar to standard programming ______ structures.

    <p>data</p> Signup and view all the answers

    Kernel data structures include ______ linked lists.

    <p>singly</p> Signup and view all the answers

    Kernel data structures include ______ linked lists.

    <p>doubly</p> Signup and view all the answers

    Kernel data structures include ______ linked lists.

    <p>circular</p> Signup and view all the answers

    Kernel data structures include a ______ search tree.

    <p>binary</p> Signup and view all the answers

    A student can create a new operating-system distribution with access to ______ code.

    <p>source</p> Signup and view all the answers

    Just a few years ago, it was difficult or impossible to get access to ______ code.

    <p>source</p> Signup and view all the answers

    The availability of ______ code has made it possible for students to study operating systems.

    <p>source</p> Signup and view all the answers

    Operating System Concepts is in its ______ edition.

    <p>10th</p> Signup and view all the answers

    Match the following types of cloud computing with their descriptions:

    <p>Public cloud = available via Internet to anyone willing to pay Private cloud = run by a company for the company’s own use Hybrid cloud = includes both public and private cloud components Software as a Service (SaaS) = one or more applications available via the Internet</p> Signup and view all the answers

    Match the following types of cloud computing services with their descriptions:

    <p>Infrastructure as a Service (IaaS) = servers or storage available over Internet Platform as a Service (PaaS) = software stack ready for application use via the Internet Software as a Service (SaaS) = one or more applications available via the Internet Hybrid cloud = includes both public and private cloud components</p> Signup and view all the answers

    Match the following real-time systems with their characteristics:

    <p>Real-time embedded systems = most prevalent form of computers, use expanding Traditional OSes = composed of traditional OSes, plus VMMs, plus cloud management tools Free and open-source operating systems = made available in source-code format Cloud computing environments = composed of traditional OSes, plus VMMs, plus cloud management tools</p> Signup and view all the answers

    Match the following operating system concepts with their descriptions:

    <p>Free software = made available in source-code format, counter to the copy protection and Digital Rights Management (DRM) movement Open-source software = two different ideas championed by different groups of people GNU/Linux = example of free and open-source operating system BSD UNIX = example of free and open-source operating system</p> Signup and view all the answers

    Match the following virtualization tools with their descriptions:

    <p>VMware Player = free on Windows, use to run guest operating systems for exploration Virtualbox = open source and free on many platforms, use to run guest operating systems for exploration GNU/Linux = example of free and open-source operating system BSD UNIX = example of free and open-source operating system</p> Signup and view all the answers

    Match the following cloud computing components with their functions:

    <p>Firewalls = security like in cloud computing Load balancers = spread traffic across multiple applications VMMs = used in cloud computing environments Cloud management tools = used in cloud computing environments</p> Signup and view all the answers

    Match the following operating system concepts with their characteristics:

    <p>Real-time OS = has well-defined fixed time constraints, processing must be done within constraint Free software = made available in source-code format, counter to the copy protection and Digital Rights Management (DRM) movement Open-source software = two different ideas championed by different groups of people GNU/Linux = example of free and open-source operating system</p> Signup and view all the answers

    Match the following cloud computing benefits with their descriptions:

    <p>Accessibility = available via Internet to anyone willing to pay Scalability = servers or storage available over Internet Flexibility = software stack ready for application use via the Internet Cost-effectiveness = pay based on usage</p> Signup and view all the answers

    Match the following operating system concepts with their descriptions:

    <p>Cloud computing = available via Internet to anyone willing to pay, pay based on usage Real-time OS = has well-defined fixed time constraints, processing must be done within constraint Free software = made available in source-code format, counter to the copy protection and Digital Rights Management (DRM) movement GNU/Linux = example of free and open-source operating system</p> Signup and view all the answers

    Match the following cloud computing components with their descriptions:

    <p>Public cloud = available via Internet to anyone willing to pay Private cloud = run by a company for the company’s own use Load balancers = spread traffic across multiple applications Firewalls = security like in cloud computing</p> Signup and view all the answers

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