OS II - Quiz 1
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Questions and Answers

Which cloud deployment model is most similar to owning a private car?

  • Public Cloud
  • Private Cloud (correct)
  • Hybrid Cloud
  • None of the above

Hybrid cloud solutions require an upfront payment similar to private cloud solutions.

False (B)

If a business requires a platform for building software products, which service model should they choose?

Platform as a Service

Microsoft Office 365 is an example of the _______ service model.

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

Match the following cloud service models with their description:

<p>IaaS = Provides on-demand access to virtual machines and other infrastructure resources PaaS = Offers a complete platform for developing and managing applications SaaS = Provides access to ready-to-use application software On-Premises = Complete control, responsibility and cost of IT resources</p> Signup and view all the answers

Which type of cloud deployment model is usually used by Federal agencies?

<p>Private cloud for sensitive data and public cloud for non-sensitive data (B)</p> Signup and view all the answers

With IaaS, customers manage the infrastructure, but the service provider manages the software.

<p>False (B)</p> Signup and view all the answers

What cloud provider provides private cloud for some organizations?

<p>AWS and vmware</p> Signup and view all the answers

Which of the following is a benefit of virtualization?

<p>Maximum resource utilization (A)</p> Signup and view all the answers

On-premise systems offer enhanced flexibility compared to cloud computing.

<p>False (B)</p> Signup and view all the answers

What is the core concept behind cloud computing regarding resource consumption?

<p>pay-as-you-go</p> Signup and view all the answers

A cloud computing model that allows anyone to use resources is called a ______ cloud.

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

Which of the following is NOT a characteristic of cloud computing?

<p>Limited network access (B)</p> Signup and view all the answers

In terms of security, companies always prefer cloud computing over on-premise solutions.

<p>False (B)</p> Signup and view all the answers

Name the three main service models within cloud computing (abbreviations are sufficient).

<p>IaaS, PaaS, SaaS</p> Signup and view all the answers

What is the software that enables virtualization called?

<p>Hypervisor (C)</p> Signup and view all the answers

A Type 1 hypervisor runs as an application on the host OS.

<p>False (B)</p> Signup and view all the answers

What is the term used to describe the virtual computing environments created by virtualization?

<p>Virtual Machines</p> Signup and view all the answers

________ virtualization combines multiple physical networks into one virtual, software-based network.

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

Match the virtualization type with its description:

<p>Desktop Virtualization = Allows multiple desktop OS to run in each VM Network Virtualization = Combines physical networks into software defined networks Storage Virtualization = Combines storage devices into a single managed pool Application Virtualization = Runs software applications without directly installing</p> Signup and view all the answers

Which type of hypervisor interacts directly with the hardware resources without needing a host OS?

<p>Type 1/Bare Metal Hypervisor (B)</p> Signup and view all the answers

In local desktop virtualization, the VMs run on a server and are accessed remotely.

<p>False (B)</p> Signup and view all the answers

What does 'SDN' stand for in the context of network virtualization?

<p>Software Defined Networking</p> Signup and view all the answers

_______ virtualization enables the use of all storage devices in a system to act as a single managed unit.

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

What is the main advantage of using application virtualization?

<p>It allows applications to run without direct installation on the host OS (B)</p> Signup and view all the answers

Which of the following components is responsible for managing system resources and communication with hardware in a Linux operating system?

<p>Kernel (D)</p> Signup and view all the answers

What is the primary function of the 'init system' within a Linux operating system?

<p>To manage the launch process after the bootloader (D)</p> Signup and view all the answers

What is the typical cost associated with a Linux operating system distribution compared to Windows Server 2025 Standard Edition?

<p>Linux distributions are free, whereas Windows costs $1176 USD. (C)</p> Signup and view all the answers

Under what circumstances would a Linux server typically require a reboot?

<p>When the kernel is updated. (C)</p> Signup and view all the answers

What does the open-source nature of Linux provide to its users?

<p>The freedom to study, modify, and use programs of their choice. (D)</p> Signup and view all the answers

Which of the following is NOT a typical component of a Linux distribution?

<p>Windows Kernel (D)</p> Signup and view all the answers

Which of the following is a characteristic of a Debian-based Linux distribution as compared to an RPM-based distribution?

<p>It utilizes the dpkg package format. (C)</p> Signup and view all the answers

Which of these distributions does NOT typically rely on a package manager to install software?

<p>Slackware Linux (D)</p> Signup and view all the answers

Which of the following best describes the relationship between Fedora and Red Hat Enterprise Linux (RHEL)?

<p>Fedora is upstream of the commercial RHEL. (A)</p> Signup and view all the answers

Which of the following desktop environments is known for its flexibility and customization options, specifically including the workspace called Plasma?

<p>KDE (B)</p> Signup and view all the answers

If a user wants a lightweight desktop environment ideal for an older computer, which of these would be the BEST option?

<p>Xfce (A)</p> Signup and view all the answers

Which of the following package managers is NOT associated with the distributions mentioned in the content?

<p>rpm (A)</p> Signup and view all the answers

Which distribution is known for a package management system that allows new software to be compiled from source by system administrators or normal users?

<p>Slackware Linux (A)</p> Signup and view all the answers

Which of the following is a common feature of the package managers used in Linux distributions?

<p>They handle software dependencies. (A)</p> Signup and view all the answers

Which of the following distributions uses both apt and Ubuntu Software Center for package management?

<p>Ubuntu (C)</p> Signup and view all the answers

Which component of a Linux system is MOST accurately described as the 'sparkplug' that initiates the system's launch process?

<p>Bootloader (B)</p> Signup and view all the answers

A system administrator is troubleshooting an issue related to managing system resources. Which core component of the Linux OS should they MOST likely investigate?

<p>The kernel (C)</p> Signup and view all the answers

What is a primary characteristic of the Linux operating system, that directly contrasts with a Windows Server 2025 Standard Edition, concerning its initial cost?

<p>Linux offers free distributions. (A)</p> Signup and view all the answers

Which scenario would MOST likely necessitate a reboot of a Linux server?

<p>When the kernel is updated. (B)</p> Signup and view all the answers

What does the freedom to study how a program works, as permitted by the open-source nature of Linux, enable users MOST directly to do?

<p>Modify the program for specific needs. (B)</p> Signup and view all the answers

Which of the following best describes the primary difference in software installation between Windows and Linux distributions?

<p>Linux utilizes a package manager for software installs, while Windows typically uses downloaded executable files from the web. (D)</p> Signup and view all the answers

What is a key characteristic that distinguishes Debian-based distributions from RPM-based distributions?

<p>Debian utilizes the <code>apt</code> package manager and <code>.deb</code> packages, while RPM uses the <code>yum</code>/<code>zypper</code> package manager with <code>.rpm</code> packages. (B)</p> Signup and view all the answers

Which of the following best describes the role of a package manager in a Linux distribution?

<p>A package manager automates software downloads, dependency management, and updates for the OS and its applications. (B)</p> Signup and view all the answers

In the context of Linux distributions, what is the significance of the term 'init system'?

<p>The init system is the first process to run when booting, and it manages all other processes and system setup. (C)</p> Signup and view all the answers

Which distribution does not use a package manager as mentioned in the text, and how does it typically handle software installation?

<p>Slackware Linux; software is compiled by the user or system administrator and does not used prebuilt packages. (B)</p> Signup and view all the answers

Which of the following statements accurately describes the relationship between Ubuntu and Debian?

<p>Ubuntu is based on Debian's unstable branch and incorporates it's own package management software. (C)</p> Signup and view all the answers

What distinguishes Arch Linux from other distributions like Ubuntu or Fedora in terms of installation?

<p>Arch Linux does not include a graphical installer and is primarily installed via the terminal. (B)</p> Signup and view all the answers

Which of the following desktop environments is described as having a workspace called Plasma and is included on Linux Mint?

<p>KDE (D)</p> Signup and view all the answers

A user with an older computer seeks a desktop environment that is fast and light weight. Based on the provided context which of these options would be most appropriate?

<p>The Xfce desktop environment because it’s specifically designed for efficiency and speed. (A)</p> Signup and view all the answers

Which of the following is a characteristic of the package managers used in Linux distributions?

<p>They manage the installation of all softwares and dependencies, plus the updating and upgrading of systems and applications. (B)</p> Signup and view all the answers

Flashcards

What is Virtualization?

A virtual layer created by software that mimics physical hardware, enabling the creation of virtual machines (VMs).

What is a Virtual Machine (VM)?

A virtual representation of a physical system, allowing multiple operating systems (OS) to run independently on a single computer.

What is a Hypervisor?

Software that enables virtualization by creating an interface between the physical machine (host) and virtual machines (guests), managing resource allocation.

What is Desktop Virtualization?

Virtualization technology that allows users to run multiple desktop operating systems (OS) within virtual machines.

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What is Virtual Desktop Infrastructure (VDI)?

A type of desktop virtualization where virtual machines are hosted on a central server, allowing users to access any OS remotely.

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What is Network Virtualization?

Virtualization technology that consolidates multiple physical networks into a single virtual network for simplified management.

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What is Software Defined Networking (SDN)?

A type of network virtualization that virtualizes the hardware controlling network traffic routing, offering flexibility and programmability.

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What is Storage Virtualization?

Virtualization technology that combines all storage devices into a single pool accessible to multiple virtual machines.

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What is Application Virtualization?

Virtualization technology that allows running software applications without direct installation into the host's OS.

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What is Remote Application Virtualization?

A type of application virtualization where applications run on a server and users access them remotely, requiring a network connection.

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Resource Efficiency

Using virtualization, you can run multiple operating systems on a single physical server, making the most of your hardware resources and reducing costs.

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Minimal Downtime

Virtualization allows you to run multiple virtual machines (VMs) with the same operating system. If one VM crashes, the others keep running, minimizing service disruptions.

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What is Cloud Computing?

Cloud computing involves using internet-based resources to access and manage computing services. You pay for what you use, on demand, like renting a car instead of buying it.

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Public Cloud

The cloud provider owns and manages the infrastructure, while you pay for using their services like storage, computing power, and networking.

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Private Cloud

You have complete control over an entire infrastructure, dedicated to your organization's needs. This ensures high security but can be more expensive.

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Hybrid Cloud

The benefits of both public and private clouds combined. You can use public cloud services for flexible workloads and keep sensitive data in a secure private cloud.

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Cloud Service Models

Cloud computing offers services in three main categories: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

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IaaS - Infrastructure as a Service

The cloud provider offers you basic computing resources like virtual servers, storage, and networking. You are responsible for managing your software and operating systems.

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IaaS (Infrastructure as a Service)

A cloud computing service model where the provider manages the infrastructure (servers, storage, networking), while the customer manages the software and applications.

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PaaS (Platform as a Service)

A cloud computing service model where the provider manages both the infrastructure and platform for developing, testing, and managing applications, but customers manage their applications.

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SaaS (Software as a Service)

A cloud computing service model where the provider manages the entire application stack, and customers simply access and use the application over the internet.

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Pay-as-you-go

A cloud computing model where you pay only for the resources you use, similar to paying for utilities.

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Subscription Model

A cloud computing model where you pay a fixed monthly fee for a set amount of resources, regardless of how much you use.

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What is Linux?

Linux is a popular open-source operating system (OS) known for its reliability, security, and flexibility. It's widely used in servers, desktops, and embedded systems.

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What is the Linux Kernel?

The Linux kernel is the core of the OS, responsible for managing system resources like memory, processes, and communication with hardware.

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What is a Bootloader?

The bootloader is the first program that runs when you turn on your computer. It prepares the system for the kernel to load, ensuring a smooth boot process.

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What is a Desktop Environment?

A desktop environment provides a graphical user interface (GUI) for interacting with the OS, making it easier for users to manage their computer and applications.

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Why is Linux Secure?

Linux is known for its robustness against viruses, malware, and ransomware attacks due to its open-source nature and a strong security model.

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What is a package manager?

Software that manages installing, updating, and removing programs on a Linux system. It simplifies software management and ensures dependencies are met.

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What is a Linux distribution (Distro)?

A collection of software packages, including the Linux kernel, that provides a complete operating system experience. It's like a pre-made meal with everything you need to enjoy a Linux system.

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What are Debian packages (Deb)?

A common package format used by Debian-based Linux distributions like Ubuntu and Linux Mint. It's like a standardized container for software.

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What are RPM packages?

A common package format created by Red Hat used in distributions like Fedora and CentOS. It's another container for software, similar to Debian packages.

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What is Ubuntu?

A Debian-based distribution known for its user-friendly interface and strong community support. It's a popular choice for beginners.

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What is CentOS?

A Red Hat Enterprise Linux (RHEL) distribution known for its focus on stability and reliability. It's often used in enterprise environments.

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What is KDE?

A desktop environment known for its powerful, customizable features and applications. It's like having a fully equipped workshop for your desktop.

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What is Xfce?

A desktop environment known for its simplicity and efficiency, making it a good choice for older computers. It's lightweight and fast.

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What is Cinnamon?

A popular desktop environment that's a fork of Gnome, known for its user-friendly interface and focus on performance. It's found in Linux Mint.

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What is LXDE?

A lightweight desktop environment that's known for its speed and simplicity. It's perfect for computers with limited resources.

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What is the kernel?

The core of the Linux operating system, responsible for managing system resources, such as memory, processes, and communication with hardware. It's like the brain of the OS.

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What is a Linux distribution?

A collection of software packages, including the core kernel, that provide a complete operating system experience. It's like a pre-made meal with all the ingredients.

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What are the components of Linux distributions?

Linux distributions (also called Distros) include not only the Linux kernel but also essential components like a package manager, an init system, GNU tools and libraries, documentation, and network configuration utilities.

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How is software installed in Linux?

In Linux, instead of downloading and installing software directly, we use a package manager that comes with the distro. It searches, downloads, and installs software, along with required dependencies, managing updates and upgrades.

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What are Debian packages?

Debian packages (Deb) are a common package format used by Debian and its derivatives like Ubuntu and Linux Mint.

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