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Questions and Answers
Which type of hypervisor runs directly on the hardware of a host?
Which type of hypervisor runs directly on the hardware of a host?
Which of the following is not a Type 1 hypervisor?
Which of the following is not a Type 1 hypervisor?
What is the minimum amount of hard disk space required for each VM on Windows 10 Hyper-V?
What is the minimum amount of hard disk space required for each VM on Windows 10 Hyper-V?
Which processor feature is required for Windows 10 Hyper-V?
Which processor feature is required for Windows 10 Hyper-V?
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What is a primary benefit of virtualization provided by VMs?
What is a primary benefit of virtualization provided by VMs?
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Which of the following is a characteristic of Type 2 hypervisors?
Which of the following is a characteristic of Type 2 hypervisors?
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What is the minimum memory requirement for running Windows Virtual PC on Windows 7?
What is the minimum memory requirement for running Windows Virtual PC on Windows 7?
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Which of the following is NOT an example of a Type 2 hypervisor?
Which of the following is NOT an example of a Type 2 hypervisor?
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What is a primary advantage of server virtualization?
What is a primary advantage of server virtualization?
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Which of the following describes client-side virtualization?
Which of the following describes client-side virtualization?
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What is the role of a boot loader in dual booting?
What is the role of a boot loader in dual booting?
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What is the role of virtualization software in relation to virtual machines?
What is the role of virtualization software in relation to virtual machines?
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Which of the following is NOT a benefit of client-side virtualization?
Which of the following is NOT a benefit of client-side virtualization?
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What is a hypervisor used for in server virtualization?
What is a hypervisor used for in server virtualization?
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Which of the following is NOT a characteristic of traditional server deployment?
Which of the following is NOT a characteristic of traditional server deployment?
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What is a Type 1 hypervisor also known as?
What is a Type 1 hypervisor also known as?
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Which of the following is a characteristic of the host OS in client-side virtualization?
Which of the following is a characteristic of the host OS in client-side virtualization?
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How does server virtualization help organizations?
How does server virtualization help organizations?
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What distinguishes cloud computing from traditional computing?
What distinguishes cloud computing from traditional computing?
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One of the following is an outcome of improved disaster recovery in server virtualization. Which is it?
One of the following is an outcome of improved disaster recovery in server virtualization. Which is it?
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What are virtual machines (VMs)?
What are virtual machines (VMs)?
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What does client-side virtualization enable users to do?
What does client-side virtualization enable users to do?
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In which type of cloud computing does an organization maintain exclusive access to the resources?
In which type of cloud computing does an organization maintain exclusive access to the resources?
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Which disadvantage is associated with traditional server deployment?
Which disadvantage is associated with traditional server deployment?
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What is a key operational hazard associated with shared resources?
What is a key operational hazard associated with shared resources?
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What does encapsulation in virtual machines (VMs) allow for?
What does encapsulation in virtual machines (VMs) allow for?
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How does hardware abstraction benefit virtual machines?
How does hardware abstraction benefit virtual machines?
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In what way does cloud computing differ from virtualization?
In what way does cloud computing differ from virtualization?
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What is a defining characteristic of rapid elasticity in cloud computing?
What is a defining characteristic of rapid elasticity in cloud computing?
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What does resource pooling in cloud computing entail?
What does resource pooling in cloud computing entail?
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What does on-demand self-service in cloud computing allow users to do?
What does on-demand self-service in cloud computing allow users to do?
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What is one corporate benefit of cloud computing?
What is one corporate benefit of cloud computing?
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What is a primary benefit of virtualization in a cloud environment?
What is a primary benefit of virtualization in a cloud environment?
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How does cloud computing help mitigate the impact of virus and worm attacks?
How does cloud computing help mitigate the impact of virus and worm attacks?
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Which of the following is NOT a cloud service model?
Which of the following is NOT a cloud service model?
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What is a major advantage of using Software as a Service (SaaS)?
What is a major advantage of using Software as a Service (SaaS)?
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What role does standardization play in cloud computing?
What role does standardization play in cloud computing?
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What defines the centralization principle in cloud computing?
What defines the centralization principle in cloud computing?
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What does cloud computing enable users to do?
What does cloud computing enable users to do?
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Which principle enables user-based self-provisioning of IT services?
Which principle enables user-based self-provisioning of IT services?
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What allows businesses to purchase resources on-demand instead of buying hardware outright?
What allows businesses to purchase resources on-demand instead of buying hardware outright?
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Which of the following is NOT a characteristic of IaaS?
Which of the following is NOT a characteristic of IaaS?
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Which cloud service model extends IaaS to provide IT as a service?
Which cloud service model extends IaaS to provide IT as a service?
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What does UCaaS stand for?
What does UCaaS stand for?
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What is a benefit of using XaaS models?
What is a benefit of using XaaS models?
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Which of the following is an example of a cloud service provider offering IaaS?
Which of the following is an example of a cloud service provider offering IaaS?
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Which model is designed for disaster recovery in the cloud?
Which model is designed for disaster recovery in the cloud?
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What is the primary function of Virtual Desktop Infrastructure (VDI)?
What is the primary function of Virtual Desktop Infrastructure (VDI)?
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Study Notes
Chapter 9: Virtualization and Cloud Computing
- Chapter covers Virtualization and Cloud Computing concepts.
- Key topics include virtualization and cloud computing.
- Specific Objectives covered:
- Installing a virtual machine on a computer.
- Explaining server virtualization.
- Installing virtualization software on a computer.
- Comparing cloud computing concepts.
- Describing the uses of the cloud.
- Explaining the characteristics of public, private, hybrid, and community cloud computing.
9.1 Virtualization
- Virtualization allows a single computer to host multiple virtual computers (VMs).
- VMs share the host computer's hardware.
- Virtualization software isolates physical hardware from VMs.
- VM images can be saved and restarted.
- Cloud computing separates applications from hardware.
- Service providers manage cloud infrastructure (e.g., Amazon Web Services (AWS)).
- Virtualization is fundamental to cloud computing.
- Traditional server deployment uses dedicated servers with large RAM, powerful CPUs, and multiple large storage devices.
- Disadvantages of traditional servers are wasted resources, single point of failure, and server sprawl.
Server Virtualization
- Server virtualization leverages idle resources to reduce server count.
- A hypervisor program manages computer resources and multiple VM instances.
- Hypervisors give VMs access to physical hardware (CPUs, memory, disk controllers, and NICs).
- Each VM runs a complete, separate operating system.
Advantages of Server Virtualization
- Improves resource utilization.
- Reduces space requirements.
- Decreases energy consumption.
- Lowers costs.
- Speeds up server provisioning.
- Enhances server uptime.
- Improves disaster recovery.
- Supports legacy systems.
Boot Options
- Dual boot allows multiple operating systems on a single PC.
- Each OS needs its own hard drive or partition.
- The boot loader (boot.ini) lets you choose between operating systems at boot time.
- Client-side virtualization involves a host machine using its resources to host a virtual machine (guest).
- A physical host machine handles the guest VM.
- The guest VM's operating system is separate from the host's.
Client-Side Virtualization
- Client-side virtualization enables running VMs on a local computer.
- Allows testing new operating systems and software.
- Host computer is the physical machine controlled by a user.
- Host OS is the operating system of the host computer.
- Guest OS is the operating system running in the VM.
- Benefits of Client-Side Virtualization:
- Smaller footprint.
- Reduced power and AC needs.
- Centralized management.
- Lower corporate image costs.
- Improved user experience.
- Multiple operating systems on one PC simultaneously.
Type 1 Hypervisors
- Also known as native hypervisors.
- Typically used in server virtualization, data centers, and cloud computing.
- Run directly on hardware, managing resource allocation to VMs.
- Installed directly onto a server.
- Examples include VMware vSphere/ESXi, Xen, and Oracle VM Server.
Type 2 Hypervisors
- Also known as hosted hypervisors.
- Typically used in client-side virtualization.
- Work with the host computer to create and use multiple VMs.
- Don't require management console software.
- Examples include VMware Workstation, Windows Hyper-V, and Oracle VirtualBox.
Virtual Machine Requirements
- Specific hardware requirements for different host operating systems are outlined for Windows 10 Pro/Server, and Windows 8/7.
Key Concepts: VM Benefits
- Partitioning isolates VMs on a host, limiting memory capacity.
- Isolation keeps VMs separate on the same host, only operational hazards are improper shared resource designs, such as network bandwidth or disk access.
- Encapsulation describes files and defines resource usage and unique identifiers in VMs.
- VMs are easy to back up, modify, or duplicate.
- Hardware abstraction allows easy VM movement between hosts (load balancing).
9.2 Cloud Computing
- Cloud computing allows application access over the internet, by any device, anywhere.
- Cloud computing and virtualization are different concepts.
- Cloud computing separates an application from its hardware, while virtualization separates the operating system from the hardware.
- Cloud workload types:
- Physical: one per server, static, manual provisioning.
- Virtual: many apps per server, mobile, dynamic provisioning.
- Cloud: multi-tenant per server, elastic, automated scaling.
Cloud Computing Characteristics
- Rapid elasticity: quickly adjust capabilities up or down as needed.
- Resource pooling: resources shared among multiple consumers.
- On-demand self-service: provision computing capabilities without human intervention.
- Broad network access: available through network access.
- Measured service: usage monitored and controlled with billing for the resources consumed.
Cloud Computing Benefits
- Corporate Benefits:
- Pay only for used processing and storage, easily scale up or down resources.
- Avoid handling increased data/processing demands.
- Lab Benefits:
- Easier virus/worm control in virtualized environments.
- User Benefits:
- Data access from anywhere, anytime.
IT Principles that Form the Cloud
- Centralization consolidates computing, storage, network, and applications in data centers.
- Virtualization enables scalable and quick provisioning.
- Automation improves IT service efficiency and reduces time for provisioning of IT services.
- Standardization facilitates component integration from different vendors.
Cloud Services
- Cloud service providers offer tailored services (Software as a Service (SaaS), Platform as a Service (PaaS), Infrastructure as a Service (IaaS), Anything as a Service (XaaS)).
- Each cloud service model offers specific functionalities.
9.3 Chapter Summary
- Chapter covers server virtualization, software installation and cloud computing concepts.
- This includes explaining server virtualization and describing cloud uses, as well as public cloud, private cloud, hybrid cloud, and community cloud characteristics.
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Description
This quiz explores key concepts from Chapter 9 on Virtualization and Cloud Computing. It includes topics like installing virtual machines, server virtualization, and the distinctions between various types of cloud computing. Test your understanding of how these technologies work and their applications.
