Podcast
Questions and Answers
What characteristic of cloud computing allows resources to be dynamically assigned based on consumer demand?
What characteristic of cloud computing allows resources to be dynamically assigned based on consumer demand?
- Rapid Elasticity (correct)
- On-Demand Self-Service
- Resource Pooling
- Broad Network Access
How does the pay-for-what-you-use model benefit companies using cloud computing?
How does the pay-for-what-you-use model benefit companies using cloud computing?
- Increased processing power always comes at a lower price.
- Companies receive unlimited access to all computing resources.
- Data processing is not measured and metered.
- Companies can avoid high initial capital investment. (correct)
Which feature of cloud computing allows users to access services from a variety of devices?
Which feature of cloud computing allows users to access services from a variety of devices?
- Broad Network Access (correct)
- On-Demand Self-Service
- Resource Pooling
- Measured and Metered Service
What is a significant lab benefit of using cloud computing in relation to security?
What is a significant lab benefit of using cloud computing in relation to security?
Which statement accurately reflects a characteristic of cloud computing's service model?
Which statement accurately reflects a characteristic of cloud computing's service model?
What is the primary function of a host machine in relation to virtual machines?
What is the primary function of a host machine in relation to virtual machines?
Which statement accurately describes Type 1 hypervisors?
Which statement accurately describes Type 1 hypervisors?
What benefit does client-side virtualization provide users?
What benefit does client-side virtualization provide users?
Which of the following is NOT a characteristic of Type 2 hypervisors?
Which of the following is NOT a characteristic of Type 2 hypervisors?
How does client-side virtualization enhance user experience?
How does client-side virtualization enhance user experience?
What is the main purpose of a hypervisor in server virtualization?
What is the main purpose of a hypervisor in server virtualization?
Which of the following is NOT an advantage of server virtualization?
Which of the following is NOT an advantage of server virtualization?
How does cloud computing differ from traditional server deployment?
How does cloud computing differ from traditional server deployment?
Which type of virtualization occurs when a host machine uses its own system resources?
Which type of virtualization occurs when a host machine uses its own system resources?
What is a characteristic of a public cloud?
What is a characteristic of a public cloud?
What is a common disadvantage of traditional server deployment?
What is a common disadvantage of traditional server deployment?
Which of the following best describes the relationship between virtualization and cloud computing?
Which of the following best describes the relationship between virtualization and cloud computing?
What is the function of a Boot Loader in a dual boot system?
What is the function of a Boot Loader in a dual boot system?
What does UCaaS provide to customers?
What does UCaaS provide to customers?
Which service is primarily focused on managing databases in the cloud?
Which service is primarily focused on managing databases in the cloud?
What characterizes SaaS in regard to client applications?
What characterizes SaaS in regard to client applications?
In what way does PaaS benefit application developers?
In what way does PaaS benefit application developers?
Which of the following statements is true regarding virtualization?
Which of the following statements is true regarding virtualization?
What is the minimum memory requirement for running Hyper-V on Windows 10?
What is the minimum memory requirement for running Hyper-V on Windows 10?
Which operating systems can host Hyper-V?
Which operating systems can host Hyper-V?
What feature must the processor support for Hyper-V to function on Windows 10?
What feature must the processor support for Hyper-V to function on Windows 10?
What does encapsulation in virtualization provide?
What does encapsulation in virtualization provide?
What is the minimum hard disk space requirement for each virtual OS in Windows Virtual PC?
What is the minimum hard disk space requirement for each virtual OS in Windows Virtual PC?
How does cloud computing differ from virtualization?
How does cloud computing differ from virtualization?
Which of the following is a benefit of partitioning in virtualization?
Which of the following is a benefit of partitioning in virtualization?
What BIOS feature is necessary for Hyper-V to function on Windows 8?
What BIOS feature is necessary for Hyper-V to function on Windows 8?
What is a key benefit of Platform as a Service (PaaS)?
What is a key benefit of Platform as a Service (PaaS)?
Which of the following is NOT a characteristic of Infrastructure as a Service (IaaS)?
Which of the following is NOT a characteristic of Infrastructure as a Service (IaaS)?
What does XaaS stand for?
What does XaaS stand for?
Which of the following platforms is an example of PaaS?
Which of the following platforms is an example of PaaS?
How does IaaS differ from traditional IT infrastructure?
How does IaaS differ from traditional IT infrastructure?
Which statement best describes the scalability of PaaS?
Which statement best describes the scalability of PaaS?
Which of the following services is typically included in an IaaS model?
Which of the following services is typically included in an IaaS model?
What is a common feature of Anything as a Service (XaaS)?
What is a common feature of Anything as a Service (XaaS)?
Flashcards
Server Virtualization
Server Virtualization
A single physical computer running multiple virtual computers, each with its own operating system and resources.
Hypervisor
Hypervisor
Software that manages and allocates resources from a physical server to virtual machines, allowing for the creation and running of multiple virtual environments.
Virtualization
Virtualization
The ability to run multiple operating systems concurrently on a single physical machine, isolating each operating system and its applications.
Virtual Machine (VM)
Virtual Machine (VM)
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Client-Side Virtualization
Client-Side Virtualization
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Cloud Computing
Cloud Computing
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Public Cloud
Public Cloud
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Private Cloud
Private Cloud
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Type 1 Hypervisor
Type 1 Hypervisor
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Type 2 Hypervisor
Type 2 Hypervisor
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What is Server Virtualization?
What is Server Virtualization?
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What is a Hypervisor?
What is a Hypervisor?
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What is Virtualization?
What is Virtualization?
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What is a Virtual Machine?
What is a Virtual Machine?
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What is the isolation benefit of VM technology?
What is the isolation benefit of VM technology?
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What is the encapsulation benefit of VM technology?
What is the encapsulation benefit of VM technology?
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What is the hardware abstraction benefit of VM technology?
What is the hardware abstraction benefit of VM technology?
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How are cloud computing and virtualization related?
How are cloud computing and virtualization related?
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Rapid Elasticity
Rapid Elasticity
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On-Demand Self-Service
On-Demand Self-Service
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Resource Pooling
Resource Pooling
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Broad Network Access
Broad Network Access
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Measured and Metered Service
Measured and Metered Service
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IaaS (Infrastructure as a Service)
IaaS (Infrastructure as a Service)
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PaaS (Platform as a Service)
PaaS (Platform as a Service)
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SaaS (Software as a Service)
SaaS (Software as a Service)
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Hybrid Cloud
Hybrid Cloud
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Community Cloud
Community Cloud
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Platform as a Service (PaaS)
Platform as a Service (PaaS)
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Infrastructure as a Service (IaaS)
Infrastructure as a Service (IaaS)
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Anything as a Service (XaaS)
Anything as a Service (XaaS)
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Software as a Service (SaaS)
Software as a Service (SaaS)
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Server Management as a Service (MaaS)
Server Management as a Service (MaaS)
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Network as a Service (NaaS)
Network as a Service (NaaS)
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IT as a Service (ITaaS)
IT as a Service (ITaaS)
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Study Notes
IT Essentials (2) NSA112 Chapter 1 - Networking
- The course is IT Essentials v7
- The course is focused on virtualization and cloud computing
- Course is offered by Cisco Academy
Topic 1: Virtualization and Cloud Computing
- Virtualization enables a single computer to host multiple independent virtual computers (VMs)
- Virtualization software separates physical hardware from VM instances
- VMs can be saved as files and restarted as needed
- Cloud computing separates applications from hardware
- Service providers like Amazon Web Services (AWS) manage cloud infrastructure
- Virtualization underpins cloud computing
Chapter 9: Virtualization and Cloud Computing
- Install a virtual machine on a computer
- Explain server virtualization
- Install virtualization software on a computer
- Compare cloud computing concepts
- Describe the uses of the cloud
- Explain characteristics of public, private, hybrid, and community cloud computing
9.1 Virtualization
- Install a virtual machine on a computer
- Explain server virtualization
- Install virtualization software on a computer
Cloud Computing and Virtualization
- Virtualization enables a single computer to host multiple independent virtual computers.
- Virtualization software separates the physical hardware from the VMs.
- A VM image can be saved and re-started.
- Cloud computing separates applications from hardware.
- Service providers manage cloud infrastructure (e.g., AWS).
- Virtualization is the foundation for cloud computing.
Traditional Server Deployment
- Organizations traditionally used dedicated servers for applications and services.
- Dedicated servers have large RAM, powerful CPUs, and multiple storage devices.
- Drawbacks include wasted resources, single points of failure, and server sprawl.
Server Virtualization
- Server virtualization leverages idle resources to reduce server count.
- A hypervisor program manages computer resources and VMs.
- Hypervisors provide VMs access to hardware (CPU, memory, disk controllers, NICs).
- Each VM runs a separate operating system.
Advantages of Server Virtualization
- Better resource utilization
- Reduced space requirements
- Lower energy consumption
- Reduced costs
- Faster server provisioning
- Increased server uptime
- Improved disaster recovery
- Support for legacy systems
Boot Options
- Dual Boot: Allows multiple operating systems on a single PC.
- Client-side Virtualization: A host machine hosts a virtual machine (guest).
Client-Side Virtualization
- Enables users to run VMs on their local computers.
- Allows testing of new operating systems or software.
- A host computer is the physical computer controlled by a user.
- The host operating system (HOST OS) is the operating system of the host computer.
- The guest operating system (GUEST OS) is the operating system running in the VM.
Benefits of Client-Side Virtualization
- Smaller physical footprint
- Less power and AC requirements
- Centralized management
- Lower costs
- Data protection
- Improved user experience
- Multiple operating systems on a single PC
- Enable applications not supported by HOST OS
Type 1 Hypervisors (Native)
- Used for server virtualization in data centers and cloud computing.
- Run directly on the host hardware.
- Manage resource allocation for VMs.
- Installed directly on a server.
- Examples include VMware vSphere/ESXi, Xen, and Oracle VM Server.
Type 2 Hypervisors (Hosted)
- Commonly used with client-side virtualization.
- Works with the host computer to run VMs.
- Does not require a management console.
- Examples include VMware Workstation, Windows Hyper-V, and Oracle VirtualBox.
Virtual Machine Requirements
- Specifications (processor, memory, hard disk space) vary based on the guest OS and the host OS.
Key Concepts: VM Benefits
- Partitioning: Multiple VMs on a single host.
- Isolation: VMs are isolated from each other on a shared host.
- Encapsulation: VMs are file sets with unique identifiers for easier management and backup.
- Hardware Abstraction: VMs can be moved between hosts.
9.2 Cloud Computing
- Cloud computing allows applications to be accessed over the Internet.
- Cloud computing and virtualization are different: Cloud computing separates application from hardware, virtualization separates OS from hardware.
Cloud Computing Characteristics
- Rapid Elasticity: Scaling of resources up or down based on demand.
- Resource Pooling: Shared resources dynamically assigned to consumers.
- On-Demand Self-Service: Provisioning computing capabilities on demand.
- Broad Network Access: Availability over a network.
- Measured Service: Automated resource control and reporting.
Cloud Computing Benefits
- Corporate Benefits: Pay-as-you-go for processing and storage, scalable capacity, simplified data handling.
- Lab Benefits: Easier virus/worm control in virtualized environments.
- User Benefits: Access data from anywhere, anytime
IT Principles that Form the Cloud
- Centralization: Consolidates computing, storage, network, and application resources.
- Virtualization: Allows seamless scalability and quick provisioning.
- Automation: Enables user-based self-provisioning.
- Standardization: Facilitates integration of components from multiple vendors.
Cloud Services
- Software as a Service (SaaS): Applications provided over a network.
- Platform as a Service (PaaS): Developers can build upon provided framework.
- Infrastructure as a Service (IaaS): Highly scalable, self-service cloud infrastructure.
- Anything as a Service (XaaS): Broad range of services like communications (CaaS) databases (DBaaS) or network (NaaS)
Cloud Architecture - Software as a Service (SaaS)
- Applications via internet, managed by a third-party vendor.
- Reduced installation, management, and upgrade time and cost.
- Majority of SaaS applications work directly through browsers.
Cloud Architecture - Platform as a Service (PaaS)
- Framework for developers to build and customize applications.
- Manages servers, storage, and networking; developers manage applications.
- Removes the complexity of infrastructure building and maintenance.
Cloud Architecture - Infrastructure as a Service (IaaS)
- Highly scalable computing resources provided as a service.
- Self-service access and monitoring for components (computers, networking, storage).
- Allows businesses to purchase resources on demand and as needed.
- Cloud providers extend IaaS into ITaaS (IT as a service).
Cloud Services - Virtual Desktop Infrastructure
- Provides a uniform learning environment to users.
Cloud Services - Virtual Application Stream
- Hosted solution that deploys applications (like Learning Management Systems).
- Different models (IaaS, PaaS, SaaS) offer various levels of application and infrastructure provision.
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Description
Test your knowledge on the key characteristics and benefits of cloud computing. This quiz covers essential topics such as service models, virtualization, and resource management in cloud environments. Perfect for students and professionals wanting to evaluate their understanding of cloud technologies.
