Cloud Computing Concepts Quiz

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Questions and Answers

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?

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?

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?

Virus and worm attacks can be more easily controlled. Signup and view all the answers

Which statement accurately reflects a characteristic of cloud computing's service model?

Resource usage can be monitored and optimized automatically. Signup and view all the answers

What is the primary function of a host machine in relation to virtual machines?

To allocate system resources that allow virtual machines to operate. Signup and view all the answers

Which statement accurately describes Type 1 hypervisors?

They manage multiple virtual machines directly on the hardware of a host machine. Signup and view all the answers

What benefit does client-side virtualization provide users?

It enables testing of new operating systems and running older software. Signup and view all the answers

Which of the following is NOT a characteristic of Type 2 hypervisors?

They require hardware-based virtualization support. Signup and view all the answers

How does client-side virtualization enhance user experience?

By enabling local execution of applications within the virtual machines. Signup and view all the answers

What is the main purpose of a hypervisor in server virtualization?

To create and manage virtual machines Signup and view all the answers

Which of the following is NOT an advantage of server virtualization?

Increased single-point of failure Signup and view all the answers

How does cloud computing differ from traditional server deployment?

Cloud computing is managed by service providers Signup and view all the answers

Which type of virtualization occurs when a host machine uses its own system resources?

Client-side virtualization Signup and view all the answers

What is a characteristic of a public cloud?

Available to the general public Signup and view all the answers

What is a common disadvantage of traditional server deployment?

Wasted resources Signup and view all the answers

Which of the following best describes the relationship between virtualization and cloud computing?

Virtualization is the foundation that supports cloud computing. Signup and view all the answers

What is the function of a Boot Loader in a dual boot system?

To choose between multiple operating systems at boot time Signup and view all the answers

What does UCaaS provide to customers?

All communication services over the Internet Signup and view all the answers

Which service is primarily focused on managing databases in the cloud?

DBaaS Signup and view all the answers

What characterizes SaaS in regard to client applications?

Clients get a ready-to-use application hosted in the cloud Signup and view all the answers

In what way does PaaS benefit application developers?

It offers a development environment with infrastructure and software Signup and view all the answers

Which of the following statements is true regarding virtualization?

It provides a uniform environment for all users. Signup and view all the answers

What is the minimum memory requirement for running Hyper-V on Windows 10?

4GB Signup and view all the answers

Which operating systems can host Hyper-V?

Windows 10 Pro Signup and view all the answers

What feature must the processor support for Hyper-V to function on Windows 10?

Second Level Address Translation (SLAT) Signup and view all the answers

What does encapsulation in virtualization provide?

Simplified backup and modification of VMs Signup and view all the answers

What is the minimum hard disk space requirement for each virtual OS in Windows Virtual PC?

15GB Signup and view all the answers

How does cloud computing differ from virtualization?

Cloud computing separates applications from hardware, while virtualization separates OS from hardware. Signup and view all the answers

Which of the following is a benefit of partitioning in virtualization?

Isolation of VMs from each other Signup and view all the answers

What BIOS feature is necessary for Hyper-V to function on Windows 8?

BIOS-level Hardware Virtualization support Signup and view all the answers

What is a key benefit of Platform as a Service (PaaS)?

Helps in developing applications without managing infrastructure Signup and view all the answers

Which of the following is NOT a characteristic of Infrastructure as a Service (IaaS)?

Requires physical hardware ownership Signup and view all the answers

What does XaaS stand for?

Anything as a Service Signup and view all the answers

Which of the following platforms is an example of PaaS?

OpenShift Signup and view all the answers

How does IaaS differ from traditional IT infrastructure?

IaaS resources are available on a pay-as-you-go basis Signup and view all the answers

Which statement best describes the scalability of PaaS?

Resources can be increased or decreased easily Signup and view all the answers

Which of the following services is typically included in an IaaS model?

Virtualized compute resources Signup and view all the answers

What is a common feature of Anything as a Service (XaaS)?

Subscription-based purchasing of various services Signup and view all the answers

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.