Client Side Virtualization
What is Client-side virtualization
Client-side virtualization enables a host OS to provide a virtual environment within which a guest OS can be installed and be operational as an actual OS.
What are some advantages to PC virtualization?
Benefits of virtualization include cost savings, the use of multiple operating systems on a single PC, and isolation for software testing.
What is a Measured and Metered Cloud Service?
Cloud systems provide service performance measurements that can be used to automatically control and optimize resources using a metering mechanism. Metering can be used to set thresholds to ensure that a customer is always provided with satisfactory service levels. Measured and metered services also provide reports for both the provider and service consumer.
How do you run a program that is not supported by your operating system?
The application cannot be installed if the operating system does not support it. It is necessary in this case to create a virtual machine with an operating system, as the guest OS, that supports the application.
What is On-Demand Cloud Service?
Individuals can provision or make changes to computing services as needed without requiring human interaction with the service provider.
What is Rapid Elasticity?
Services can be provisioned when needed and then released very quickly when no longer required. In some cases, the demand can be met and scale automatically based on the user demand.
What is Dual Boot?
The dual boot configuration will provide an option to run either OS (but not both at the same time). Just using two disks is not a sufficient solution to run two separate OS.
What are the advantages of moving to a “Cloud based” server?
Cloud computing offers many advantages to the company. Since the cloud data storage and processing facilities are owned by third-parties, the company does not need to be concerned about how it will handle increasing data storage and processing demands with its own data center equipment. The company can easily increase or decrease processing power and storage capacity based on need. Also, cloud services are billed by usage, so the company does not have the costs of supporting its own expensive data center that is not always used to maximum capacity.
What are the characteristics of Cloud Computing?
Cloud computing allows users to access applications, back up and store files, and perform tasks without needing additional software or servers. Cloud users access resources through subscription-based or pay-per-use services, in real time, using nothing more than a web browser.
What does hypervisor do?
A hypervisor is a key component of virtualization.
A hypervisor is often software-based and is used to create and manage multiple VM instances.
What is a Virtual Application Stream / Cloud-based Applications?
Organization are using cloud-based applications to provide on-demand software delivery. For example, Microsoft Office365 provides online versions of Microsoft Word, Excel, and PowerPoint. When a user requests an application, minimal application code is forwarded to client. The client pulls additional code from the cloud server as required. For offline use, the application may be saved locally on the host.
What is a Private Cloud?
Private clouds are dedicated to an organization or entity. Examples, of organizations that use private clouds include service providers, financial institutions, healthcare providers, and more. A private cloud can be created using the organization's private network. However, this can be expensive to build and maintain. A private cloud can also be managed by an outside organization with strict access security.
Private Clouds
o Use privately shared virtualized resources
o Support one customer (the organization)
o Secure highly sensitive information
What are the advantages of Virtualization over the traditional one server for every service needed?
Traditionally, one server was built within one machine with one operating system. This server required power, a cool environment, and a method of backup. Virtualized servers require more robust hardware than a standard machine because a computer or server that is in a virtual machine commonly shares hardware with one or more servers and operating systems. By placing multiple servers within the same physical case, space is saved. Virtualized systems still need the proper licenses for operating systems or applications or both and still need the proper security applications and settings applied.
Why would you use a Virtual Machine to test security against worms and viruses?
Virtualization can create a controlled environment that is isolated from external networks. Because of shared system resources, the performance inside a virtual environment will not be faster. However, the benefit is that a virtual environment provides a safe platform for information security analysis.
What is Software as a Service (SaaS) ?
Software as a Service (SaaS) allows a business to host an application through a Cloud provider. The Cloud provider manages access to the application and maintains the application. The application can be utilized by any authorized device with an Internet connection.
What is Windows Compatibility mode?
Windows Compatibility mode will only allow an application to run as long as it is supported by the Windows operating system. It lets you run older Windows program on new versions of Windows.
What is Virtual desktop infrastructure (VDI) ?
Virtual desktop infrastructure (VDI) can be used to deploy entire desktop environments from a server in a data center to clients. VDIs can be persistent, which provides the user with a customizable image that is saved for future use, or non-persistent, which reverts the image back to its initial state when a user logs out.
What is a Public Cloud?
These are cloud-based applications and services offered in a public cloud and made available to the general population. Services may be free or are offered on a pay-per-use model, such as paying for online storage. The public cloud uses the Internet to provide services. Public clouds are the most common for users. Examples of public cloud services include Gmail, Box, Dropbox, Netflix, and Apple Music.
Public CLouds:
o Use shared virtualized resources
o Support multiple customers
o Support Internet connectivity
How does virtualization help with disaster recovery?
Live migration allows moving of one virtual server to another virtual server that could be in a different location that is some distance from the original data center.
What are the features of Cloud Computing?
Cloud computing allows organizations to eliminate the need for on-site IT equipment, maintenance, and management. Cloud computing allows organizations to expand their services or capabilities while avoiding the increased costs of energy and space.
What is Platform as a Service (PaaS)?
Platform as a Service (PaaS) – The cloud provider provides access to operating systems, development tools, programming languages, and libraries used to develop, test, and deliver applications.
What are the characteristics of Type 1 hypervisor?
Type 1 hypervisors are installed directly on a server and are known as "bare metal" solutions giving direct access to hardware resources. They also require a management console and are best suited for enterprise environments.
What are the characteristic of a Type 2 hypervisor?
Type 2 hypervisors are hosted on an underlaying operating system and are best suited for consumer applications and those experimenting with virtualization. Unlike Type 1 hypervisors, Type 2 hypervisors do not require a management console and do not have direct access to hardware.
What is a Community Cloud?
A community cloud is created for exclusive use by specific entities or organizations. The differences between public clouds and community clouds are the functional needs that have been customized for the community. For example, healthcare organizations must remain compliant with policies and laws (e.g., HIPAA) that require special authentication and confidentiality. Community clouds are used by multiple organizations that have similar needs and concerns. Community clouds are similar to a public cloud environment, but with set levels of security, privacy, and even regulatory compliance of a private cloud.
Are Cloud computing and virtualization the same thing?
Why or Why Not
Although the terms cloud computing and virtualization are often used interchangeably, they actually mean two different things. Virtualization is a component within cloud computing that separates the operating systems from the underlying hardware, whereas cloud computing separates the application from the hardware.
What type of hypervisor would be used in a data center?
Type 1 hypervisors are usually used on enterprise servers.
Define the following:
Hybrid cloud
Community cloud
Private cloud
Public cloud
Public cloud services are made available to the general population.
Private cloud services are intended for a specific organization or entity.
A custom cloud is built to meet the needs of a specific industry.
A hybrid cloud is made up of two or more clouds that are connected via a single architecture.
What is the difference between Cloud computing and virtualization?
Cloud computing separates the application from the hardware. Virtualization separates the OS from the underlying hardware.
What is Infrastructure as a Service (IaaS)?
Infrastructure as a Service (IaaS) - The cloud provider manages the network and provides organizations access to network equipment, virtualized network services, storage, software, and supporting network infrastructure. There are many advantages for organizations to adopt IaaS.
What is a Hybrid Cloud?
A hybrid cloud is made up of two or more different cloud types (example: part private, part public), where each part remains a distinctive object, but both are connected using a single architecture. Organizations may use a private cloud for confidential information and a public cloud for general, customer-facing content.