Research paper and discussion

  1. Background: According to Kirk (2016), typography will have a significant role in your visualizations. You have to be careful with your text, but you must also be concerned with how the text looks. This then leads to color and functional harmony. You must provide the balance of colors in your visualizations (Kirk, 2016). The harmony of colors you select during design will impact many aspects of the overall visualization.Assignment: Write a research paper that contains the following:
    • Discuss Typography and the importance of appearance of text
    • Discuss the following color harmonies: (Usage, Pros, and Cons)
    • Complementary colors
    • Analogous colors
    • Triadic colors

    Your research paper should be at least 3 pages (800 words), double-spaced, have at least 4 APA references, and typed in an easy-to-read font in MS Word (other word processors are fine to use but save it in MS Word format). Your cover page should contain the following: Title, Student’s name, University’s name, Course name, Course number, Professor’s name, and Date.Submit your assignment on or before the due date.

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2 question just discussion

Drawn from chapter 2 of the CompTIA Cloud+ Study Guide (Montgomery, 2016).

Understanding the Hypervisor in a Virtualized Cloud

Before exploring the amazing world of virtualization technologies, you need to pause and gain an understanding of the terminology used. In this chapter, we will look at the hypervisor, the core piece of technology enabling you to virtualize a datacenter. We will then investigate the differences between hypervisors.

A hypervisor is software that enables a server to be logically abstracted and appear to the operating systems running on it as if they are running directly on the hardware itself instead of the hypervisor software. The operating systems, or in this case virtual machines (VMs), see the hypervisor as the actual computer. With virtualization, many operating systems can now run on a single server hardware platform, whereas in the past each operating system required its own physical server platform.

Type 1 and Type 2 Hypervisor Types

The Type 1 hypervisor is installed and runs directly on top of the server hardware platform. This type is referred to as either bare-metal or native hypervisors. Type 1 hypervisors are generally more advanced and offer more features than a Type 2 and are found in the cloud datacenters as well as in the enterprise. Because the Type 1 hypervisor is running directly on top of the bare-metal hardware and not as an application on another operating system, it offers much higher performance, less overhead, and more security than a Type 2 hypervisor, which we will look at next.

A Type 2 hypervisor is installed as an application on an already existing operating system and allows you to then install the VMs in the application. For example, a PC running Windows can install a Type 2 hypervisor and run it as any other application. Then, inside the hypervisor, multiple operating systems or VMs can be run. VMware workstation and VirtualBox from Oracle are examples of Type 2 hypervisors. Type 2 hypervisors are good for testing applications and in situations where dedicating a server to be virtualized is not desirable. This type of hypervisor does not offer the higher performance of a Type 1 since the Type 2 has the additional overhead of running on top of another operating system such as Windows or Linux and not directly on top of the bare-metal server hardware.

Proprietary vs. Open Source

Hypervisors can be proprietary, which is another way of telling us that they were developed and sold by private corporations such as Microsoft or VMware. Examples of proprietary hypervisors are Hyper-V developed by Microsoft and ESXi from VMware.

Open source hypervisors are free for use by the public. Open source software is in the public domain, and there are no licensing fees. A good place to find open source code is on http://www.sourceforge.net. Some examples of fully functional open source hypervisors are KVM by Red Hat, VirtualBox from Oracle, and XenServer by Citrix. They are all complete virtualization systems that allow for one or more VMs to run on the same server hardware platforms as the proprietary hypervisors. There are advantages and disadvantages to each approach. Generally proprietary hypervisors are fully supported by the vendor’s support agreements and have regular updates to add features and bug fixes. With open source, support is generally offered in community forums, with a few companies offering support agreements.

Consumer vs. Enterprise Use

While the underlying technology is similar between consumer hypervisors and those used by an enterprise or service provider, there are some significant differences. In the consumer world, a hypervisor is generally an add-on to an existing operating system running on a desktop or laptop computer. This allows us to use our PC as normal but at the same time work with and test other operating systems as VMs running on top of a Type 2 hypervisor. Many operating systems include Type 2 hypervisors as part of their releases or can be installed later as an application such as VMware workstation.
In the enterprise and cloud service provider environments, there is a great need for management, automation, and security of multiple hypervisors and virtual machines. In a large-scale deployment, there may be over 10,000 VMs in a datacenter. As you will see later, many utilities and software tools are able to manage these large environments. Also, in a cloud or corporate datacenter the hypervisor will run directly on the server as a Type 1 hypervisor.While the underlying technology is similar between consumer hypervisors and those used by an enterprise or service provider, there are some significant differences.
In the consumer world, a hypervisor is generally an add-on to an existing operating system running on a desktop or laptop computer. This allows us to use our PC as normal but at the same time work with and test other operating systems as VMs running on top of a Type 2 hypervisor. Many operating systems include Type 2 hypervisors as part of their releases or can be installed later as an application such as VMware workstation.
In the enterprise and cloud service provider environments, there is a great need for management, automation, and security of multiple hypervisors and virtual machines. In a large-scale deployment, there may be over 10,000 VMs in a datacenter. As you will see later, many utilities and software tools are able to manage these large environments. Also, in a cloud or corporate datacenter the hypervisor will run directly on the server as a Type 1 hypervisor.

Workstation vs. Infrastructure

You’ve seen that a hypervisor running on a workstation on top of an already installed operating system offers you the flexibility to run VMs as another application installed on an operating system. This comes at the cost of performance and security.

With an infrastructure- or enterprise-based hypervisor running directly on a server, you gain performance and many other advantages with this Type 1 hypervisor over the workstation-based Type 2 hypervisor. In the enterprise, many special tools have been developed for networking, security, automated deployment, monitoring, disaster recovery, and many other requirements that do not exist on the more limited desktop version.

References

Montgomery, T. (2016). CompTIA cloud study guide: Exam CV0-001. Indianapolis, IN: John Wiley & Sons. ISBN 978-1119243229

Prompt

There are several virtual machine applications currently on the market. Some of the most popular include VMWare, Hyper-V, KVM, VirtualBox, and XenServer. For this discussion, select a hypervisor or virtual machine application and research how it functions. Discuss your findings and provide at least two examples of how the system is used in business applications.

Your initial primary post must be made by Wednesday night at midnight CT (2 pts). Your responses to other students must be made by Sunday night at midnight. Support your discussion post with at least one external citation and full reference in APA format.

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