Chapter 2: To grasp the cloud-fundamental concepts

Which of the following statements are true of Type 1 hypervisors? Each correct answer represents a complete solution. Choose all that apply.

- Do not need any host OS - Run on the host's hardware

Characteristics of cloud:

- Elastic - On Demand - Always Available - Massive - Virtualized - Secure

Benefits of hypervisor

- Expanding Hardware Capabilities - Control Management - Heterogeneous Environments - Reliability and Independence

Which of the following are examples of Type 1 hypervisors? Each correct answer represents a complete solution. Choose all that apply.

- Microsoft Hyper-V - Oracle VM Server - Citrix XenServer

Which of the following statements are true about Type 1 Hypervisors? Each correct answer represents a complete solution. Choose all that apply.

- Referred to as a hardware virtualization engine - Run directly on the host's hardware and control it - Require a management console and is used in data centers

Which of the following terms are associated with hypervisors that run directly on the host hardware and control it? Each correct answer represents a complete solution. Choose all that apply.

- Type 1 - Native - Bare metal

Which of the following are examples of proprietary hypervisors? Each correct answer represents a complete solution. Choose all that apply.

- VMware's ESX/ESXi - Microsoft's Hyper-V

Virtualization is the __________ technology for the cloud. This is what enables data centers to populate tens of thousands of __________ servers and then completely automate __________ server creation, use, and deletion.

- enabling - physical - virtual

Hypervisor

A hypervisor is the technology that sits in between the physical hardware and the OS. It virtualizes the compute, storage, and networking components. Hypervisors enable multiple VMs to run on a single physical server and to be created, configured, and destroyed through a centralized control panel. There are several open-source and proprietary hypervisors products available.

Infrastructure as a Service

All the servers inside a data center, along with the networking hardware that connects these servers, are completely virtualized and consolidated into a single resource pool. This virtualized infrastructure is then offered as a service inside the enterprise for applications to be deployed and delivered to end users or as a billable service in the case of public cloud offerings.

Desktop Virtualization

Desktop virtualization or a VDI enables workstations within an enterprise to be virtualized inside a centralized data center and distribute resources based on demand. A single OS image can be used to spin up multiple VMs. Individual workstations connect to their respective VMs running inside the data center.

Which of the following properties of a cloud enables cloud tenants to spin new virtual servers on demand and on the fly?

Elastic

The __________ hypervisors run atop a host operating system already running on hardware

Hosted

Which of the following is used to allow multiple operating systems run on a single physical machine?

Hypervisor

Which of the following is a unique component of the virtualization/cloud ecosystem?

Hypervisors

Hypervisors

Hypervisors are the software, firmware, or hardware that manage the complete life cycle of a virtual machine (VM), including creation, monitoring usage, and deletion.

In which of the following services is the infrastructure virtualized, consolidated into a single resource pool, and offered as a service?

IaaS

Infrastructure

Infrastructure is every piece of hardware an enterprise or a public cloud vendor deploys within a data center.

A hypervisor offers abstraction of the operating system (OS) from the server on which it runs. Which of the following benefits of elasticity can be achieved through this?

Portability

You work as a system analyst for a company. The company has a virtualized environment which relies on specific file types, formats, and support tools. Which of the following hypervisors architectures is most likely in use?

Proprietary

A company is providing web applications to its users in a cloud environment. Which of the following cloud services is most likely used to deliver the applications?

SaaS

The service that is most likely targeted towards an end user is:

SaaS

A company named Tech Perfect Inc., provides various services through cloud. The company has recently acquired a Help-Desk platform. The company wants to provide its services to both its internal users and customers through this platform. Which of the following will the company choose to accomplish the task?

SaaS on a public cloud

Proprietary and Open-Source Hypervisors

There are a host of open-source and proprietary hypervisors available in the market. Some hypervisors started as an open-source project and later became part of a commercial solution, such as, for example, the Xen Project, from which came Citrix XenServer offerings.

Type 2 Hypervisor

These hypervisors need to be deployed on a host OS. Support for the hardware on which they run is managed through the host OS on which the hypervisor is installed. Both Type 1 and Type 2 hypervisors support running several guest OS instances.

Type 1 hypervisors

Type 1 hypervisors, also called native or bare metal hypervisors, run directly on the host's hardware and control it. They also manage guest operating systems.

Type 1 Hypervisor

Type 1 or bare metal, hypervisors implement support for the hardware they run on because they directly run on the bare hardware without the need for any host OS.

Rick works as a system administrator for Tech Perfect Inc. He has configured a local workstation to test various software within virtual machines. On the host itself, he surfs the Internet for his learning purposes. Which of the following types of hypervisors is Rick using?

Type 2

Which of the following hypervisors runs on the top of an existing operating system?

Type 2

Which of the following types of hypervisors runs atop a host operating system already running on hardware?

Type 2

Type 2 hypervisors

Type 2 hypervisors constitute a distinct second layer of software atop host operating systems. They manage and run guest operating systems at the third layer from the hardware.

Which of the following is a type 2 hypervisor?

VMware Workstation

Which of the following permits server consolidation and produces increased asset utilization with decreased data center energy needs?

Virtualization

Virtualization

Virtualization enables data centers to populate tens of thousands of physical servers and then completely automate virtual server creation, usage, and deletion.

Which of the following open-source hypervisors is perhaps the only popular-and secure- bare metal hypervisor option available today?

Xen