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Questions and Answers
Which of the following are benefits of virtualization? (Select all that apply)
Which of the following are benefits of virtualization? (Select all that apply)
- Increases costs
- Increases complexity
- Reduces deployment time (correct)
- Optimizes utilization of IT resources (correct)
What is virtualization?
What is virtualization?
The logical abstraction of physical resources that enables multiple instances of systems or resources to support a single instance.
The virtual layer only includes virtualization software.
The virtual layer only includes virtualization software.
False (B)
What are the two characteristics of cloud infrastructure that the virtual layer fulfills?
What are the two characteristics of cloud infrastructure that the virtual layer fulfills?
What is a hypervisor?
What is a hypervisor?
Match the types of hypervisors with their characteristics:
Match the types of hypervisors with their characteristics:
Study Notes
Virtual Layer
- Virtualization is the logical abstraction of physical computing resources including compute, network and storage resources
- Enables a resource to appear larger or smaller than it actually is
- It enables a multitenant environment to improve the utilization of physical resources
- Benefits include optimized utilization, reduced cost and complexity, faster deployment and more flexibility
- The virtual layer enables the resource pooling and rapid elasticity characteristics of cloud infrastructure
- The virtual layer contains virtualization software, resource pools, and virtual resources
Virtualization Process and Operations
- Virtualization software deployed on:
- Compute systems
- Network devices
- Storage devices
- Create resource pools from:
- Processing power and memory
- Network bandwidth
- Storage
- Create virtual resources such as
- Virtual machines
- Virtual networks
- LUNs (Logical Unit Number)
Compute Virtualization Software
- A hypervisor is software installed on a compute system to enable multiple operating systems (OS) to run concurrently
- The hypervisor kernel acts like an OS kernel designed to run multiple VMs concurrently
- Each VM is assigned a Virtual Machine Manager (VMM) which abstracts hardware
Types of Hypervisors
- Bare-metal hypervisor:
- Installed on bare-metal hardware, an OS
- Requires certified hardware
- Suitable for enterprise data centers and cloud infrastructure
- Hosted Hypervisor:
- An application installed on an OS
- Relies on the OS, running on physical machines for device support
- Suitable for development, testing, and training purpose
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Description
This quiz covers the fundamentals of virtualization, including the logical abstraction of physical computing resources, the virtualization process, and the creation of virtual resources. Explore how virtualization enhances resource utilization in cloud environments and learn about the software and components involved in virtualization.
