Annex F10 Virtualization

Question 0

Most common reasons for implementing virtualization

Answer 0

• Virtualization frees network planners from planning 1:1 AD servers, roles and services
• Fewer physical servers mean less power, HVAC support to Marines to manage and maintain
• Supports legacy applications and operating systems
• Can be used for demonstration and testing of new configurations and applications
• Great fro education, training and learning applications

Question 1

Virtualization

Answer 1

Process of implementing multiple operating systems on the same set of physical hardware IOT better utilize the hardware

Allows the network planner to run multiple operating systems independently on one computer

Question 2

Hypervisor

Answer 2

• Bare metal operating system
• Installed onto a computer as the primary OS
• Much more efficient than hosted virtualization software because it does not waste any resources of the computer
• All the resources are applied to the VMs

Question 3

Virtualization software employed by the USMC

Answer 3

VMware

• Currently the hosted software available for use is VMware Player, Workstation and Server
• Hypervisor software is ESX and ESXi

Question 4

Characteristics of a virtual server

Answer 4

• A virtual machine has no knowledge of other virtual machines on the same physical computer
• No knowledge of virtualization software-hypervisor or hosted
• Can communicate with other computers both physical and virtual using the OSI model
  
  • CPU reservations
  • Virtual RAM
  • Virtual Hard drive
  • NIC
  • CD Rom

Question 5

Benefits of the four (4) characteristics of a good network design in a virtual environment

Answer 5

• Fault tolerance: virtual servers significantly improve fault tolerance because virtual servers because virtual servers are not tied to a physical server
• Scalability: Virtualization adds a great deal of scalability to the network, if there is increased demand, more virtual servers can quickly be created by simply copying the existing virtual servers
• Quality of Service: virtualization improves QoS to the user, virtual servers can quickly be moved from one physical server to another to improve physical performance
• Security: Virtualization increases the security of the network, primary reduces the number of roles that a single server is running, reducing the vulnerability into the network from both external and internal security threats