Cloud Computing and Virtualization Flashcards
Types of Hypervisor and features
- Type 1 or bare metal: installed on hardware without a host OS. Provides better performance and efficiency and it is used in enterprise and server environment. Example: VMware ESXi, Microsoft Hyper-V
- Type 2 (hosted): Installed on top of OS as an application. Easier to setup and ideal for personal use or testing environment. Examples: VMware Workstation, and Oracle VirtualBox.
Client-side virtualization
runs directly on “ordinary” desktops and workstations and allows users to interact with virtual environments. Examples: Sandbox, legacy software support, cross-platform virtualization, training labs.
Sandbox
isolated environments to test malware like viruses, worms, and Trojans. Sandboxes can be used to prevent malware from affecting the host system or network.
Legacy Software Support
Runs older operating systems to use outdated software.
Cross-platform Virtualization
Test software across different OSs and hardware constraints.
Training labs
Provides resettable environments for student practice without affecting production systems.
Server-side virtualization
Hosts virtual servers on physical hardware, optimizing resource usage.
Application Virtualization
means that the client access the application from the server or streams the application from the server for local processing. Benefit is that the application has the latest updates and codes.
Container Virtualization
Containers share the host OS but isolate applications. there is no need for hypervisor.
VM sprawl
Uncontrolled creation of VMs which leads to unmanaged and vulnerable systems.
Rogue VMs
unauthorized VMs that could introduce malware or unauthorized access.
VM escaping
attack against a virtualization platform where malware running in a VM is able to communicate with the hypervisor or host kernel or jump to another guest.
