Virtualization

What is a sandbox environment

An environment you can test new updates or software to check for vulnerabilities or errors, as well as test malware outside of the main network to prevent messing anything up

What is the best way to test a new application feature

Create a virtual machine as a sandbox specifically to test the feature

What features make virtual machines well-suited for testing new software

1. Ability to revert back to a previous state

2. Support for software compatibility checks across all OS setups

What is the primary purpose of application virtualization

To run software without installing it directly

How would you run software designed for Windows XP on a Windows 11 host

Install Windows XP virtual machine on the current system

What is the primary advantage of using cross-platform virtualization

Enabling software to run on an unsupported operating system

What is cross platform virtualization

Using a virtual machine with a different OS than the host

What security best practice helps limit the potential impact of a compromised VM on other VMs and the host

Ensuring proper isolation between VMs

What is a common method for managing access and permissions within a virtualized infrastructure

Utilizing the access control features of the hypervisor

What helps with known security vulnerabilities on VMs

Keeping the hypervisor up to date

What are the features of a VM in a bridged networking configuration

1. The VM’s network adapter is connected directly to the physical network through the host’s network interface

2. The VM can communicate directly with all other devices on the physical network and the Internet, just like any other physical machine

3. The VM obtains its TCP/IP configuration settings directly from the DHCP server on the physical network

What are the features of a VM in a shared networking configuration

1. The VM receives its TCP/IP configuration settings from a virtual DHCP server managed by the hypervisor

2. The VM uses the IP address of the host machine for outbound communication via NAT

3. The VM’s private address is not advertised on the LAN preventing direct inbound connections

What are critical factors for storage performance in a virtualized environment

High IOPS and Low latency

What is the benefit of using SSDs in virtualized environments

Fast read/write speeds

What is a virtualization platform used to deliver virtual desktops to multiple users

VDI

What is a portable package containing an app and everything it needs to run

A container

What is a Type 1 hypervisor

1. Installed directly on the hardware

2. require a remote management console

3. minimal overhead

4. used in data centers and servers

What is a Type 2 hypervisor

1. Relies on host OS for hardware access and management

2. Oracle VirtualeBox, VMware Workstation, VMware Player

3. Used for client side virtualization

4. Higher overhead and lower performance

5. Isolated environment separate from host OS