A virtual machine is a software-based computer that runs on a physical host computer or a remote server. It has its own operating system, applications, and virtual hardware devices that are configured by the user. The virtual hardware devices are backed by the physical resources of the Hypervisor, which is a software layer that manages the virtual machines and allocates the CPU, memory, network, and storage resources to them.
The configuration files of a virtual machine contain information such as the name, UUID, BIOS settings, hardware settings, and resource settings of the virtual machine. These files are stored on a datastore, which is a logical container for files and virtual disks12.
References:
* 1: VMware vSphere 7.0 Documentation - Virtual Machine Configuration Files
* 2: Cisco CCNA Certification Guide - Chapter 10: Virtualization Fundamentals

The root bridge is determined by the lowest bridge ID, which consists of the priority value and the MAC address. Because the priority values of all of the switches are not avalable, the MAC address is used to determine the root bridge. Because S3 has the lowest MAC address, S3 becomes the root bridge.

Note : Already a statement is there in last to allow SSH Traffic for network 10.20.1.0 0.0.0.127, but Second statement says deny ip any 10.20.1.0 0.0.0.255, so how it will work once it is denied. So the right answer is remove the --- no access-list 2699 deny ip any 10.20.1.0 0.0.0.255.