FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A virtual firewall is a firewall device or service that provides network traffic filtering and monitoring for virtual machines (VMs) in a virtualized environment. Like a traditional network firewall, a virtual firewall inspects packets and uses security policy rules to block unapproved communication between VMs.

Detailed explanation-2: -A virtual firewall, also known as a cloud firewall, is a virtual appliance designed to provide the same security and inspection capabilities as a physical next-generation firewall (NGFW) appliance.

Detailed explanation-3: -Like hardware firewalls, virtual firewalls grant or reject network access to traffic flows between untrusted zones and trusted zones. Unlike hardware firewalls – which are physically located on-premises in data centers – virtual firewalls are essentially software, making them ideal for securing virtual environments.

Detailed explanation-4: -Proxy Firewalls. A proxy firewall (or application-level gateway) serves as an intermediate between internal and external systems. These firewalls protect a network by masking client requests before sending them to the host.