Which CIS Security Control includes implementing and managing a firewall on servers, where supported. Example implementations include a virtual firewall, operating system firewall, or a third$-$party firewall agent?

$1.$

CIS Security Control $1$: Inventory and Control of Enterprise Assets includes implementing and managing a firewall on servers, where supported. Example implementations include a virtual firewall, operating system firewall, or a third$-$party firewall agent.

$2.$

CIS Security Control $2$: Inventory and Control of Software Assets includes implementing and managing a firewall on servers, where supported. Example implementations include a virtual firewall, operating system firewall, or a third$-$party firewall agent.

$3.$

CIS Security Control $3$: Data Protection ncludes implementing and managing a firewall on servers, where supported. Example implementations include a virtual firewall, operating system firewall, or a third$-$party firewall agent.

$4.$

CIS Security Control $4$: Secure Configuration of Enterprise Assets and Software includes implementing and managing a firewall on servers, where supported. Example implementations include a virtual firewall, operating system firewall, or a third$-$party firewall agent.