Example Concept: SNAT is commonly used in scenarios where internal devices need to access external networks, such as the internet, by using a public IP address assigned to a NAT device. This helps in conserving public IP addresses and provides a level of security by hiding internal IP addresses. DNAT is often employed in port forwarding or load balancing, where incoming requests to a public IP are redirected to specific internal servers, allowing external users to access services hosted within a private network.