NAT Types and Use Cases
Cisco CCNA 200-301 PBQ
Match static NAT, dynamic NAT, and PAT (NAT overload) to their descriptions, use cases, and deployment characteristics for IPv4 address translation.
Some options will have multiple correct answers.
Requires a dedicated public IP for each internal host
Ideal for hosting servers or devices requiring a fixed public IP
Automatically assigns a public IP from the pool when traffic is initiated
Conserves public IPs compared to static NAT but limited by pool size
Commonly deployed in small offices and home routers to preserve IPv4 addresses
Many-to-many mapping using a pool of public IP addresses
One-to-one mapping between a private and public IP address
Supports multiple concurrent sessions by differentiating ports
Many-to-one mapping using port numbers on a single public IP
Static NAT
Dynamic NAT
PAT (NAT overload)