Match each enterprise address translation requirement or descriptor on the left with the corresponding Network Address Translation (NAT) implementation type or address classification on the right.
- Providing permanent, bi-directional inbound accessibility to an internal server residing on a private subnet using a fixed one-to-one IP mapping.Static NAT
- Allowing hundreds of internal workstations to establish outbound internet connections simultaneously over a single public IP by tracking unique ephemeral Layer 4 source ports.Port Address Translation (PAT / NAT Overload)
- Assigning an internal host a temporary public IP address from a pre-configured, bounded address pool on a first-come, first-served basis for the duration of its session.Dynamic NAT
- The public IPv4 address assigned to represent an internal private host to external entities on the public internet.Inside Global Address
Answer
The correct matches are: 1. Permanent bi-directional inbound accessibility matches Static NAT; 2. Multiple workstations sharing a single public IP via Layer 4 source ports matches Port Address Translation (PAT / NAT Overload); 3. Assigning a temporary public IP from a pre-configured pool matches Dynamic NAT; 4. The public IPv4 address assigned to represent an internal host externally matches Inside Global Address.
Each NAT mechanism serves specific architectural requirements: Static NAT maintains a 1-to-1 static mapping for inbound services; PAT (Overload) multiplexes multiple private IPs across one public IP by translating Layer 4 source ports; Dynamic NAT allocates public IPs dynamically from a pool on a 1-to-1 basis; and Inside Global refers specifically to the translated public address representing an inside device to the outside world.
Step-by-Step Solution
Key Concept
NAT/PAT Implementation Types and CompTIA Network Address Classifications