What is the major difference between Gateway and Router?

What is the major difference between Gateway and Router?

• A. Gateway works on different network architecture and router works on the same network architecture.
• B. Router works on different network architecture and gateway works on the same network architecture.
• C. Both function identically but in different OS.
• D. Gateway handles IP routing; router handles DNS.

Answer: (A)

The key idea here is how networks are connected and what each device actually does at the network edge. A gateway sits at the boundary between two networks that may use different architectures or protocols, and it often performs protocol translation or format conversion so signals can pass between those dissimilar networks. A router, by contrast, connects multiple networks that share the same basic protocol (typically IP) and uses routing information to forward packets between them, usually within the same broad architecture but across different subnets. So gateways bridge different network architectures, while routers interconnect networks that use the same protocol family and route traffic between them. The other options mix up roles or confuse services like DNS with routing, which isn’t what these devices do.

The key idea here is how networks are connected and what each device actually does at the network edge. A gateway sits at the boundary between two networks that may use different architectures or protocols, and it often performs protocol translation or format conversion so signals can pass between those dissimilar networks. A router, by contrast, connects multiple networks that share the same basic protocol (typically IP) and uses routing information to forward packets between them, usually within the same broad architecture but across different subnets. So gateways bridge different network architectures, while routers interconnect networks that use the same protocol family and route traffic between them. The other options mix up roles or confuse services like DNS with routing, which isn’t what these devices do.