What is the fundamental difference between a Network Switch and a Router?

1. A Switches are primarily designed for high-speed Wi-Fi broadcasting; Routers are designed for physical Ethernet cable connections in a data center.
2. B Routers are fundamentally faster pieces of hardware because they operate on specialized Application-Specific Integrated Circuits (ASICs) for packet switching.
3. C Switches connect devices within a *single* local network using MAC addresses (Layer 2); Routers connect *disparate* networks together using IP addresses (Layer 3).
4. D Switches provide the primary layer of cryptographic encryption for all internal traffic; Routers manage the unencrypted delivery of packets to the public internet.