Point-to-Point Protocol (PPP) was designed to specifically address what issue?

PPP was not created to fix a hardware flaw in telephone modems; it is a data link layer protocol concerned with framing, authentication, and link negotiation, not modem hardware design.

While PPP operates over dial-up connections, its primary purpose was not to improve speed or reliability performance metrics between users and ISPs, but rather to provide a standardized, secure, and authenticated link-layer protocol.

PPP operates at Layer 2 of the OSI model and has no relevance to personal computer hardware compatibility or web browser functionality, which are application and hardware-level concerns.

PPP was designed to address security and authentication concerns for dial-up connections to remote networks by incorporating authentication protocols such as PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol). It also added error detection, multilink support, and network layer protocol negotiation via NCP, making dial-up connections to remote networks more secure and controlled compared to its predecessor SLIP, which had no authentication mechanism.