Which two methods are supported by the web proxy auto-discovery protocol (WPAD) to automatically learn the URL where a PAC file is located? (Choose two.)

WPAD utilizes DHCP by querying DHCP servers for option 252 (or similar) which provides the URL of the PAC file, allowing clients to automatically discover the proxy configuration.

BOOTP is an older network protocol that predates and is distinct from the primary mechanisms (DHCP and DNS) used by WPAD for proxy auto-discovery.

WPAD can perform DNS queries to locate the PAC file, typically by attempting to resolve hostnames like `wpad.<local_domain>` to find the PAC file server.

IPv6 autoconfiguration (SLAAC) is primarily used for stateless IP address assignment and does not inherently provide mechanisms for distributing web proxy auto-configuration (PAC) file URLs.