Explanation:

- HTTPS (Hypertext Transfer Protocol Secure): It ensures secure communication over a computer network and is used widely on the internet for secure data transfer.

- DHCP (Dynamic Host Configuration Protocol): It assigns IP addresses to devices on a network, allowing them to communicate easily.

- DNS (Domain Name System): It translates domain names into IP addresses, enabling browsers to load internet resources.

- All of the above: Each protocol plays a crucial role in different aspects of internet technology, from secure communication to network management and domain resolution.

Correct Answer: Option 4 - All of the above