Here are the top 15 most commonly used protocols in computer networking:
Internet Protocol (IP)
Transmission Control Protocol (TCP)
User Datagram Protocol (UDP)
Hypertext Transfer Protocol (HTTP)
Simple Mail Transfer Protocol (SMTP)
File Transfer Protocol (FTP)
Domain Name System (DNS)
Dynamic Host Configuration Protocol (DHCP)
Secure Shell (SSH)
Internet Control Message Protocol (ICMP)
Address Resolution Protocol (ARP)
Simple Network Management Protocol (SNMP)
Border Gateway Protocol (BGP)
Routing Information Protocol (RIP)
Open Shortest Path First (OSPF)
These protocols are widely used for different purposes, such as transmitting data over networks, accessing web pages, sending and receiving email, transferring files, and managing network devices.