What protocols are used at 4 levels of the OSI model ?

Compare protocol and port:

What network device select the best path to route a message, based on the destination address of the packet ?

At what level of the TCP/IP model are packets formed? (Type level name)

What is a communications endpoint used by Transport Layer protocols of the Internet Protocol Suite, such as TCP and UDP.?

Which MAC address is correct? (Choose two)

How many levels does the OSI model have?

What is the use of Git?

Which DevOps principle focuses on product and service thinking?

What is the full form of Devops?