How many levels does the OSI model have?

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

What network device select the best path to route a message, based on the destination

address of the packet ?

What is network media?

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)

What is the name of the physical address on the network interface?

How many level does the TCP/IP model have?

Compare protocol and port: