Answer:
a. application layer address
Explanation:
TCP/IP network , or fully the Transmission Control Protocol/Internet Protocol, is refers to the system of internet communication protocols which us applied to connect/interconnect network devices on the internet. It makes it possible for network devices to pass packet data to the right locations on the network. TCP/IP can also be used in a private computer network (an intranet or an extranet).
An application layer address is application specific address such as email address and is not required to set up the computer on TCP/IP network.
