The application layer (layer 7) is responsible for file transfer operations.
Application layer
POP
Session layer
data link layer
Layer 3-7
3
socket layer is a interface between sender server and the receiving server
Application layer protocols: DNS and HTTP Transport layer protocols: UDP for DNS and TCP for HTTP
application layer is privide connectionless server
If the client doesn't know the IP address of the desired web server it has to find that out. This can be done via DNS if you know the name of the server as part of the URL. After the address is located then transfer takes place using HTTP protocol. This is a layer 7 (application layer) protocol.
papillary layer is responsible for fingerprints
Reverse ARP is used to Obtain IP address from a Server(responsible for IP addresses allocation) by providing its layer 2 (MAC) address.
since it is a server it would be at your phyiscal layer, or if you are taling about the FTP service then that will be at the applaction level.