Application Layer Throughput functions:

1. Ensures that the receiving device is identified, reachable and ready to accept data
2. When appropriate, enables authentication between devices for an extra layer of network security
3. Makes sure necessary communication interfaces exist, such as whether there is an Ethernet or Wi-Fi interface in the sender's computer
4. Ensures agreement at both ends on error recovery procedures, data integrity and privacy
5. Determines protocol and data syntax rules at the application level
6. Presents the data on the receiving end to the user application

Application Layer Throughput functions:

1. Ensures that the receiving device is identified, reachable and ready to accept data
2. When appropriate, enables authentication between devices for an extra layer of network security
3. Makes sure necessary communication interfaces exist, such as whether there is an Ethernet or Wi-Fi interface in the sender's computer
4. Ensures agreement at both ends on error recovery procedures, data integrity and privacy
5. Determines protocol and data syntax rules at the application level
6. Presents the data on the receiving end to the user application