TCP/IP Layers

Question 1

Where actual TCP/IP protocols running at higher layers interface to the local network

Answer 1

Network interface layer

Question 2

On many TCP/IP networks, there is no TCP/IP protocol running at all on this layer, because it simply is not needed. Some protocols operating at this layer include Serial Line Internet Protocol (SLIP) and Point-to-Point Protocol (PPP).

Answer 2

Network interface layer

Question 3

Responsible for logical device addressing, data packaging, manipulation and delivery, and routing. Home to routing protocols such as RIP, OSFP, BGP, etc).

Answer 3

Internet layer

Question 4

Facilitates end-to-end communication over an internetwork.

Answer 4

Host-to-Host Transport layer

Question 5

It is in charge of allowing logical connections to be made between devices that allow data to be sent either unreliably (with no guarantee that it gets there) or reliably (where the protocol keeps track of the data sent and received in order to make sure it arrives, and resends if necessary).

Answer 5

Host-to-Host Transport layer

Question 6

It is here that identification of the specific source and destination application process is accomplished.

Answer 6

Host-to-Host Transport layer

Question 7

Key protocols at this layer are TCP and IDP.

Answer 7

Host-to-Host Transport layer

Question 8

Software applications use protocols at this layer to communicate with software applications on a destination machine

Answer 8

Application layer