# Problem
You've just hired an intern to help build a network at your organization's new branch office. You want to show the intern how a network system works in terms of hardware and software by visually separating the functions of such components into discrete layers. You realize the OSI Model is perfect for accomplishing this task, so you create a reference sheet showing the layers, their major functions, and some associated protocols.
Select the appropriate function of the OSI Model layer. Then, place the protocols within their associated layers.
Layers:
* Application.
* Presentation.
* Session.
* Transport.
* Network.
* Data Link.
* Physical.
Functions:
* Transforming network data into application data formats.
* Routing data around an internetwork.
* Establishing, managing, and ending data exchange.
* Transmitting and receiving bits between nodes.
* Providing an interface for software applications.
* Identifying applications and ensuring reliable data delivery.
* Transferring data between nodes on the same network segment.
Protocols:
* UDP.
* PPP.
* HTTP.
* TCP.
* ICMP.
* IP.
* DHCP.
* FTP.
* SMTP.
* Ethernet.
# Process
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# Answer
* Application - Providing an interface for software applications.
* SMTP.
* HTTP.
* FTP.
* DHCP.
* Presentation - Transforming network data into application data formats.
* Session - Establishing, managing, and ending data exchange.
* Transport - Identifying applications and ensuring reliable data delivery.
* UDP.
* TCP.
* Network - Routing data around an internetwork.
* ICMP.
* IP.
* Data Link - Transferring data between nodes on the same network segment.
* PPP.
* Physical - Transmitting and receiving bits between nodes.
* Ethernet.