Answer:
In my everyday scenario, I am uploading a photo to a social media website. The data type in this scenario is a digital image file.
Physical Layer: The data begins at my computer, where the photo is stored on my hard drive. The data is then sent through the Ethernet cable that connects my computer to my router.
Data Link Layer: The data is then passed to the Data Link Layer, where it is divided into smaller units called frames. The Address Resolution Protocol (ARP) is used to determine the MAC address of the destination device.
Network Layer: The frames are then passed to the Network Layer, where they are assembled into packets. The Internet Protocol (IP) is used to determine the IP address of the destination device. The Internet Control Message Protocol (ICMP) is used to provide feedback about the status of the packets.
Transport Layer: The packets are then passed to the Transport Layer, where they are assembled into segments. The Transmission Control Protocol (TCP) is used to ensure that the segments are delivered reliably and in the correct order.
Session Layer: The segments are then passed to the Session Layer, where they are organized into sessions. The Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols may be used to encrypt the data and ensure its privacy.
Presentation Layer: The sessions are then passed to the Presentation Layer, where they are translated into a format that can be understood by the application.
Application Layer: The data is finally passed to the Application Layer, where it is used by the social media website's application. The Domain Name System (DNS) is used to translate the website's domain name into an IP address. The File Transfer Protocol (FTP) is used to transfer the photo from my computer to the website's server. The Hypertext Transfer Protocol (HTTP) is used to communicate between the application and the server.
Step-by-step explanation:
Slide 1: Introduction
Brief overview of scenario: uploading a photo to a social media website
Explanation of OSI model and its 7 layers
Slide 2: Physical Layer
Description of hardware involved: computer, Ethernet cable, router
Explanation of how data is transferred through the Physical Layer
Slide 3: Data Link Layer
Description of services and protocols used: ARP, OSPF, L2TP, PPP
Explanation of how data is divided into frames and passed to the Network Layer
Slide 4: Network Layer
Description of services and protocols used: IP, ICMP, IGMP, IPsec
Explanation of how frames are assembled into packets and passed to the Transport Layer
Slide 5: Transport Layer
Description of services and protocols used: TCP, TLS/SSL, UDP
Explanation of how packets are assembled into segments and passed to the Session Layer
Slide 6: Session, Presentation, and Application Layers
Description of services and protocols used: DHCP, DNS, FTP, HTTP, SMTP, Telnet, IMAP
Explanation of how data is organized and translated, and finally used by the application.
Slide 7: Conclusion
Summary of how data moves through the OSI model in this scenario
Importance of understanding the OSI model for effective communication and data transfer over networks.