During the Cisco Networking Academy course, administered by the undersigned instructor, the student was able to proficiently:- Explain how communication works in data networks and the Internet- Recognize the devices and services that are used to support communications across an internetwork.- Explain the role of protocols in data networks- Describe the importance of addressing and naming schemes at various layers of data networks- Describe the protocols and services provided by the application layer in the OSI model and describe how this layer operates in sample networks- Analyze the operations and features of the transport layer protocols and services- Analyze the operations and features of the network layer protocols and services and explain the fundamental concepts of routing.- Design, calculate, and apply subnet masks- Describe the operation of protocols at the data link layer- Explain the role of physical layer protocols and services- Build a simple Ethernet network using routers and switches- Use Cisco CLI commands to perform basic router and switch configuration and verification.