Elements and Performance Criteria
- Describe the operation of data networks
- Describe the purpose and functions of various network elements
- Use the open system interconnections (OSI) and transmission control protocol or internet protocol (TCP/IP) models to explain how data flows in a network
- Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models
- Identify and correct common network problems at layers 1, 2, 3 and 7 using a layered model approach
- Implement a small switched network
- Select the appropriate media, cables, ports, and connectors to connect switches to other network devices and hosts
- Explain network segmentation, basic traffic management and basic switching concepts
- Perform, save and verify initial switch configuration tasks
- Verify network status and switch operation using basic utilities
- Implement and verify basic security for a switch
- Implement an IP addressing scheme and IP services to meet network requirements
- Describe the need and role of addressing in a network
- Create and apply an addressing scheme to a network
- Assign and verify valid IP addresses to hosts, servers and networking devices in a local area network (LAN) environment
- Describe the operation and benefits of using private and public IP addressing
- Implement static and dynamic addressing services for hosts in a LAN environment
- Enable network address translation (NAT) for a small network with a single internet service provider (ISP) and connection and verify operation
- Configure dynamic host configuration protocol (DHCP) and domain name system (DNS) operation on a router
- Implement a small routed network
- Select the appropriate media, cables, ports, and connectors to connect routers to other network devices and hosts
- Describe basic routing concepts
- Perform, save and verify basic router configuration tasks
- Configure and verify a classless routing protocol
- Verify device configuration and network connectivity using basic utilities
- Implement password and physical security
- Implement and verify WAN links
- Troubleshoot a small enterprise branch network