You have seen how IP provides addressing and delivery at layer 3 of the OSI model. At layer 4, the TCP/IP protocol suite also defines how different applications on separate hosts establish connections and track communications. Understanding how application protocols use ports to establish connections is critical to being able to configure and support network services.
Text Lessons:
6.1.1 Transport Layer Ports and Connections
6.1.2 Transmission Control Protocol
6.1.3 TCP Handshake and Teardown
6.1.4 User Datagram Protocol
6.1.5 netstat
6.1.6 Common TCP and UDP Ports
Text and Video Lessons:
6.1.5 Netstat (8:17 minutes)
Lab/Activity:
6.1.7 Lab: Explore Three-way Handshake in Wireshark
6.1.8 Lab: View Open Ports with netstat
Quiz/Assessment:
6.1.9 Lesson Review (15 questions)
Topics Discussed:
What is the function of a Transport layer port?
What is the difference between connectionless and connection-oriented services?
How does TCP differ from UDP?
What tools can be used to investigate Transport layer connections?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 6.1: Transport and Application Layer Protocols and complete the 6.1.7 Lab: Explore Three-way Handshake in Wireshark , 6.1.8 Lab: View Open Ports with netstat, and the 15 question 6.1.9 Lesson Review Exam to complete the Section.
Assigned: April 17th, 2025 Teacher Pacing Due Date: April 21st, 2025
Troubleshooting issues with routing and VLANs can be a daunting challenge, so it is important to understand the basic principles of how hosts and routers apply route selection logic to forward packets. You should also be able to use diagnostic tests methodically to establish the scope and likely cause of an issue.
Text Lessons:
5.7.1 Routing Table Issues
5.7.2 Default Route and Routing Loop Issues
Text and Video Lesson:
5.7.3 VLAN Assignment Issues (7:09 minutes)
Quiz/Assessment:
5.7.4 Lesson Review (10 questions)
Topics Discussed:
How do I apply route selection logic with information in routing tables to diagnose the cause of forwarding problems?
How can VLAN assignment cause network communication problems?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 5.7: Routing and VLAN Troubleshooting, and complete the 10 question 5.7.4 Lesson Review Exam to complete the Section.
Assigned: April 14th, 2025 Teacher Pacing Due Date: April 15th, 2025
Most networks make use of virtual LANs (VLANs), both to improve network security and network performance, so they are an important concept for you to understand. In this topic, you will identify the benefits of network segmentation and the characteristics and functions of VLANs.
Text Lessons:
5.6.4 Tagged and Untagged Ports
5.6.5 Voice VLANs
5.6.6 Default VLAN and Native VLAN
5.6.7 VLAN Routing
Text and Video Lessons:
5.6.1 Virtual LANs and Subnets (2:51 minutes)
5.6.2 Virtual LAN IDs and Membership (12:09 minutes)
Ethernet, switching, and IP routing are the principal technologies used to implement cabled local networks. There are many types and sizes of network, however, and many different ways of designing cabling and forwarding to suit the requirements of large and small organizations and budgets. While you might not be responsible for network design at this stage of your career, it is important that you be able to identify the components and advantages of the tiered network hierarchies used to implement complex local networks.
Text Lessons:
5.5.1 Hybrid Topology
5.5.2 Three-Tiered Network Hierarchy
Lab/Activity:
5.5.3 Compare Three-tier Hierarchical Model
5.5.4 Lab: Create a Three-tier Network
Quiz/Assessment:
5.5.5 Lesson Review (5 questions)
Topics Discussed:
What is a corporate datacenter?
What does the core switch do?
How do the distribution and access layer switches work?
What is the access layer switch?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 5.5: Enterprise Network Topologies, and complete the 4 question 5.5.3 Compare Three-tier Hierarchical Model Activity, the 5.5.4 Lab: Create a Three-tier Network and the 5 question 5.5.5 Lesson Review Exam to complete the Section.
Assigned: April 9th, 2025 Teacher Pacing Due Date: April 10th, 2025
When a private network is connected to public ones, traffic between the private and public zones needs to be subject to rules. This filtering role is performed by a firewall. Firewalls apply access controls to ensure authorized use of the network. They perform a filtering function to analyze the properties of connection requests and then allow, deny, and/or log them as appropriate. While you may not be installing and configuring these devices at this stage in your career, it is important that you understand their use on the network edge.
Text Lessons:
5.4.1 Firewall Uses and Types
Text and Video Lessons:
5.4.2 Firewall Selection and Placement (7:50 minutes)
Quiz/Assessment:
5.4.3 Lesson Review (5 questions)
Topics Discussed:
How is a packet filtering firewall different from a circuit-level gateway?
Why is a packet filtering firewall a stateless device?
What devices and software can implement firewall functionality?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 5.4: Firewalls , and complete the 5 question 5.4.3 Lesson Review Exam to complete the Section.
Assigned: April 7th, 2025 Teacher Pacing Due Date: April 9th, 2025
As well as understanding the different types of routing algorithms, you must be able to install routing devices to an appropriate place in the network. This lesson will help you to understand the role of routers placed at the network edge or perimeter. On IPv4 networks, this role involves the use of Network Address Translation (NAT) to manage communications between public and private address schemes.
Why is there a requirement for network address translation?
What is the difference between static NAT and dynamic NAT?
What is port forwarding?
What is the difference between NAT and PAT?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 5.3: Network Address Translation, and complete the 5.3.4 Lab: Configure NAT and the10 question 5.3.5 Lesson Review Exam to complete the Section.
Assigned: April 2nd, 2025 Teacher Pacing Due Date: April 4th, 2025
Complex networks need to exchange routing information rapidly to prevent outages, making static routing updates impractical in most cases. This issue is solved by implementing dynamic routing protocols. In this topic, you will compare these protocols to understand the features that make them more or less appropriate for different networks. .
Text Lessons:
5.2.1 Dynamic Routing Protocols
5.2.2 Routing Information Protocol
5.2.3 Enhanced Interior Gateway Routing Protocol
5.2.4 Open Shortest Path First
5.2.5 Border Gateway Protocol
5.2.6 Route Selection
Quiz/Assessment:
5.2.7 Lesson Review (10 questions)
Topics Discussed:
What is the difference between static and dynamic routing?
What network link characteristics are used to determine route selection?
What are the most common routing protocols? Which protocol is best for each situation?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 5.2: Dynamic Routing Technologies, and complete the 10 question 5.2.7 Lesson Review Exam to complete the Section.
Assigned: March 27th, 2025 Teacher Pacing Due Date: March 28th, 2025
Routers support internetworks of all sizes and types. It is critical for a network professional to understand the process a router applies to make forwarding decisions. In this lesson, you will examine routing tables and how they are used to select a forwarding path. You will also learn to use command line tools to report and test the routing configuration.
Text Lessons:
5.1.1 Routing Tables and Path Selection
5.1.2 Static and Default Routes
5.1.3 Routing Table Example
5.1.4 Packet Forwarding
5.1.5 Fragmentation
5.1.6 Router Configuration
5.1.7 Routing Table Tools
Text and Video Lessons:
5.1.8 tracert and traceroute (2:47 minutes)
Lab/Activity:
5.1.9 Lab: Install an Enterprise Router
5.1.10 Lab: Cisco Troubleshooting Tools
Quiz/Assessment:
5.1.11 Lesson Review (10 questions)
Topics Discussed:
What is the function of a routing table?
What information is contained in routing table entries?
What are directly connected, static, and default routes?
What are the uses of route, show route, tracert, and traceroute tools?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 5.1: Routing Technologies, and complete the 5.1.9 Lab: Install an Enterprise Router, 5.1.10 Lab: Cisco Troubleshooting Tools, and the 10 question 5.1.11 Lesson Review Exam to complete the Section.
Assigned: March 24th, 2025 Teacher Pacing Due Date: March 26th, 2025
