Networking and Operating Systems

Network+,  Lesson 6.1: Transport and Application Layer Protocols – TestOut

Exam Objectives Covered: 

  • 1.4 Explain common networking ports, protocols, services, and traffic types. 
  • 5.5 Given a scenario, use the appropriate tool or protocol to solve networking issues. 

Links:

Overview:

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:

  1. Access the TestOut Courseware through the provided link.
  2. 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