Organizations with large networks need to divide those networks up into smaller segments to improve performance and security. A network segment is represented at the Network layer by a subnet. Additionally, IPv4 uses a system of public versus private addressing that determines how hosts and networks can connect over the Internet. Understanding the features of these addressing schemes will be essential to your career in network support.
Text Lessons:
4.3.1 Classful Addressing
4.3.3 Other Reserved Address Ranges
4.3.4 IPv4 Address Scheme Design
4.3.5 Classless Inter-Domain Routing
4.3.6 Variable Length Subnet Masks
Text and Video Lessons:
4.3.2 Public vs Private Addressing (1:16 minutes)
Lab/Activity:
4.3.7 Lab: Configure IP Networks and Subnets
Quiz/Assessment:
4.3.8 Lesson Review (10 questions)
Topics Discussed:
What is the original classful IPv4 addressing scheme, and how is it relevant to modern networks?
Which address ranges are available for use on the public Internet, and which are reserved for private networks or other purposes?
How can classless addressing summarize network addresses and allow for networks with different-sized subnets?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 4.3: IP Version 4 Subnetting, and complete the 4.3.7 Lab: Configure IP Networks and Subnets , and the 10 question 4.3.8 Lesson Review Exam to complete the Section.
Assigned: February 27th, 2025 Teacher Pacing Due Date: February 28th, 2025
The core function of IP is to facilitate the creation of a group of logically distinct but interconnected networks, referred to as an internetwork. This means that some packets addressed to hosts on remote networks must be forwarded via one or more of the intermediate systems that establish paths between networks.
In this topic, you will identify the basic principles by which IPv4 distinguishes local and remote hosts and networks.
Text Lessons:
4.2.1 IPv4 Address Format
4.2.2 Network Masks
4.2.4 Host Address Ranges
4.2.5 Default Gateway
4.2.6 Broadcast Addresses
4.2.8 IP Interface Configuration in Linux
Text and Video Lessons:
4.2.3 Subnet Masks (1:58 minutes)
4.2.7 IP Interface Configuration in Windows (4:49 minutes)
Lab/Activity:
4.2.9 Lab: Configure IP Addresses
4.2.10 Lab: Configure IP Addresses on Mobile Devices
4.2.11 Lab: Configure IP Addresses on Linux
Quiz/Assessment:
4.2.12 Lesson Review (15 questions)
Topics Discussed:
What is the format of an IPv4 address?
How can I convert between binary and decimal representations of IPv4 addresses?
What is the purpose of a network mask, and what format can these masks take in IPv4?
What is the purpose of subnetting?
What formula is used to calculate the number of hosts per subnet?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 4.2: IP Version 4 Addressing, and complete the 4.2.9 Lab: Configure IP Addresses, 4.2.10 Lab: Configure IP Addresses on Mobile Devices, 4.2.11 Lab: Configure IP Addresses on Linux, and the 15 question 4.2.12 Lesson Review Exam to complete the Section.
Assigned: February 25th, 2025 Teacher Pacing Due Date: February 26th, 2025
The Transmission Control Protocol/Internet Protocol (TCP/IP) suite consists of complementary protocols and standards that work together to provide the functionality of the vast majority of modern networks. The Internet Protocol (IP) stands at the heart of this protocol suite, providing logical addressing and packet forwarding between different networks. In this topic, you will start to investigate the characteristics of IP by examining the structure of IPv4 packets, the format of IPv4 addresses, the differences between unicast, broadcast, multicast, and anycast addressing schemes.
Text Lessons:
4.1.2 Layer 2 vs Layer 3 Addressing and Forwarding
4.1.3 Address Resolution Protocol
4.1.4 Unicast and Broadcast Addressing
4.1.5 Multicast and Anycast Addressing
Text and Video Lesson:
4.1.1 IPv4 Datagram Header (4:35 minutes)
Lab/Activity:
4.1.6 Lab: Explore Packets and Frames
4.1.7 Lab: Explore ARP in Wireshark
Quiz/Assessment:
4.1.8 Lesson Review (10 questions)
Topics Discussed:
What headers does IPv4 use for addressing and forwarding?
What is the purpose of using logical network addressing at layer 3?
How does addressing between layer 2 and layer 3 work?
How does a host address multiple destination hosts efficiently?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 4.1: Internet Protocol Basics, and complete the 4.1.6 Lab: Explore Packets and Frames, the 4.1.7 Lab: Explore ARP in Wireshark, and the 10 question 4.1.8 Lesson Review Exam to complete the Section.
Assigned: February 24th, 2025 Teacher Pacing Due Date: February 25th, 2025
Ethernet switches and network adapters introduce the potential for issues at the Data Link layer and can reveal subtle cabling problems and interference at the Physical layer. Diagnosing and resolving problems gets more complex as you work up through the network stack. You need to assimilate your knowledge of both cabling types and Ethernet framing with awareness of status indicators and commands for network equipment to resolve these issues.
Text Lessons:
3.4.2 Port Status Indicators
3.4.3 Switch Show Commands
3.4.4 Interface Error Counters
3.4.5 MAC Address Table
3.4.6 Network Loop and Broadcast Storm Issues
3.4.7 Power Over Ethernet Issues
Text and Video Lessons:
3.4.1 Hardware Failure Issues (1:08 minutes)
Lab/Activity:
3.4.8 Lab: Troubleshoot Disabled Ports
3.4.9 Lab: Switching Loop
Quiz/Assessment:
3.4.10 Lesson Review (16 questions)
Topics Discussed:
How can you use the physical and logical topology to isolate a problem to a particular area of the network?
What information can you obtain from network device status lights?
Given symptoms of a particular problem, what commands should you use to gather information about an Ethernet switch’s configuration?
What are the symptoms and causes of a network loop?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 3.4: Switch Troubleshooting , and complete the 3.4.8 Lab: Troubleshoot Disabled Ports, the 3.4.9 Lab: Switching Loop and the 16 question 3.4.10 Lesson ReviewExam to complete the Section.
Assigned: February 12th, 2025 Teacher Pacing Due Date: February 13th, 2025
Switch ports have a number of additional configuration parameters that solve common network infrastructure problems, such as making more bandwidth available, supplying power to devices, and building a loop free mesh or partial mesh topology.
Text Lessons:
3.3.3 Spanning Tree Protocol
Text and Video Lessons:
3.3.1 Link Aggregation and NIC Teaming (2:51 minutes)
3.3.2 Maximum Transmission Unit (2:38 minutes)
3.3.4 Spanning Tree Protocol Configuration (2:38 minutes)
3.3.5 Power Over Ethernet (2:34 minutes)
Lab/Activity:
3.3.6 Lab: Configure Port Aggregation
3.3.7 Lab: Enable Jumbo Frame Support
3.3.8 Lab: Configure PoE
Quiz/Assessment:
3.3.9 Lesson Review (15 questions)
Topics Discussed:
What are the benefits of link aggregation?
Why would you consider configuring switches in your network to handle jumbo frames?
What are the options and benefits of integrating PoE devices in your network?
What protocol can be used to prevent looping and broadcast storms in your network, and how does it work?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 3.3: Switch Port Configuration, and complete the 3.3.6 Lab: Configure Port Aggregation, 3.3.7 Lab: Enable Jumbo Frame Support and 3.3.8 Lab: Configure PoE and the 15 question 3.3.9 Lesson ReviewExam to complete the Section.
Assigned: February 10th, 2025 Teacher Pacing Due Date: February 11th, 2025
Applying a layer-by-layer approach to network troubleshooting can greatly assist with isolating symptoms and causes. In this topic, you will investigate some common issues that can affect cabled networks and identify the tools and techniques that can be used to solve problems at the Physical layer.
Text Lessons:
2.6.1 Specification and Limitations
2.6.2 Cable Issues
2.6.3 Cable Category Issues
2.6.4 Cable Testers
2.6.5 Wire Map Testers and Tone Generators
2.6.6 Attenuation and Interference Issues
2.6.7 Crosstalk Issues
2.6.8 Fiber Optic Cable Testing Tools
2.6.9 Cable Troubleshooting Strategies
Lab/Activity:
2.6.10 Lab: Explore Physical Connectivity 1
2.6.11 Lab: Explore Physical Connectivity 2
2.6.12 Lab: Troubleshoot Physical Connectivity 1
2.6.13 Lab: Troubleshoot Physical Connectivity 2
2.6.14 Lab: Troubleshoot Physical Connectivity 3
2.6.15 Lab: Troubleshoot Physical Connectivity 4
Quiz/Assessment:
2.6.16 Lesson Review (15 questions)
Topics Discussed:
How can you distinguish an issue caused by improper cable choice or termination from one caused by environmental factors?
Which tools can you use to diagnose issues with copper and fiber optic cable and connectors?
What is the difference between a regular cable tester and a cable certifier?
Which tool would you use to find the end of a specific cable within a wiring closet?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 2.6 Cable Troubleshooting, and complete the 2.6.10 Lab: Explore Physical Connectivity 1, 2.6.11 Lab: Explore Physical Connectivity 2, 2.6.12 Lab: Troubleshoot Physical Connectivity 1, 2.6.13 Lab: Troubleshoot Physical Connectivity 2, 2.6.14 Lab: Troubleshoot Physical Connectivity 3, 2.6.15 Lab: Troubleshoot Physical Connectivity 4 and the 15 question 2.6.16 Lesson Review Exam to complete the Section.
Assigned: January 29th, 2025 Teacher Pacing Due Date: January 30th, 2025
Cabling is only one part of physical installation. There are also important considerations around installing switches, routers, access points, and servers within a site. Power, temperature, humidity, and fire risks can all adversely affect the reliability of network services. There are also security and access control factors to account for. While you might not be responsible for site design at this stage in your career, you should be able to explain the importance of these factors when performing maintenance and upgrades.
Text Lessons:
2.5.1 Rack Systems
2.5.2. Humidity and Temperature
2.5.3 Power Management
2.5.4 Fire Suppression
Lab/Activity:
None
Quiz/Assessment:
2.5.5 Lesson Review (10 questions)
Topics Discussed:
How do rack systems ensure density and security?
What considerations must be made for supplying power to run networking equipment?
What are the risks from environmental factors, and how can they be controlled?
Assignment:
Access the TestOut Courseware through the provided link.
Study Lesson 2.5: Physical Installation Factors, and complete the 10 question 2.5.5 Lesson Review Exam to complete the Section.
Assigned: January 27th, 2025 Teacher Pacing Due Date: January 28th, 2025
I can demonstrate my understanding of PC Hardware fundamentals by disassembling a PC, inventorying the parts and successfully reassembling the PC so that I can better understand the internal hardware architecture of a common PC.
This week, we will visit the lab, where each student will be allowed to pick out a PC to use in their lab activities throughout the year. Follow along with the in-class demonstration to disassemble, inspect, inventory, clean and reassemble the internal components of a Dell Optiplex 780 PC workstation.
Each student should first assemble their PC and monitor with all the necessary cables, connect a mouse and a keyboard, connect it to power, boot to the Windows operating system and confirm that it is in working order.
Examine the computer and peripheral components, front and back.
In a Google Doc or Form, create an inventory list of the external components. Provide the component name, manufacturer, description, characteristics and any identification numbers available (serial #, part #, model #).
Observe the boot process and determine the following information:
What is the speed of the CPU?
How much RAM is installed?
Next, each student will open up their PC, and remove and inventory (record any available information such as manufacturer, model, serial # and capacity) all easily removable components:
Hard Drive
Optical Drive (DVD-Rom)
RAM sticks
Power Supply Unit
Motherboard
Acquire a philips head screwdriver from the tool cabinet and proceed to carefully remove the heatsink assembly, exposing the CPU.
Use the cleaning equipment provided to remove the old thermal paste from the CPU and the heatsink assembly, and will acquire a tube of thermal paste to apply fresh thermal paste to the CPU. Use the How to Apply Thermal Paste video as a guide on the correct method for the application of thermal paste, and take care not to waste the provided materials.
Proceed to carefully remove the motherboard and power supply.
Use canned air to clean the PC case of lint and debris to ensure optimal airflow.
Reassemble the PC and its external peripherals, and reboot it to test its operation.
Submit the completed PC Inventory document to the Google Classroom assignment labeled “Section 2.4 Lab” by Friday, January 17th.
Assigned: January 15th, 2025 Due Date: January 17th, 2025 AZ CS Standard: Hardware and Software – HS.CS. HS.1
