Network Systems & Cybersecurity
Learning Objects
Dive into Wisc-Online’s rich collection of learning objects — bite-sized, interactive, and designed for real learning. These modular digital tools include animations, drag-and-drop exercises, quizzes, videos, and more. You can explore topics across STEM, arts, humanities, career skills, and beyond. Each learning object is crafted to help learners actively engage with content—reviewing, applying, self-checking—in a way that’s flexible and self-paced.
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Learning Object
AND Gates (Screencast)
In this learning activity you'll describe the operation of an AND gate by using a truth table, a waveform diagram, a Boolean Algebra equation, a switch analogy, and a written definition.
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boolean, dd0004, diagram, equation, gate, table, truth, waveform
Asymmetric Encryption: How It Works
In this learning activity you'll explore public key encryption and conclude with a short quiz.
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decrypt, encrypt, encryption, private key, public key, secure socket layer, ssl, what is a public key
Async and Await
In this learning activity, we’ll explore how async and await is used in mobile programming to allow multiple tasks to happen at once.
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Async and await mobile development, parallel, thread, What is async and await, writing code for mobile devices
Authentication versus Authorization
In this learning activity you'll review the differences between identification, authentication, and authorization.
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Authentication, authentication and authorization?, Authorization, Identification, Logon security, what is identification?, What is the difference between identification
Bandwidth
In this learning activity you'll explore bandwidth.
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bandwidth, information, modulation, networking, technology
Bandwidth Capacity Techniques
In this learning activity you'll follow the process of converting digital data into a series of analog signals.
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bandwidth, capacity, modem, modems, modulation techniques, what are DSL cable and fiber optic cables
Basic Logic Gates
The learner will understand the operation of the six fundamental logic gates and the inverter by using truth tables, Boolean Algebra equations, switch analogies, and written statements.
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and gate, boolean algebra, exclusive nor gate, exclusive or gate, inverter gate, logic gates functionality, nand gate, nor gate, or gate
CRC – Cyclic Redundancy Check
In this learning activity, you’ll be introduced to what the CRC is, the technology behind it, and how it’s performed.
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computer network crc, digital networking, error detecting code, What is the cyclic redundancy check
Coaxial Cables
In this learning activity you'll examine the RG ratings, networking applications, and types of connections for various coaxial cables.
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cable, cables, coax, coaxial, ratings, rg
Components of a Data Center
In this learning activity you'll describe the typical components of a data center.
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Applications, Cloud Computing, Data Center, Data storage, what is a data center
Cross-Site Scripting Defined
In this activity we will learn how vulnerable websites are open to cross site-scripting attacks (XSS).
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cross site scripting, non-persistent, persistent, reflected attack, session, xss
Cross-site Scripting Awareness
In this learning activity, you'll explore the topic of cross-site scripting, (or XSS)
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cookie, What is XSS? What is cross site scripting? Malicious code. XSS study guide.Internet safety
DDoS - Distributed Denial of Service Attacks
Explore what DDoS attacks are, the methods used to carry them out, and how to prevent them.
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DDos, hackers, how to prevent hackers, http, internet, server, what is a DDoS attack, what is a distributed denial of service attack
Data Conversion
Learners observe animations showing how data is converted between serial and parallel flow.
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conversion, conversions, data, flow, parallel, serial
Data Flow on the Internet
In this learning activity you'll examine how a data file is broken into packets and transmitted over the Internet.
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ip, layer3, packets, router, routers, routing, tcp, tcp/ip, udp, web, wide, world, www
Denial of Service Attacks
In this learning activity you'll explore what a denial of service attack is and learn how a single hacker can take down an entire system.
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DDos, how do DDoS attacks work?, http, interface, internet, server, what is a denial of service attack
Disk Encryption Simulation
You will encounter real-world challenges that mimic what IT professionals face in day-to-day operations, providing hands-on experience with resolving TPM errors.
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Firewalls: Relationships Among Firewall Perimeters
In this learning activity you'll examine how firewalls block viruses by discussing trusted, semi-trusted, and untrusted networks.
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between, firewall, perimeters, relationships
Wisc-Online FAQs
Explore this section for helpful answers to common questions regarding Wisc-Online.
Why did Wisc-Online change?
Wisc-Online has upported millions of learners for over 20 years. It was time for a refresh! By moving to WisTech Open, we were able to continue offering free, high-quality learning resources on a more modern, sustainable platform.
What happened with the Wisc-Online Arcade?
The Play Games Arcade went offline at the time Wisc-Online moved to WisTech Open.
Do saved links or bookmarks still work?
No, bookmarks to the old site stopped working after December 2025.
What happened to Wisc-Online objects that were downloaded into LMS platforms?
If instructors had downloaded and embedded Wisc-Online objects (like SCORM packages) into their LMS, those continued to work even after the Wisc-Online site transitioned to WisTech Open. These objects were self-contained and did not rely on the live site.
Is there an opportunity to develop new content?
Yes. Ideas for new content could be shared at https://www.wistechopen.org/contact by selecting “Pitch a Project Idea.” All project ideas were considered based on available funding.