IT Support & Services
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
Access Modifiers in C#
In this learning activity we will learn what access modifiers are and how they are used in C#.
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An Algorithm for Binary Subtraction
Students use the Base Minus One Complement method to perform binary subtraction. This learning activity has audio content and immediate feedback.
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An Overview of IT Project Management
In this learning activity, you’ll be introduced to the many responsibilities of being an IT project manager.
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AGILE, IT Project management, project manager responsibilities, What is project management
An Overview of the Raspberry Pi
In this learning activity you'll discover what the Raspberry Pi is, how it's used, and some projects you can do at home.
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How do I use the Raspberry Pi, Raspberry Pi programming, Raspberry Pi projects, What is Raspberry Pi
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
Capacitors Series - Parallel: Practice Problems
Students complete 10 practice problems.
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aa0003, capacitors, dc, parallel, series
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 Computer Workstation: Skills Check 1
In this interactive exercise, learners label the components of a workstation, a Windows desktop, and an application window.
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computer, workstation
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
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
FTP - What You Need to Know
In this learning activity you'll explore why the FTP protocol is often used to transfer data across the network and more importantly, why it should not be.
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file transfer, ftp, hacker, protocol, security, what is the FTP protocol, white hat
Fiber-Optic Cables
In this learning activity you'll explore the physical construction and operation of single-mode and multi-mode fiber-optic cables used in networking.
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cable, cables, connectors, fiber, optic
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
Go-Back-N ARQ
You'll be introduced to the Go-Back-N ARQ, learn what it is, and find out how it's used to keep track of data sent between networked computers.
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arq, Data, Frames, Go Back N ARQ, Networks, Static Window, What is ARQ
How Switches Increase Speed
In this learning activity you'll observe how switches are used in local area networks to increase data transmission speeds.
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area, increase, lan, lans, local, network, networks, speed, switches, why
IP Addressing and Subnetting
In this learning activity you'll review how a local area network computer uses a subnet mask to determine if its message is intended for a computer on the same network or on a remote network.
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addressing, area, id, information, ip, lan, local, network, subnet, subnetting, technology
IP Routing
In this learning activity, you’ll explore how routers use routing tables to move data packets from their origin to their destination.
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how does routing work, networking, routing tables, static routing, What is routing
IT-Cybersecurity: Red Team, Blue Team, and Cybersecurity Policies
Think like a hacker. Respond like a pro. In this module, you’ll experience a simulated breach and learn how red and blue teams handle the heat.
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Phishing campaign, Reconnaissance, simulation, Stolen credentials, Vyond
Instantiation: Constructing an Object
In this learning activity you'll discover how constructors in the C# programming language are used to instantiate objects.
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c sharp, c#, constructor, instantiation, Object Oriented Programming, OOP
International Time Zones (Screencast)
In this screencast, you will learn about the 24 time zones.
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Greenwich, international, Time, Zone
Intrusion Detection Systems
Explore Intrusion Detection Systems, what they are, how they're configured, and the types of protection the provide.
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computer security, hacker, IDS, IDS security systems, Network security, security, What are intrusion detection systems
Malware
In this learning activity, you'll explore what malware is, what the different types of malware are, and how you can protect your computer from these threats.
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adware, bots, how does malware affect my computer, ransomeware, spyware, trojans, viruses, What is malware, worms
Man in the Middle Attacks with ARP Poisoning
In this learning activity you'll identify Man-in-the-middle attacks and discuss how they affect network security.
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arp, arp cache, arp table, mac address, network sniffing
Name Servers
In this learning activity you'll explore the process that servers follow to take a name entered on a computer browser and convert it to an IP address.
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address, browser, ip, name, server, servers
Network Internet Protocol (IPv6)
In this learning activity you'll explore the IPv4 IP address scheme and the planned conversion to IPv6.
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address, addressing, information, internet, ip, ipv4, ipv6, protocol, technology
Network Topologies
In this learning activity, you'll examine the different ways in which computers and other equipment are physically connected in local area networks and the advantages and disadvantages of each topology.
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bus, network, ring, star, topologies, topology, what is a topology
Normalization – 1st Normal Form
In this learning activity you'll explore and practice the first step in normalizing a database.
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1nf, 2nf, 3nf, how do you normalize a database, normal form, primary key, what is data normalization, what is first normal form
Normalization – 2nd Normal Form
In this activity you'll practice designing a table in second normal form.
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1nf, 2nf, 3nf, concatenated, normal form, partial dependency, primary key
Normalization – 3rd Normal Form
In this learning activity, you'll be introduced to Third Normal Form and you'll design a table following these rules.
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1nf, 2nf, 3nf, database normalization, prinary key, third normal form, transitive dependency, what is third normal form
Object or Class?
In this learning activity, you'll watch an animated explanation of the terms class and object as used by computer programmers, and then contrast the differences.
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Abstraction, Animated explanation, Classes, Classroom resources, Computer programming, Data types, Educational resources, eLearning, Encapsulation, Inheritance, Interactive learning, Learning activities, Methods, Object-oriented programming, Objects, Online learning, Polymorphism, Programming concepts, Programming languages, Programming terminology, Student engagement, Study aids, Variables
Overflow and Underflow for Signed Binary Numbers
Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.
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binary, number, numbering, numbers, overflow, signed, system, underflow
Peer-to-Peer Operating Systems
In this learning activity you'll examine how computers operate in a peer-to-peer network operating system.
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computer, network, networking, operating, p2p, peer, sharing, system
Pointers In C++
In this learning activity you'll be introduced to programming pointers compatible with both the C and C++ languages.
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address-of, arrow operator, dereference, dereference operator, dot operator, memory, pointers, what are C++ pointers?
Port Scanning
In this learning activity you'll explore how port scanning is commonly used by hackers to infiltrate a network and how IT security professionals can detect it.
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how does port scanning work, how is port scanning used by hackers, network infiltration, what is port scanning
Port Scanning - Common Network Protocols
In this learning activity you'll explore three common network protocols that computers use to communicate in a network.
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ICMP, network protocols, Port scanning, security, TCP, UDP
Port States
In this learning activity you'll identify TCP and UDP port states and how they behave during interaction.
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closed, ethical hacking, filtered, firewall, open, packet, rst, security+, syn
Protecting Data in the Real World
You’re the IT pro on call. Use VPN, Remote Desktop, and BitLocker to secure company data to troubleshoot the kinds of challenges cybersecurity teams face every day.
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Records Management: An Introduction to Filing Rules and Indexing (Screencast)
In this screencast, learners read an explanation of the file rules and indexing that have been developed by the Association of Records Managers and Administrators.
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file, files, filing, index, indexing, record, records
Records Management: Applying ARMA Rules to Business Filing
In this interactive object, learners apply their knowledge of the Association of Records Managers and Administrators (ARMA) filing rules by organizing and filing records alphabetically, numerically, and by subject.
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arma, business, document, filing, indexing, office, organizing, records
Referential Integrity
Explore what referential integrity is, why it's important to reliable data organization, and learn how it enforces constraints.
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constraint, database, erd, foreign key, how does referential integrity work, lookup table, normal form, normalization, primary key, RDBMS, relational
Routers
In this learning activity you'll examine how routers transfer data between local area networks and the Internet.
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data, flow, how do routers work, lan, lans, network, router, routers, routing
SSH - Secure Shell
In this activity you will learn the benefits of SSH, Secure shell, versus plain FTP.
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FTP, Man in the middle attack, secure channel, SSH, unix
STP - The Spanning Tree Protocol
In this learning activity you'll use the Spanning Tree Protocol to correctly set up a loop-free Ethernet local area network.
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how does the spanning tree protocol work, lan, loop, network, what is the spanning tree protocol
Secure Data Erasure
In this simulation, you’ll learn to differentiate between basic deletion and secure erasure to protect sensitive information.
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data, erasing data, hard drive, HDD, ssd
Setting Up Your Virtual Private Network (VPN)
The learner will understand how to set up a Virtual Private Network (VPN) using a home computer network.
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network, private, secure, virtual, VPN
Signed Binary Numbers: 2's Complement
Learners use this interactive and animated object to examine the use of binary numbers in a programmable logic controller. A brief quiz completes the activity.
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binary, numbering, numbers, signed, singed, system
Social Engineering Attacks
In this learning activity, you’ll identify information hackers use to gain access to a company, explain different types of social engineering attacks, and recognize different solutions to avoid these attacks.
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black hat, cognitive bias, hacker, phishing, phishing and baiting, psychological manipulation, what are social engineering attacks
Strings in the .NET Framework
In this activity, we will explain the string datatype in the .net framework and cover the peculiarities of a reference type that appears to behave like value type.
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c#, primitive, reference type, string, value type
Subtracting Binary Numbers by Adding the 2's Complement
In this learning activity you'll solve three binary subtraction problems using the 2's complement method.
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math, microprocessors, micro-processors, two's complement, what is a binary number
The Broadband Telco Services Subscriber Loop
Walk through the subscriber loop and learn how the signal travels from the central office to the subscriber.
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broadband, subscriber loop, telephone
The CLR: Overview of the Common Language Runtime
In this learning activity, you’ll explore the Common Language Runtime, or CLR.
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The IP Address Format
In this learning activity you'll examine the format of an IP address and interpret the octet by converting between decimal and binary numbers.
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address, addresses, format, information, ip, numbers, technology
The Logic Gates (Screencast)
Students read information about basic logic gates including the gates' names, symbols, Boolean expressions, pronunciations, and truth tables. They then complete a matching exercise.
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digital, gates, logic
The Processor Scan Cycle (Screencast)
Learners examine the three steps of a processor scan cycle.
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controller, controllers, cycle, logic, plc, plcs, processor, programmable, scan
Timing Diagrams (Screencast)
The explanation and use of timing diagrams used in digital electronics to graphically show the operation of various circuits are given.
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dd0001, diagram, diagrams, gate, timing, waveform
Twisted Pair Cable Noise Immunity
In this learning activity you'll explore how to reduce electromagnetic interference (EMI) and crosstalk between adjacent wires.
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cables, electromagnetic, emi, immunity, interference, noise, pair, talk, twisted, What is noise immunity
Understanding Cloud Service Types
You'll explore the three main services of cloud computing: Software as a service, Platform as a Service, and Infrastructure as a Service.
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as a service, aws, azure, data center, Iaas, Paas, Saas, scalability, server, virtual, what are types of cloud services
Understanding Common DDL Statements
In this learning activity, you’ll explore the Data Definition Language (DDL) including its three main commands: CREATE, ALTER, and DROP.
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DDL, SQL
Understanding and Writing Pseudocode: Advanced Topics
In this module, you'll build upon the concepts Understanding and Writing Pseudocode: The Basics, by learning new techniques and terms to make your pseudocode more complete.
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coding, creating code using pseudocode, how does pseudocode work, programming languages, using pseudocode, What is pseudocode
Understanding and Writing Pseudocode: The Basics
In this activity you'll explore how flowchart programs can be converted into pseudocode programming.
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how is pseudocode used, What is pseudocode, Writing programs using pseudocode
Unshielded Twisted Pair Cables
In this learning activity you'll identify various types of unshielded twisted pair cables and their networking connectors.
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cables, pair, twisted, unshielded, utp
Value Types and Reference Types in the .Net Framework
In this learning activity you'll discover the functional differences between value and reference types within the .Net framework.
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.Net, c#, computer science, DotNet, garbage collector, heap, information technology, programming, stack
Variables in Computer Programming (C#)
In this learning activity you'll define what a variable is, how they're used in the C# programming language, and how the computer works with variables under the hood.
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abstraction, C#, code, memory, programming, RAM, variable
Variables in Computer Programming (JavaScript)
In this learning activity you'll review what a variable is, how to use variables in JavaScript, and how the computer works with variables.
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abstraction, code, JavaScript, memory, programming, RAM, variable
Virtual Private Networks (VPN)
In this learning activity you'll explore how VPN is used to create a secure connection between two networks.
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ip address, network connection, router, vpn, what is a VPN
Visual Logic Basic Programming: Using Flow Charts
In this learning activity you'll understand what flow charts are and how they're used to create computer programs.
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basic programming, computer flowchart, creating inputs outputs, how are flow charts used with computer programming, program flowcharts, visual logic
Visual Studio: Connecting to Team Foundation Service
In this learning activity, you’ll practice connecting to the Team Foundation Service (TFS) and your local code repository to get existing code.
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how do I connect to the Team Foundation Services, source control, tfs, version control, visual studio, VSTS
What Is Normalization?
In this learning activity you'll examine how database normalization eliminates redundancy and helps maintain consistency within a relational database.
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1nf, 2nf, 3nf, data, data anomalies, normal form, normalization, redundancy, referential integrity
What is Database Denormalization?
In this activity, the learner will understand what denormalization is and when it's an appropriate strategy.
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denormalization, flatten, performance, reporting
What is the .Net Framework?
In this learning activity you'll discover what the .NET Framework is, what problems it solves, and how it came to be.
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base class library, BCL, C#, CLR, COM, Common Language Runtime, component, IL, memory, programming
Window 10 and Desktop Elements
In this interactive object, learners identify the elements of the Windows platform in a drag-and-drop exercise.
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computer, window
Working with Zip Files
In this learning activity you'll learn what Zip files are, their origins, and how to work with them in Windows.
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How do I use zip files, How do I work with zip files, What are zip files