DC-COMM.KZ1
Data and Computer Communications
Master essential Data and Computer Communications principles, from physical layers to advanced network security and emerging technologies.
- Practice in 27 Hands-On Labs — nothing to install
- 13 Interactive Lessons and 126 topics mapped to the official exam objectives
Intermediate Self-paced · 1 year access
27 Hands-On LiveLabs
Practice real IT tasks in guided environments.
- Real environments
- Auto-graded
- No installation
13Interactive Lessons
126Topics
27LiveLab
12Videos
644Flashcards
644Glossary of terms
01 / Skills you'll get
What you will be able to do
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No credit card required
This Data and Computer Communications course provides a no-nonsense, technical deep dive into the foundational and advanced concepts of modern networking. We'll dissect everything from the physical layer's signal fundamentals and transmission media limitations to complex routing protocols and critical network security principles. You'll learn how to troubleshoot common network failures, understand the trade-offs in protocol selection, and grasp the intricacies of IP addressing and subnetting. This isn't just theoretical; it's practical Data and Computer Communications training designed to equip you with the skills needed to design, implement, and secure robust networks. Prepare for your Data and Computer Communications certification prep by mastering real-world challenges, not just memorizing definitions. This online Data and Computer Communications course cuts through the fluff, focusing on what truly matters for network engineers.
- Network Architecture & Protocols: Master the OSI and TCP/IP models, understanding their practical implications and limitations in real-world network design and troubleshooting.
- IP Addressing & Routing: Skillfully implement IPv4/IPv6 addressing, subnetting, NAT, and configure both static and dynamic routing protocols like OSPF or EIGRP, recognizing their performance trade-offs.
- Network Security & Performance: Develop the ability to identify common network threats, apply cryptographic principles, and implement security measures, while also analyzing network performance metrics and managing congestion.
- Transmission Media & Data Link Control: Understand the characteristics and selection of various transmission media, implement error detection/correction, and manage flow control protocols for reliable data transfer.
Course Highlights
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13 Structured Lessons Comprehensive coverage of core course objectives
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27 Hands-On LiveLabs Interactive guided scenarios with instant evaluation
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1 Year Full Access Self-paced learning accessible anytime on all devices
02 / Lessons & labs
See exactly what you will learn and practice
Lessons
13 Interactive Lessons · 126 topics01 Preface 4 topics +
- What This Course Covers
- What This Course Does Not Cover
- Prerequisites
- Who This Course Is For
02 Introduction to Data Communications 10 topics · 2 LiveLab +
- Fundamentals of Data Communication
- Evolution and Trends in Data Communications
- Protocols and Standards
- Network Models: OSI and TCP/IP
- Network Types and Topologies
- Data Transmission Fundamentals
- Introduction to Network Security
- Hands-On Activity: "The Protocol Play-Act"
- Summary
- Review Question
2 LiveLab in this lesson — see the labs panel →
03 Data Representation and Signal Fundamentals 12 topics · 2 LiveLab +
- Introduction to Data Representation
- Analog vs. Digital Signals
- Digital Data, Digital Signals (Line Coding)
- Analog Data, Digital Signals (Digitization)
- Digital Data, Analog Signals (Modulation)
- Analog Data, Analog Signals (Simple Modulation)
- Transmission Impairments
- Networking Fundamentals & Capacity
- Multiplexing Techniques
- Hands-On Activity: "Signal Quality Detective"
- Summary
- Review Question
2 LiveLab in this lesson — see the labs panel →
04 The Physical Layer and Transmission Media 11 topics · 1 LiveLab +
- Introduction to the Physical Layer
- Characteristics and Selection of Transmission Media
- Conducted Transmission Media
- Wireless Transmission Media
- Wireless Technologies and Standards
- Signal Encoding, Modulation, and Impairments
- Modems and Physical Layer Devices
- Regulatory Aspects and Industry Standards
- Hands-On Activity: "Cable and Connector Safari"
- Summary
- Review Question
1 LiveLab in this lesson — see the labs panel →
05 The Data Link Layer and Local Area Networks 11 topics · 2 LiveLab +
- Introduction to the Data Link Layer
- Data Link Layer Framing
- Error Detection and Correction
- Flow Control and Automatic Repeat Request (ARQ) Protocols
- Common Data Link Protocols
- Multiple Access Protocols for Shared Media
- Ethernet (IEEE 802.3) Local Area Networks
- Wireless LANs (IEEE 802.11)
- Hands-On Activity: "MAC Address and Frame Basics with Wireshark"
- Summary
- Review Question
2 LiveLab in this lesson — see the labs panel →
06 Network Layer and IP Addressing 10 topics · 3 LiveLab +
- Understanding the Network Layer
- IPv4 Addressing Fundamentals
- Subnetting and VLSM
- Network Address Translation (NAT)
- IPv4 Address Exhaustion and the Transition to IPv6
- Network Address Assignment and Resolution
- Internetworking and Gateways
- Hands-On Activity: "Exploring Your Network Layer Configuration"
- Summary
- Review Question
3 LiveLab in this lesson — see the labs panel →
07 Routing and Inter-Networking 12 topics · 1 LiveLab +
- Introduction to Routing Fundamentals
- show ip interface brief
- Static Routing Configuration and Management
- Dynamic Routing Protocols: Interior Gateway Protocols (IGPs)
- Advanced IGP Concepts and Configuration
- Hands-On: Advanced IGP Configuration
- Dynamic Routing Protocols: Exterior Gateway Protocols (EGPs) - BGP
- Inter-Networking Concepts and Best Practices
- Routing Protocol Selection and Troubleshooting
- Hands-On Activity: "Building a Simple Routed Network and Observing Routes"
- Summary
- Review Question
1 LiveLab in this lesson — see the labs panel →
08 The Transport Layer and End-to-End Communication 13 topics · 3 LiveLab +
- Introduction to the Transport Layer
- Transport Layer Protocols: TCP vs. UDP Overview
- User Datagram Protocol (UDP)
- Transmission Control Protocol (TCP)
- TCP Connection Management
- TCP Reliability Mechanisms
- TCP Flow Control
- TCP Congestion Control
- Ports and Sockets
- Impact of Network Conditions on Transport Layer
- Practical Scenarios and Case Studies
- Summary
- Review Question
3 LiveLab in this lesson — see the labs panel →
09 The Application Layer and Network Services 11 topics · 2 LiveLab +
- Introduction to the Application Layer
- Application Architectures
- Web Services and Protocols
- Email Services and Protocols
- Real-time Communication Protocols
- Network Server Types and Functions
- Beyond the Application Layer: Presentation and Session Layers
- Internet Architecture and Core Services Overview
- Hands-On Activity: "Designing an Application's Network Interaction"
- Summary
- Review Question
2 LiveLab in this lesson — see the labs panel →
10 Network Design and Implementation 9 topics · 2 LiveLab +
- Fundamentals of Network Topologies and Devices
- Local Area Network (LAN) Design Principles
- Enterprise Campus Network Architecture
- Wide Area Network (WAN) Technologies
- Wireless LAN (WLAN) Deployment and Security
- Network Design Best Practices and Trade-offs
- Hands-On Activity: "Designing a Small Office Network"
- Summary
- Review Question
2 LiveLab in this lesson — see the labs panel →
11 Network Performance and Management 9 topics · 3 LiveLab +
- Understanding Network Performance Metrics
- Factors Influencing Network Capacity
- Network Congestion and Queueing
- Quality of Service (QoS)
- Network Monitoring and Diagnostics
- Network Manageability
- Hands-On Activity: "Diagnosing Network Performance Issues"
- Summary
- Review Question
3 LiveLab in this lesson — see the labs panel →
12 Network Security Fundamentals 8 topics · 3 LiveLab +
- Core Principles of Network Security
- Cryptographic Foundations
- Authentication, Authorization, and Accounting (AAA)
- Common Network Security Threats and Mitigation
- Advanced Network Security Concepts
- Hands-On Activity: "Exploring TLS Certificates and Trust"
- Summary
- Review Question
3 LiveLab in this lesson — see the labs panel →
13 Advanced Networking and Emerging Technologies 6 topics · 3 LiveLab +
- Cloud Networking Fundamentals
- Software-Defined Networking (SDN) and Programmable Networks
- Advanced Network Architectures and Services
- Hands-On Activity: "Exploring Cloud Networking Concepts with a Virtual Lab"
- Summary
- Review Question
3 LiveLab in this lesson — see the labs panel →
Hands-On Labs Our edge
27 LiveLabs- Observing Packet Tracer and the OSI Layers Using ping and tracert
- Capturing Live Traffic and Mapping Protocols to OSI Layers Using Wireshark
- Converting Number Systems and ASCII Values Using VS Code
- Visualizing Analog, Digital, and Modulated Signals
- Analyzing Wireless Transmission and Physical Layer Technologies
- Detecting CRC Errors Using a Python Calculator
- Analyzing Ethernet Frame Using Wireshark
- Setting Up a DHCP Server and Tracing DNS Resolution
- Designing and Verifying IP Subnets Using ipcalc CLI
- Configuring IPv6 Addressing and Validating Connectivity
- Designing BGP Peering Strategies and AS Policies
- Analyzing TCP and UDP Traffic Using Wireshark
- Analyzing the TCP Three-Way Handshake and Teardown Using Wireshark
- Exploring Ports and Socket Communication
- Configuring and Validating SMTP and POP3 Services Using Raw Protocol Commands via Telnet
- Tracing Full DNS Resolution Using dig +trace
- Configuring VLAN Segmentation Using Packet Tracer
- Designing a Branch Office Network Solution
- Troubleshooting Network Connectivity Using Diagnostic Tools
- Analyzing Wireshark Performance and Identifying Network Bottlenecks
- Troubleshooting End-to-End Network Connectivity
- Inspecting TLS Certificates and Analyzing HTTPS Handshakes with Wireshark
- Configuring AAA Authentication Using RADIUS
- Responding to Security Incidents and Implementing Zero Trust
- Exploring Network Automation using Python and REST APIs
- Building TCP & UDP Socket-Based Client-Server Application Using Python
- Designing Smart City Architecture Through SDN, IoT, and Cloud Convergence
Labs run in your browser — nothing to install.
03 / FAQs
Questions before you start
Who is this Data and Computer Communications course for?+
This course is designed for aspiring network engineers, IT professionals, and anyone seeking a comprehensive, technical understanding of data and computer communications. It assumes basic IT literacy but dives deep into complex topics.
What are the prerequisites for this Data and Computer Communications training?+
While no specific certifications are required, a foundational understanding of basic computing concepts and operating systems will be beneficial. We start with fundamentals but quickly progress to advanced topics.
How does this course prepare me for Data and Computer Communications certification?+
This comprehensive Data and Computer Communications course covers all critical domains, from physical layer mechanics to advanced network security and emerging technologies. The 13 chapters, flashcards, and key terms provide a robust study guide for various industry certifications.
Will I learn practical skills for network design and troubleshooting?+
Absolutely. The course emphasizes practical application, covering network topologies, LAN/WAN design principles, IP addressing, routing configuration, and performance management. You'll learn to identify failure points and implement solutions.
Does this course cover modern networking concepts like SDN and Cloud Networking?+
Yes, the final chapter delves into advanced networking, including Cloud Networking Fundamentals, Software-Defined Networking (SDN), and other programmable network architectures, preparing you for future industry trends.
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Prepare for Data and Computer Communications
Master data communications, routing, security, and network performance with practical skills designed for real-world networking challenges.
- 1 year of full access
- 27 LiveLab included
- Certificate of completion
No credit card required