Course Content
Module 1 Introduction to Cybercrime
0/6
Introduction to Cybersecurity
03:00
1.1 Lesson: What is Cybersecurity?
01:54
1.2 Lesson: Brief History of Cybersecurity
03:42
1.3 Lesson: Key Concepts and Terminology
04:52
1.4 Lesson: Cybersecurity Threat Landscape
03:23
Module1: Questions
Module 2: Computer Systems and Networks
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Introduction to Computer Systems and Networks
02:36
2.1 Lesson: Introduction to Computer Systems (Hardware, Software, Firmware)
04:00
2.2 Lesson: Networking Fundamentals (TCP/IP, DNS, DHCP)
04:00
2.3 Lesson: Network Architectures and Devices (Routers, Switches, Firewalls)
03:01
2.4 Lesson: Introduction to Virtualization and Cloud Computing
02:22
Module 2 Questions
Module 3: Cybersecurity Threats and Vulnerabilities
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Introduction to Cybersecurity Threats and Vulnerabilities
3.1 Lesson: Types of Cybersecurity Threats (Malware, Phishing, Ransomware)
02:31
3.2 Lesson: Vulnerability Management and Patching
03:16
3.3 Lesson: Social Engineering and Human Factors
02:13
3.4 Lesson: Introduction to Penetration Testing and Red Teaming
03:03
Module 3 Questions
Module 4: Cryptography: Encryption, Decryption, Hashing
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4.1 Lesson: Introduction to Cryptography (Encryption, Decryption, Hashing)
02:53
4.2 Lesson: Symmetric and Asymmetric Encryption
02:41
4.3 Lesson: Access Control Models and Mechanisms (MAC, DAC, RBAC)
04:12
4.4 Lesson Identity and Access Management (IAM) Systems
03:02
Module 4 Questions
Module 5: Network Security and Defence
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Introduction to Network Security and Defence
02:59
5.1 Lesson: Network Security Fundamentals (Firewalls, IDS/IPS, VPNs)
01:52
5.2 Lesson: Secure Communication Protocols (HTTPS, SSH, SFTP)
01:54
5.3 Lesson: Network Segmentation and Isolation
01:50
5.4 Lesson: Incident Response and Disaster Recovery
03:10
Module 5: Questions
Module 6: Operating System and Application Security
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Introduction to Operating System and Application Security
02:24
6.1 Lesson: Introduction to Operating System Security (Windows, Linux, macOS)
03:06
6.2 Lesson: Application Security Fundamentals (Input Validation, Error Handling)
04:22
6.3 Lesson: Secure Coding Practices and Guidelines
04:17
6.4 Lesson: Introduction to Web Application Security (OWASP Top 10)
02:31
Module 6:Questions
Module 7:  Cybersecurity Tools and Technologies
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Introduction to Cybersecurity Tools and Technologies
08:13
7.1 Lesson: Introduction to Cybersecurity Tools (Nmap, Nessus, Metasploit)
04:29
7.2 Lesson: Security Information and Event Management (SIEM) Systems
02:49
7.3 Lesson: Introduction to Cloud Security and Compliance
03:14
7.4 Lesson: Emerging Trends and Technologies in Cybersecurity (AI, ML, IoT)
02:46
Module 7: Questions
Module 8: Cybersecurity Governance and Risk Management
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Introduction to Cybersecurity Governance and Risk Management
03:29
8.1 Lesson: Cybersecurity Governance and Compliance
02:23
8.2 Lesson: Risk Management Fundamentals (Identify, Assess, Mitigate)
02:44
8.3 Lesson: Introduction to Cybersecurity Frameworks and Standards (NIST, ISO 27001)
02:49
8.4 Lesson: Cybersecurity Awareness and Training
02:27
Module 8: Questions
Module 9: Hands-on Cybersecurity Projects
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Introduction: Hands-on Cybersecurity Projects
03:18
9.1 Lesson: Setting up a Home Lab for Cybersecurity Testing
04:28
9.2 Lesson: Conducting Vulnerability Scanning and Penetration Testing
02:30
9.3 Lesson: Implementing a SIEM System and Analysing Security Logs
05:01
9.4 Lesson: Developing a Cybersecurity Incident Response Plan
04:41
Module 9: Questions
Module 10: Conclusion and Next Steps
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10.1 Lesson: Recap of Key Concepts and Takeaways
02:51
10.2 Lesson: Future Directions in Cybersecurity
03:42
10.3 Lesson: Resources for Further Learning and Professional Development
03:30
10.4 Lesson: Final Project Presentations and Feedback
01:56
Module 10: Questions
Examination Questions
0/1
40 Practical Questions
Introduction to Cyber-Security

Networking Fundamentals (TCP/IP, DNS, DHCP)

Networking fundamentals form the backbone of modern communications and are essential for understanding how data is transmitted across interconnected systems. This overview focuses on three critical protocols: TCP/IP, DNS, and DHCP.

TCP/IP (Transmission Control Protocol/Internet Protocol)

TCP/IP is a suite of communication protocols that enables different devices on various networks to communicate with one another. It serves as the fundamental architecture of the internet by facilitating data transmission between hosts. The suite consists of multiple layers; however, the two most crucial are the Transmission Control Protocol (TCP) and the Internet Protocol (IP).

  • Internet Protocol (IP) is responsible for addressing and routing packets of data so that they can travel across networks to their proposed destinations. Each device connected to a network is assigned a unique IP address, which plays a vital role in ensuring that data reaches the correct location.
  • Transmission Control Protocol (TCP) ensures reliable communication by establishing connections between devices before data transfer begins. It segments larger messages into smaller packets, sends them individually over the network, and reassembles them upon arrival at their destination. This process includes error-checking mechanisms that guarantee packets are delivered without loss or corruption.

DNS (Domain Name System)

The Domain Name System (DNS) roles as the phonebook of the internet, translating human-readable domain names such as www.example.com into IP addresses like 192.0.2.1 that computers use to identify each other on a network.

When users enter a web address in their browser, DNS servers resolve this name into its corresponding IP address through a hierarchical structure consisting of various record types:

  • A Records link domain names to IPv4 addresses.
  • AAAA Records do similarly for IPv6 addresses.
  • CNAME Records allow an alias to point to another domain name.

This translation process is crucial for web browsing as it enables users to access websites without needing to remember numerical IP addresses.

DHCP (Dynamic Host Configuration Protocol)

Dynamic Host Configuration Protocol (DHCP) automates the assignment of IP addresses within a local area network efficiently managing the distribution of these addresses and other vital network configuration details such as subnet masks and default gateways.

When devices connect to a network equipped with DHCP:

  1. The device broadcasts a request for an IP address.
  2. The DHCP server responds with an available address along with necessary configuration parameters.
  3. The device then acknowledges receipt and configures itself accordingly.

The introduction of DHCP significantly reduces administrative workload while minimizing conflicts arising from duplicate address assignments—a common issue in static configurations.

Understanding these three networking fundamentals—TCP/IP for reliable data transfer, DNS for user-friendly navigation and identification within networks, and DHCP for efficient management—forms an essential foundation for anyone involved in networking or information technology fields today.

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