Computer and Information Security · SHS2 Ict

Lesson notes

Learning Objectives

Indicator: 2.2.2.LI.2 - Discuss and implement preventive mechanisms to mitigate computer network attacks (e.g., antivirus software, hardware and software, and firewalls).

By the end of the lesson, learners can:

Define antivirus software, hardware firewalls, and software firewalls in their own words and state the function of each.
Explain at least three ways that antivirus software protects a computer from malware, including how it detects and removes threats.
Distinguish between hardware and software firewalls, describing one advantage and one limitation of each.
Demonstrate the steps for installing or enabling a firewall and scheduling a virus scan on a computer or mobile device.
Evaluate the effectiveness of different preventive mechanisms in given attack scenarios and recommend an appropriate combination of controls.

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Curriculum details

Strand: Network Systems for Transmitting Information (Strand 2)
Sub-strand: Computer and Information Security (2.2)
Content standard: 2.2.2.CS.1 - Demonstrate knowledge and understanding of safety and security issues in ICT 2.2.2.LO.1 Understand and evaluate the risks associated with the use of ICT and suggest possible preventive mechanisms to mitigate them.
Indicator: 2.2.2.LI.2 - Discuss and implement preventive mechanisms to mitigate computer network attacks (e.g., antivirus software, hardware and software, and firewalls).
Suggested placement: Semester 2, Week 15 (Week 35 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 64

Exemplars (from the NaCCA curriculum)

● Engage in brainstorming sessions to explore various preventive mechanisms and strategies for countering network attacks. ● Participate in group discussions and presentations to analyse the effectiveness of preventive mechanisms, such as antivirus software and firewalls. ● Discuss and share best practices for securing computer networks, including the responsible use of ICT and adherence to ethical guidelines.
Teaching and Learning Materials:
- Information Communications Technology
- * Notepad or exercise book * Pen * Smartphones * Laptops
- Desktop computers
- YEAR THREE
- * Tablets * TV and Radio * Productivity tools * Open Educational Resources
- (Including YouTube, MOOCs -
- Udemy/Coursera, Khan Academy,
- TESSA)
- The iBox (CENDLOS)
- Subject-based application or software
- Instructional Laboratories (with
- multimedia equipment and smartboards)
- Maintenance and repair workshops
Assessment (2.2.2.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 3 Strategic reasoning; Level 4 Extended critical thinking and reasoning.