Topic name

Subtopic

Learning Outcome

Topic Name-Recall(Slide3)

Hook/Story/Analogy(Slide 4)

• Protect networks and devices from unauthorized access

• Stop hackers and malware attacks

• Control which applications or users can access the network

• Secure sensitive information

• Monitor network communication

• Reduce security risks in organizations and personal systems

What is the Use of a Firewall?

How Firewall Works

A firewall works by inspecting network traffic using predefined rules.

Step-by-Step Working

• A data packet tries to enter or leave the network

• The firewall checks the packet details:

  • Source IP address

  • Destination IP address

  • Port number

  • Protocol (TCP/UDP)

• The firewall compares the packet with configured rules

• Based on the rules:

  • Allow → packet passes through

  • Deny → packet is blocked

• The firewall logs the activity for monitoring and security analysis

What is a Firewall?

A firewall is a security system (hardware, software, or both) that monitors and controls incoming and outgoing network traffic based on predefined rules.

 Purpose of Firewall in Network Security

The firewall exists because the internet is not exactly a friendly neighborhood.

• Prevents unauthorized access to networks

• Blocks malicious traffic like hackers or malware

• Allows only trusted communication

• Protects sensitive data from being exposed

• Acts as a first line of defense in network security

 Types of Firewalls

Core Concepts (Slide 7)

Core Concepts (.....Slide N-3)

Summary

Which platform is mainly used for professional networking and B2B marketing ?

Which platform is mainly used for professional networking and B2B marketing ?