How Much Do You Know About Internet Firewall?

A network layer firewall is also called a packet filter. This type of firewall examines the packets of data that are being transmitted through a network and filters them based on predetermined rules. It analyzes the source and destination IP addresses, ports, and protocols to determine whether to allow or block the packets. Packet filters are an essential component of network security as they help protect against unauthorized access and potential threats.

An IPS (Intrusion Prevention System) is a security technology that monitors network traffic for malicious activity or unauthorized access attempts. It works by analyzing incoming and outgoing network packets in real-time, comparing them to a database of known attack patterns, and taking immediate action to block or prevent any suspicious or malicious activity. By actively preventing intrusions and attacks, an IPS helps to enhance the overall security and integrity of a network.

The stateful filters are classified as the 2nd generation.

The correct answer is 3 because the question is asking about the number of people who developed the second generation of firewall. Therefore, the correct answer would be the option that states "3".

The stateful filter was developed in 1989.

The second generation firewalls were called Circuit Level Getaways.

There are two bases of a Firewall. This suggests that there are two fundamental types or categories of Firewalls that exist.

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There are two subcategories of the network layer firewall.

FWTK stands for "Firewall Toolkit," which was a popular software package used for network security purposes. The correct answer is 1993, indicating that FWTK was released in that year.