COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK SECURITY AND CYBERSECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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first generation firewalls
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second generation firewalls
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third generation firewalls
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fourth generation firewalls
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Detailed explanation-1: -First generation firewalls were relatively simple filter systems called packet filter firewalls, but they made today’s highly complex security technology for computer networks possible. Packet filter firewalls, also referred to as stateless firewalls, filtered out and dropped traffic based on filtering rules.
Detailed explanation-2: -The most basic type of firewall is a packet-filtering device, also known as a screening router. Packet-filtering firewalls are routers that operate in the low levels of a network protocol stack.
Detailed explanation-3: -In 2008, Palo Alto Networks delivered the industry’s first next-generation firewall (NGFW). Unlike UTMs, true NGFWs offered natively integrated capabilities, including application, user, and content awareness; intrusion prevention; web security; and more, in addition to stateful firewall capabilities.
Detailed explanation-4: -Next-generation firewalls (also known as second generation firewalls) are firewalls which are enhanced with intrusion prevention and application intelligence.
Detailed explanation-5: -To do this, firewalls have developed capabilities roughly related to the three generations of firewalls: Packet Filtering, Circuit-Level (State-ful Packet Filtering), and Application Layer Firewalls.