NETWORK SECURITY
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Next-generation firewall (NGFW)
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Packet filter
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Stateful
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Application layer
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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: -Next-Generation Firewall: This type of firewall uses deep packet inspection to analyze the data inside each packet. It can identify specific applications and protocols and can block or allow traffic based on the application or protocol.
Detailed explanation-3: -The first firewalls were developed in the 1980s at the American technology companies Cisco Systems and Digital Equipment Corporation. These “network layer” firewalls judged packets based on simple information such as their apparent source, destination, and connection type.