NETWORK SECURITY
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Physical layer
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Data link layer
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Network layer
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Application layer
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Detailed explanation-1: -Proxy Firewall Meaning A proxy firewall is the most secure form of firewall, which filters messages at the application layer to protect network resources.
Detailed explanation-2: -Application filtering is the most sophisticated level of filtering performed by the firewall service and is especially useful in protecting the network against specific types of attacks such as malicious SMTP commands or attempts to penetrate the local DNS servers.
Detailed explanation-3: -An application firewall is a type of firewall that governs traffic to, from, or by an application or service. Application firewalls, or application layer firewalls, use a series of configured policies to determine whether to block or allow communications to or from an app.
Detailed explanation-4: -A proxy firewall is a network security system that protects network resources by filtering messages at the application layer.