COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Context Aware Application Firewall
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Application Layer Firewall
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Host-based Firewall
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Network Layer Firewall
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Detailed explanation-1: -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-2: -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-3: -Application-level Gateways (Proxy Firewalls) Proxy firewalls operate at the application layer as an intermediate device to filter incoming traffic between two end systems (e.g., network and traffic systems).
Detailed explanation-4: -Software-based firewalls provide individual devices significant protection against viruses and other malicious content. They can discern different programs running on the host, while filtering inbound and outbound traffic.