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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Caching Proxy
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IP Proxy
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Content Filter
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Web Security Gatetway
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Detailed explanation-1: -Broadly speaking, a computer firewall is a software program that prevents unauthorized access to or from a private network. Firewalls are tools that can be used to enhance the security of computers connected to a network, such as LAN or the Internet.
Detailed explanation-2: -Proxy firewalls filter traffic at the application layer, which is Layer 7 of the Open Systems Interconnection model.
Detailed explanation-3: -a. Routers can only get information on network layers, it cannot get in-depth information. While application proxy firewall can analyze to get in-depth information. That is the maindifference of audit logs of a screening router and application proxy firewall.
Detailed explanation-4: -At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet. A firewall’s main purpose is to allow non-threatening traffic in and to keep dangerous traffic out.