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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Nothing will happen-all devices will stay protected.
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The LAN is compromised, but the DMZ stays protected.
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Only the servers in the DMZ are compromised, but the LAN will stay protected.
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All devices in the DMZ and LAN will be compromised.
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Detailed explanation-1: -Correct, Only the servers in the DMZ are at risk of compromise if the firewall controlling traffic into the DMZ fails, but the LAN will continue to be secure because it takes two hacked devices for an attacker to gain access to the internal LAN.
Detailed explanation-2: -Which of the following is the MOST likely to happen if the firewall managing traffic into the DMZ fails? EXPLANATION If the firewall managing traffic into the DMZ fails, only the servers in the DMZ are subject to compromise.
Detailed explanation-3: -In which of the following situations would you most likely implement a demilitarized zone (DMZ)? You want to protect a public web server from attack. Use a demilitarized zone (DMZ) to protect public hosts on the internet, such as a web server, from attack. The DMZ uses an outer firewall that prevents internet attacks.
Detailed explanation-4: -A DMZ provides an organization with an additional level of protection between an organization’s internal network and the public Internet. By isolating potentially vulnerable systems on a DMZ, an organization decreases risk to its internal systems.