COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
proxy
|
|
|
cryptography
|
|
|
firewall
|
|
|
Contingency plan
|
|
|
intrusion detection system
|
Detailed explanation-1: -The goal of a DMZ is to add an extra layer of security to an organization’s local area network. A protected and monitored network node that faces outside the internal network can access what is exposed in the DMZ, while the rest of the organization’s network is safe behind a firewall.
Detailed explanation-2: -Dual firewall The first firewall (also called the “front-end” or “perimeter” firewall) must be configured to allow traffic destined to the DMZ only. The second firewall (also called “back-end” or “internal” firewall) only allows traffic to the DMZ from the internal network.
Detailed explanation-3: -A demilitarized zone (DMZ or DZ) is an area in which treaties or agreements between nations, military powers or contending groups forbid military installations, activities, or personnel.