IT Security第 67 / 100 题
What is the purpose of a firewall?
a.To speed up the internet connection
b.To store user passwords
c.To monitor and control incoming and outgoing network traffic based on rules
d.To defragment the hard drive
解析
A firewall inspects network traffic and permits or blocks it according to a set of security rules. It acts as a barrier between trusted internal networks and untrusted external ones. Firewalls can be hardware appliances, software, or both.
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