Question

which of the following statements is true of firewalls? answer unselected they are placed all over the internet. unselected they are frequently used to prevent unauthorized internet users from accessing private networks connected to the internet. unselected they completely prevent network penetration by outsiders and therefore should be viewed as the sole element required for the overall security plan. unselected they are implemented in hardware but not software.

Answer 1

They are used to prevent unauthorized internet users accessing private networks.

Step-by-step explanation: