Which type of firewall technology is considered the versatile and commonly used firewall technology?
A.
static packet filter firewall
B.
application layer firewall
C.
stateful packet filter firewall
D.
proxy firewall
E.
adaptive layer firewall
Explanation:
though application layer firewall is probably more versatile, it is still not being widely used.. in the sense that the application filtering being the main function of the device.
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key words: versatile AND common
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