Which of the following statements regarding the stateful inspection firewall is true?
A.
When the stateful inspection firewall checks packets, packets of one same connection are not correlated.
B.
Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.
C.
The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.
D.
The stateful inspection firewall needs to match the rules for each incoming packet.
A stateful inspection firewall tracks the state of network connections and only matches the initial packet against its rule set. Subsequent packets in the same connection are matched in the state table. Contrary to this, UDP packets can be inspected by correlating them with connection states, and packets in a single connection are always correlated .
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