A packet filtering firewall can
(A) deny certain users from accessing a service
(B) block worms and viruses from entering the network
(C) disallow some files from being accessed through FTP
(D) block some hosts from accessing the network
Answer: (D)
Explanation: A packet filtering firewall can block particular hosts from accessing the network. For more details, refer this: https://www.geeksforgeeks.org/introduction-to-firewall/
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