COMPUTER THREATS SECURITY
TYPES OF COMPUTER SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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emails users
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updates
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connections
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data packets
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Detailed explanation-1: -Firewall examines each that are entering or leaving the internal network. Explanation: Firewalls examines each data packets that are entering or leaving the internal network which ultimately prevents unauthorized access.
Detailed explanation-2: -Packet Filtering Firewalls Packet filtering firewalls are the oldest, most basic type of firewalls. Operating at the network layer, they check a data packet for its source IP and destination IP, the protocol, source port, and destination port against predefined rules to determine whether to pass or discard the packet.
Detailed explanation-3: -A proxy firewall (aka application-level gateway) inspects packets at the application layer of the Open Systems Interconnection (OSI) reference model.
Detailed explanation-4: -The first firewalls were packet-filtering firewalls that work at the Network layer of the OSI networking model. They examine the packet headers that contain IP addresses and packet options and block or allow traffic through the firewall based on that information.
Detailed explanation-5: -Stateful inspection firewall State-aware devices not only examine each packet, but also keep track of whether or not that packet is part of an established TCP or other network session.