Which type of filtering involves inspecting inbound traffic entering the network from external sources?

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Multiple Choice

Which type of filtering involves inspecting inbound traffic entering the network from external sources?

Explanation:
Inbound traffic from outside the network is examined at the network edge through ingress filtering. This means security controls like firewalls, ACLs, and IDS/IPS assess the packets as they enter, deciding which to permit and which to drop, and can also help prevent spoofed source addresses from reaching internal hosts. Egress filtering, by contrast, applies to outbound traffic leaving the network. Since the scenario describes traffic entering from external sources, ingress filtering is the appropriate term. Implementing filtering in both directions is possible, but the question focuses on what happens to incoming traffic.

Inbound traffic from outside the network is examined at the network edge through ingress filtering. This means security controls like firewalls, ACLs, and IDS/IPS assess the packets as they enter, deciding which to permit and which to drop, and can also help prevent spoofed source addresses from reaching internal hosts. Egress filtering, by contrast, applies to outbound traffic leaving the network. Since the scenario describes traffic entering from external sources, ingress filtering is the appropriate term. Implementing filtering in both directions is possible, but the question focuses on what happens to incoming traffic.

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