Which interface type allows packets to be dropped?
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A. B. C. D.B.
https://www.cisco.com/c/en/us/support/docs/security/firepower-ngfw/200908-configuring-firepower-threat-defense-int.htmlThe correct answer is B. inline.
Inline interfaces are those that are placed in the path of network traffic and are capable of actively dropping packets. They can be used for network security purposes, such as implementing intrusion prevention systems (IPS), firewalls, or other security devices.
When packets flow through an inline interface, they are inspected and evaluated against a set of predefined security rules or policies. If a packet matches a rule that dictates that it should be dropped, the inline interface will actively discard the packet, preventing it from reaching its intended destination.
Passive interfaces, on the other hand, do not actively participate in packet processing and do not have the ability to drop packets. Instead, they are used for monitoring purposes, such as capturing network traffic for analysis or troubleshooting.
ERSPAN (Encapsulated Remote Switched Port Analyzer) and TAP (Test Access Point) interfaces are also used for monitoring network traffic but do not have the ability to drop packets. ERSPAN allows traffic to be mirrored from one network device to another for remote monitoring, while TAP interfaces can be used to create a copy of network traffic for analysis without interrupting the flow of traffic.
In summary, inline interfaces are the only interface type that allows packets to be actively dropped, making them an important component of network security solutions.