Match the destination network routing table entry type with a defintion.

1. DoS (Denial of Service) – It can crash applications or network services. It can also flood a computer or the entire network with traffic until a shutdown occurs because of the overload.
2. MITM (Man-In-The-Middle) – It occurs when threat actors have positioned themselves between a source and a destination and can actively monitor, capture, and control the communication transparently.
3. Sniffer attack – It uses an application or device that can read, monitor, and capture network data exchanges and read network packets.

The description “It constructs an IP packet that appears to originate from a valid address inside a corporate network” could be referring to spoofing attacks, where an attacker deceives a system by masquerading as a legitimate entity. However, since there is no corresponding category for this description in the provided list, it does not match any of the listed attack categories.