What are two reasons to implement passive interfaces in the EIGRP configuration of a Cisco router? (Choose two.)
- to provide increased network security
- to exclude interfaces from load balancingto shut down unused interfaces
- to mitigate attacks coming from the interfaces
- to avoid unnecessary update traffic
Explanation: Two primary reasons for implementing passive interfaces in EIGRP routing are to suppress unnecessary update traffic, such as when an interface is a LAN interface with no other routers connected, and to increase security controls, such as preventing unknown rogue routing devices from receiving EIGRP updates.
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