Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF Interface Types and Network Types):
“Nokia 7750 SR OS supports the broadcast and point-to-point network types for OSPF. Non-broadcast and point-to-multipoint are not supported.”
A (Correct): Broadcast networks — e.g., Ethernet LANs.
C (Correct): Point-to-point networks — e.g., serial links, direct router-to-router connections.
Incorrect options:
B: NBMA is not supported natively.
D: Point-to-multipoint is not supported.
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