4A0-113 Exam Dumps : Nokia OSPF Routing Protocol Exam

Comprehensive and Detailed Explanation From Exact Extract:

From Nokia 7750 SR OS Routing Protocols Guide (Supported OSPF Area Types):

A: NSSA (Not So Stubby Area) — Supported.

C: Stub Areas — Supported.

B: Level 1 Areas — IS-IS concept, not OSPF.

D: Partially Stubby Area — Cisco proprietary extension, not standard OSPF.

Thus, correct answers: A, C.

Comprehensive and Detailed Explanation From Exact Extract:

According to Nokia 7750 SR OS Routing Protocols Guide (OSPF Neighbor States and DR Election):

"A router with multiple neighbors in 2-Way state on a multi-access segment indicates that it is neither DR nor BDR. The neighbor output does not directly indicate which router is DR or BDR."

In the exhibit, R6 sees neighbors 10.10.10.2 in 2-Way state and 10.10.10.3, 10.10.10.5 in Full state.

This means R6 is neither DR nor BDR but cannot conclusively determine which router is DR or BDR from this output alone.

Therefore, correct answer is B.

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Comprehensive and Detailed Explanation From Exact Extract:

From Nokia 7750 SR OS Routing Protocols Guide (OSPF Neighbor Monitoring):

The correct command syntax on the Nokia 7750 SR is:

show router ospf neighbor

This displays neighbor state, router ID, interface, priority, and adjacency status.

Thus, correct answer: B.

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