Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 360

OSPF chooses routes in which order, regardless of route's administrative distance and metric?

Answer options

• A. Intra-Area (O) - Inter-Area (O IA) - External Type 1 (E1) - External Type 2 (E2) - NSSA Type 1 (N1) - NSSA Type 2 (N2)
• B. Intra-Area (O) - Inter-Area (O IA) - NSSA Type 1 (N1) - NSSA Type 2 (N2) - External Type 1 (E1) - External Type 2 (E2)
• C. Intra-Area (O) - Inter-Area (O IA) - NSSA Type 1 (N1) - External Type 1 (E1) - NSSA Type 2 (N2) - External Type 2 (E2)
• D. Intra-Area (O) - NSSA Type 1 (N1) - External Type 1 (E1) - Inter-Area (O IA) - NSSA Type 2 (N2) - External Type 2 (E2)
• E. Intra-Area (O) - Inter-Area (O IA) - NSSA Type 1 (N1) - External Type 1 (E1) - NSSA Type 2 (N2) - External Type 2 (E2)
• F. NSSA Type 1 (N1) - NSSA Type 2 (N2) - Intra-Area (O) - Inter-Area (O IA) - External Type 1 (E1) - External Type 2 (E2) A

Correct answer:

Explanation

The correct answer is A, as OSPF selects routes in a specific order: Intra-Area (O), then Inter-Area (O IA), followed by External Type 1 (E1), External Type 2 (E2), NSSA Type 1 (N1), and finally NSSA Type 2 (N2). Other options present incorrect sequences that do not follow the OSPF route selection hierarchy.