350-001 · Question #7
Which three fields are optional in an OSPFv3 external LSA? (Choose three.)
The correct answer is A. Forwarding Address B. External Route C. Reference Link-State ID. As with OSPFv2, the AS-External LSA advertises prefixes external to the OSPF routing domain; one LSA is required for each external prefix advertised. However, the format of the OSPFv3 As- External LSA (Figure 9-10) is different from its OSPFv2 counterpart. Figure 9-10. OSPFv3…
Question
Which three fields are optional in an OSPFv3 external LSA? (Choose three.)
Exhibit
Options
- AForwarding Address
- BExternal Route
- CReference Link-State ID
- DOption
- EPrefix Options
How the community answered
(49 responses)- A86% (42)
- D10% (5)
- E4% (2)
Explanation
As with OSPFv2, the AS-External LSA advertises prefixes external to the OSPF routing domain; one LSA is required for each external prefix advertised. However, the format of the OSPFv3 As- External LSA (Figure 9-10) is different from its OSPFv2 counterpart. Figure 9-10. OSPFv3 AS-External LSA me% 20I/images/09fig10_alt.jpg
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