The network architect wants to reduce the OSPF database in the network by using summarization techniques. In which two places in the network can summarization be applied to maximum effect? (Choose two.)

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D. on the routing process of all ABR routers ABRs condense Type 3 LSAs (inter-area routes) using the `area X range` command configured under the OSPF routing process, which aggregates multiple specific prefixes into a single summary LSA advertised into adjacent areas, directly reducing the LSDB size network-wide. E. on the routing process of all ASBR routers ASBRs condense Type 5 (and Type 7) external LSAs using the `summary-address` command under the OSPF routing process, which aggregates external routes redistributed into OSPF before they are flooded throughout the OSPF domain, reducing external LSA count.

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A. on the OSPF links of all ABR routers Summarization in OSPF is not configured on a per-interface or per-link basis; the `ip ospf` interface commands control authentication, timers, and costs, not prefix aggregation.

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B. on the OSPF links of all ASBR routers Summarization cannot be applied to OSPF links on ASBRs; the summary-address command must be applied in the OSPF routing process, not on individual interfaces.

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C. on the OSPF links of all backbone routers Backbone routers (internal area 0 routers that are not ABRs or ASBRs) do not have summarization capability because they do not sit on inter-area or redistribution boundaries.

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F. on the routing process of all backbone routers Internal backbone routers that are not ABRs or ASBRs have no OSPF summarization commands available in their routing process; only ABRs and ASBRs perform summarization.

The network architect wants to reduce the OSPF database in the network by using summarization techniques. In which two places in the network can summarization be applied to maximum effect? (Choose two

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