What are two features of OSPF interarea route summarization? (Choose two.)

What are two features of OSPF interarea route summarization? (Choose two.)

• Route summarization results in high network traffic and router overhead.
• Routes within an area are summarized by the ABR.
• Type 3 and type 5 LSAs are used to propagate summarized routes by default.
• ASBRs perform all OSPF summarization.
• ABRs advertise the summarized routes into the backbone.

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