If you check the box Use Aggressive Mode in the IKE Properties dialog box, the standard:

A.
three-packet IKE Phase 2 exchange Is replaced by a six-packet exchange
B.
three-packet IKE Phase 2 exchange is replaced by a two-packet exchange
C.
six-packet IKE Phase 1 exchange is replaced by a three-packet exchange
D.
three-packet IKE Phase 1 exchange is replaced by a six-packet exchange
D.
three-packet IKE Phase 1 exchange is replaced by a six-packet exchange
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in this question the answer is C
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Aggressive mode is 3 packet exchange
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C is correct
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I choose C
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