Is the statement "Who is like you, O LORD, among the gods?" in Exodus 15:11 one of the answers to Pharaoh's question "Who is the LORD?" (Exodus 5:2)? Note, this would not be answer directly to Pharaoh, but an answer to the reader of Exodus.
But Pharaoh said, “Who is the LORD, that I should obey his voice and let Israel go? I do not know the LORD, and moreover, I will not let Israel go.” (Exodus 5:2, ESV)
The lemma ידע (know) occurs 45 times in 43 verses (Logos Bible Software search) and is a major theme in Exodus. The ten plagues answered Pharaoh's question.
Pharaoh will not listen to you. Then I will lay my hand on Egypt and bring my hosts, my people the children of Israel, out of the land of Egypt by great acts of judgment. The Egyptians shall know that I am the LORD, when I stretch out my hand against Egypt and bring out the people of Israel from among them.” (Exodus 7:4–5, ESV)
This verse in the song seems to wrap up the answer to Pharaoh's question:
“Who is like you, O LORD, among the gods? Who is like you, majestic in holiness, awesome in glorious deeds, doing wonders? (Exodus 15:11, ESV)