Is alliteration the repetition of consonant sounds in poetry?

The correct answer to this question is True. Alliteration is common in poetry, as well as in writing like magazines advertisements, tongue-twisters, and headlines. It is easy to spot alliteration because, throughout the sentence, the first consonant is repeated.

An example is a popular sentence learned in nursery school, which says, "Sally sells sea-shells by the sea-shore." The constant consonant in the sentence is the letter S. Alliteration doesn't just have to be a sentence. It can also be a name. Examples of names with alliteration include John Jones, Gary Graham, and Heather Hunter. In all of these names, the first and last names start with the same consonant.