Here's a breakdown of the pronunciation:
* 이름 (i-reum): "name"
* 이 (i): Pronounced like the "ee" in "see"
* 름 (reum): Pronounced like the "rum" in "rumor"
* 무엇 (mu-wot): "what"
* 무 (mu): Pronounced like the "moo" in "moon"
* 엇 (wot): Pronounced like the "what" in "what"
* 입니까 (im-ni-kka): "is it?" or "are you?" (polite form)
* 입 (im): Pronounced like the "im" in "dim"
* 니 (ni): Pronounced like the "knee" in "knee"
* 까 (kka): Pronounced like the "ka" in "car"
When speaking, the pronunciation can be slightly different depending on the context and the speaker's dialect.
However, this phonetic breakdown should give you a good understanding of how to pronounce the phrase.