How to ask “What is the difference between A and B?” in Japanese

I think it’s time to write down this phrase and I always ask my Japanese teacher in English and I should stop.

Sentence structure:

• 「A」と「B」はどう違いますか？
• 「A」と「B」の違いは何ですか？

For example for asking: What’s the difference between 勤める and 働く?

• 「勤める」と「働く」はどう違いますか？
• 「勤める」と「働く」の違いは何ですか？