Companies that offer remote jobs know that everyone has times when it is a challenge to stay focused when working at home. Talk about some specific things that can occur—a friend calls for a chat, the sink is full of dishes, or the kids are home from school—and discuss your specific strategies to limit distractions and stay focused.
If you’ve never worked remotely before, talk about how you’ve tackled distractions while working in the office. In-person offices can have just as many—if not more—distractions, and explaining how you handled them can give the interviewer insight into how you’ll deal with distractions while working at home.