Mike Steib, CEO of XO Group, which runs websites The Bump, The Nest and The Knot, and Carla Harris, author of “Strategize to Win,” visit Kathie Lee and Hoda with advice on how to handle job interview questions that might catch you off guard, like “What are the three most used apps on your phone?” (“Is it bad if I say ‘What’s an app?’” Kathie Lee asks.)