Sollicitatievraag bij Birlasoft

They have asked questions related to HTML 5, CSS 3, JavaScript, SDLC (Software Development Life Cycle), bootstrap etc. How to make curve corners in table without using CSS 3? How to always align container box to the center of screen? Why use Bootstrap? Best ways to optimize code? Display properties in CSS? Javascript var/let, functions. There are several other questions which I don't remember.