1. Name two non-functional requirements expected of every SaaS

2. What are some of the advantages of using computer clusters instead of big mainframes?

3. Say you enter the following URL in your web browser: https://abc.com/hello/world?a=b What hostname did you connect to? Which HTTP method did you use? Which port? What query term?

4. HTTP is a stateless protocol. What mechanism can a server-side app use to find out whether consecutive requests come from the same user? How does this mechanism work?

5. Write a CSS selector to match all divs with class hello