Professional Soft-Tech Senior Web Developer interview questions

It was a walkin drive there. Many candidates had appeared. It was aptitude test then face to face round. They asked questions about Palindrome, Pattern making logic, the number is prime or not kind of logic. They asked what is foreign key primary key in my sql. What is diff between primary key and unique key. Sub query syntax. What is client server architecture. What is server side scripting language. What will be sent to browser after executing php code at server end ? Simple logical questions and database schema and concepts. They asked questions about Palindrome, Pattern making logic, the number is prime or not kind of logic. Simple logical questions and database schema and concepts. They asked questions about Palindrome, Pattern making logic, the number is prime or not kind of logic.