Unisys interview question

Q1. tell me something about yourself. Q2.write a program to reverse the string. Q3.write an SQL query to get the 2nd largest value from the database. Q4.explain all the project and question based on the project. Q5.layers of the OSI Q6.what is pagination. Q7.Difference between Array and vector. Q8.questions on link list how to insert, delete the node.