Persistent Systems Interview Question

1)Differnece between c++ and Java 2) tcp and udp difference 3) ipv4 and ipv6 difference. 5) abstraction and encapsulation difference 6) what is scheduling 7) what are the access modifiers in c++ and java++ 8) default access modifier. 9) super keyword 10) This pointer IN c++ , is it possible to use this in Java? 11) components of the OS 12) what is rdbms? 13) acid properties of rdbms 14) what is stack, practical application 15) what is queue, practical application. 16) what is Jvm, jre and jdk. 17) explain the entire process of what happens after you compile the code in Java. 18) explain your project. 19) project related questions 20) how to find duplicate records. 21) joins in sql 22) operator overloading. 23) what is CPU, hardware or software.