Triple Point Technology Software Team Leader interview questions

1) provided questions document which was supposed to send back within 2 days 2) provided Carworkshop multi-threaded problem to be solved using design patterns 3) F2F interview with panel - brief about yourself, - brief about recent complex framework you designed & implemented - questions around design & technology used - how to handle atomic transactions using java, two phase commit - locking on database table - design cache class - how to decide correct thread pool size for executors 4) telephonic discussion - brief about yourself - any recent project with design & technologies used - database concurrency management through java application - how to stop thread, use of volatile in multi-threaded application - scheduling threads, different thread pools provided in java - ACID of RDBMS - what is memory leak, best practices to prevent memory leak, simple program to create memory leak - java GC types, how parallel GC works - Java memory management - features of java 8 - xml parser, which one to use when? -exception handling in concurrency framework/package