I applied through employee referral. However, you can apply for this position anytime, because always there is a vacancy for tech support. First Round was an HR Round: Normal HR Questions and be confident while you speak and you must have little bit knowledge about your job role. Second Round is Technical Aptitude: This test contains a 30 Basic questions(with 4 options) TIME: 30 Min. Questions were generally based on a basic computer(OS, SQL, Linux) and aptitude like: what is a virtual memory, deadlock condition, routing, SQL queries, what is the frequency of IEEE 802.11A/ 802.11B?What is FIFO algorithm?Aptitude based on letters like A, C, E,?Ages. Third Round was Technical(Face to face)Round: Most important round to crack. Please ensure that you are confident enough while you speak. They will ask questions about Linux commands, SQL, Networking, Java, Apache Tomcat, Cloud computing. Linux commands questions: 1. command which is used to open a file 2. command which is used to upload and download a file. SQL Questions: They will ask DML, DDL in depth like a difference between alter, update and drop, delete and truncate. They will give you table and ask to write a query to delete a column, and update a content of a table. Networking: Difference between public and private IP addresses, a difference between HTTP and https, what are their port numbers and which one is faster, TCP and UDP, What is Tomcat Apache? port of tomcat? Java: OOPS concepts, What is JSP, servlets? Just be attentive while you are answering. Be calm and cool in this round, because if you crack this round, you are 95% into this company. Manager round: The rest 5% is in this round. Again, he will ask normal Hr Stuff questions. Are you ok to do a night shift? with a 1 year bond?