I was looking for experienced positions and interviewed with Calsoft. As I was not available for an onsite interview, I had 4 rounds all over the phone or online. The first round was just information; the second and third rounds were technical rounds. How to find the route a connection takes? ifconfig - arguments DNS/DHCP WAN Optimization static and dynamic IP address how to view contents of tarball without extracting how to list the structure of a directory? what is traffic shaping? what goes into a test case? what is the defect lifecycle puzzle: John’s mother has 4 kids: jan, feb, march, and? linux: signal sent when you kill a process talked about QA: logging; what would you incorporate into your logger what are the important aspects you would consider in a test framework valgrind What TCP ports exist; name any 10? SSH port number