A1: Default name space are xtk, nl, nms, ncm, temp . By default namespace while extending any schema is cus.A2: Post EventA3: Plan – Program – Campaign – Delivery

Hi,I am Ayush Manu Jain and have been working at Sapient for the last 1.5 years. My total experience on AEM is 2.1 years and i have also worked on Adobe campaign. Looking forward to learn new things on AEM 6.3Regards,Ayush Manu Jain