QA stands for quality assurance
BA stands for business analyst
I am not sure what QA, and BA does but its self explanatory, and also the easiest of all the IT jobs. I have friends who have little to no knowledge in computing world but yet they are working as QA, BA.
SAP is an ERP( Enterprise resource planning ) software. Traditionally data were confined within the boundaries of each department, and business activities such as data sharing would be hard. With the introduction of ERP software such as SAP now the departments are cross functional, and data sharing from various department within an organization such as HR, Finance is lot easier.
Linux is a open source operating system( free) mainly used as a server operating system. Recently Linux celebrated ( i am not sure but i think it was 20 years anniversary ) in which it claimed that the Linux OS are widely used in servers than the one from Microsoft.
Python is a open source programming language.
Cloud in its simplest form is an emerging technology where all the services can be accessed via internet without having to install a dedicated application to you computer .
Algorithm is just a set of instruction used to make calculation mainly in programming.
