The telc Deutsch A2 exam certifies that you can communicate in familiar everyday situations. It is often the halfway point on the way to B1 and is used as an interim goal in many integration courses.
Berlin has one of the densest concentrations of language schools in Germany, from BAMF-funded integration courses to evening classes for people in work.
There is nothing currently scheduled for telc German A2 in Berlin. The language schools here still take enquiries.