Your Way to get officially recognized Certificate in German
Normally, you will need a certification when you want to travel to Germany for Visa purposes, or study requirements, or when you want to show off your language skills on your Resume.
In my Experience, I've never needed the certificate to get a job interview, nor was it a condition to get accepted in any of the jobs I had.
Below are all the information you need to get certified in the German language, and Tips from people who passed the certification Exams successfully
C1 Zertifikat
This is the certification you will go for if you want to continue your university study in Germany or Post-Grad studies. Also it is a requirement for some jobs like working as doctor in Germany.
B2 Zertifikat
This Certificate is required for the majority of jobs in Germany, and is also a condition for working there. Most of the Scholarships require it as condition to enter. Also, with B2 you can work in any company in Egypt, which requires fluent level of German
B1 Zertifikat
Let's just say, you will only take this certificate, because it is required to get certain visa, or job offer. Other than that, you better just study more and get the B2