In what areas is C++ most commonly used today?

Question

C++ / C#

If this question is read by C++ developers, please answer a couple of questions:
1) In what areas is C++ most often used now?
2) What popular tools are used in addition to C++ or MB frameworks?

Answer 1

Where the speed of the application is important.
Popular libraries: STL, Boost, Qt, Poco

Answer 2

1) Everywhere.
2) Depending on the tasks.