What is Side-by-side execution?

23.

The execution of two instances of a same application on a computer.

The ability to run multiple versions of an application or component on the same computer.

The ability to run different applications at the same time.

Both 1 and 2

Side-by-side execution is the ability to install multiple versions of code so that an application can choose which version of the common language runtime or of a component it uses. Subsequent installations of other versions of the runtime, an application, or a component will not affect applications already installed