Which choice best describes the difference between a namespace and an assembly?
A namespace has logical units that are physically grouped together for assemblies. Assembly classes are available in your program and will be logically grouped. Source
A namespace has logical units that are physically grouped together. An assembly does not have any classification.
Namespace is the logical naming decided at design time by the developer. Scope for a particular type is defined at run time using an assembly.
Namespace contains code to form MSIL (Microsoft Intermediate Language). An assembly contains a set of unique names.