19 questions for “STL”

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Information Technology

19 questions in 5 technologies

#	Question	Technology	Topic	Level
1	What is the role of IHostLifetime, and how does it differ across console applications, Windows Services, and containers? .NET › Generic Host	.NET	Generic Host	Intermediate
2	How does the HostListener decorator let a directive respond to events on its host element? Angular › Directives	Angular	Directives	Intermediate
3	How can a metaclass be used to implement the Singleton design pattern more robustly than overriding __new__ alone? Python › Metaclasses & Class Customization	Python	Metaclasses & Class Customization	Advanced
4	How would you implement a memory-efficient sparse matrix representation in Java when a large 2D array would mostly contain zero/default values, avoiding the memory waste of a full dense array? Java › Arrays & Multidimensional Arrays	Java	Arrays & Multidimensional Arrays	Advanced
5	What is a lambda expression in C++? C++ › Lambda Expressions	C++	Lambda Expressions	Beginner
6	What is the capture list in a lambda? C++ › Lambda Expressions	C++	Lambda Expressions	Beginner
7	Where are lambdas most commonly used? C++ › Lambda Expressions	C++	Lambda Expressions	Beginner
8	What is the difference between auto x = {…} and auto x{…}? C++ › Type Deduction & auto	C++	Type Deduction & auto	Beginner
9	What is std::string and how does it differ from a C-string? C++ › Strings & string_view	C++	Strings & string_view	Beginner
10	How do you convert between std::string and numbers? C++ › Strings & string_view	C++	Strings & string_view	Beginner