☛ How would you implement the structure of the London underground in a computer’s memory?

☛ How would you store the value of a color in a database, as efficiently as possible?

☛ What is the difference between a queue and a stack?

☛ What is the difference between storing data on the heap vs. on the stack?

☛ How would you store a vector in N dimensions in a datatable?

☛ What type of language do you prefer for writing complex data structures?

☛ What is the number 21 in binary format? And in hex?

☛ What is the last thing you learned about data structures from a book, magazine or web site?

☛ How would you store the results of a soccer/football competition (with teams and scores) in an XML document?

☛ Can you name some different text file formats for storing unicode characters?