the tech question ask is given a list "Item 1, Item 2, Item 3, Item 4, Item 5" write some pseudo code that will output the list as "item5, item 4, item 3, item 2, item 1". once you provide a simple solution they will ask if you see any potential problem with your solution, which for a five item list isn't much of an issue but for a 1 million item list might become a problem. be prepared to identify such problems and propose solutions.