Which is a set of features that extends the query capabilities of the .NET language syntax by adding sets of new standard query operators that allow data manipulation, regardless of the data source?
You want to create a class of which only a single instance can exist. Which design pattern best fits this objective?
You must connect an app to an online identity provider using OAuth. For authentication, the app uses WebAuthenticationBroker object. You need to make sure the app registers with the provider. Which action do you take?
You want to encapsulate a command request as an object. Which design pattern best fits this objective?
You want to separate object construction from its representation. Which design pattern best fits this objective?
When break is used inside two nested for loops, does control come out of the inner for loop or the outer for loop?
_ pattern works as a bridge between two incompatible interfaces? // wording in question is maybe changed?
