LINQ General Interview Questions
  1. What do you mean by Query and Sequence operators in LINQ?
  2. LINQ query is executed in which statement?
  3. Define Extension Methods.
  4. What are Anonymous data types?
  5. What is an Anonymous function?
  6. Explain Lambda Expression.
  7. What is meant by Action in LINQ?
  8. What is a Predicate delegate in LINQ?
  9. What is the advantage of LINQ over stored procedures?
  10. What is the advantage of using LINQ Dataset?
  11. What are LINQ query expressions?
  12. What is PLINQ?
  13. What is the difference between the Take and Skip clause?
  14. What are the types of LINQ?
  15. List out the three main components of LINQ?
  16. Explain what is “LINQ to Objects”?
  17. Mention what is the role of DataContext classes in LINQ?
  18. In LINQ how will you find the index of the element using where() with Lambda Expressions?
  19. Explain how LINQ is useful than Stored Procedures?
  20. Define what is Where clause.
  21. Define Linq to XML?
  22. Define compiled queries?
  23. What is a LinqDataSource control?
LINQ Advanced Interview Questions
  1. Explain why SELECT clause comes after FROM clause in LINQ?
  2. When trying to decide between using the Entity Framework and LINQ to SQL as an ORM, what's the difference?
  3. What is the difference between First() and Take(1)?
  4. When to use First() and when to use FirstOrDefault() with LINQ?
  5. Explain how standard query operators useful in LINQ?
  6. What is Expression Trees and how they used in LINQ?
  7. Explain what are LINQ compiled queries?
  8. Define what is Let clause?
  9. Explain what is the difference between Skip() and SkipWhile() extension method?
  10. Explain how you can differentiate between Conversion Operator “ToDictionary” and “IEnumerable” of LINQ?
  11. Explain what is the difference between Statement Lambda and Expression Lambda?
  12. Explain what is the use of System.XML.Xlinq.dll?
  13. Explain API in Linq?
  14. What do you mean by an object-relational designer?
  15. On what parameter does the Groupby clause group the data?
  16. Which extension method you need to run a parallel query in PLINQ?
  17. What are the benefits of a deferred execution in Linq?
  18. Which Command-line Tool Generates Code and Mapping for the Linq to SQL Component Of .net Framework?
  19. What is Select() and SelectMany() in LINQ?
  20. What are entity classes in LINQ?
  21. What are Quantifier Operations in LINQ?