using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Text; using System.Threading.Tasks; namespace PrepForSandisk1 { class Program { static void Main(string[] args) { int[] myArray = { 7, 2, 5, 10, 3 }; int[] sortedArray = ArraySorter<int>(myArray); string a = "abc_y_x"; string b = "bac_x_y"; Console.WriteLine(SameChars(a, b)); } // 1. Write a method which receive an array and sort it in descending order. static T[] ArraySorter<T>(T[] arrayToSort) { return arrayToSort.OrderByDescending(c => c).ToArray<T>(); } // 2. How syntax of class which inherits from another class look like? class A { }; class B : A { }; // 3. How you tell a program to wait for 1 second? static void TellProgramToSleep(int seconds) { System.Threading.Thread.Sleep(seconds); } // 4. Is it possible to implement “Bungie sort” algorithm in order of n*log(n)? // Never heard of bungie sort // 5. Is it possible to create a WCF service and WCF data service in one model (Yes, No, Maybe)? // 6. When do you use Thread.Keep? // Never, such function does not exist // 7. Have you read “C# fundamentals” by..? // No, read several others // 8. Do basicHttpBinding supports HTTPS (Yes, No, Maybe)? // Yes // 9. Can System.Array contain multiple data types, if so, write the code? // Yes, 9.1 Array of objects // 9.2 Array of Interfaces where each cell contains a different instance of the object // 9.3 Array of parent classes where each cell may contain a different instance of that object // 10. What is WPF trigger and what types of trigger exist? // List of setters that are executed based on provided conditions (http://wpftutorial.net/Triggers.html) // 11. What is the difference between managed and unmanaged code? // Unmanaged is compiled to native machine code (CPU instructions) and is run by the CPU // Managed code passes through two step compilation process before it becomes machine code // it is compiled into IL and then by the JIT to machine instruction - so its also compiled into machine code. // Before running this machine code the CPU loads the CLR code which provides a set of libraries for the application to use // 12. What is the difference between Stuct and Class? // struct is a value type, class is not - this means that.... // 13. How can you call unmanaged code from c#? // example: [DllImport("kernel32.dll")] // static extern int GetDriveType(string lpRootPathName); // 14. Are you familiar with DevExpress? // yes // 15. Write a program which restarts the system // 15.1 use console: System.Diagnostics.Process.Start("ShutDown", "-r"); //restart // 16. Describe a three tier model. // talk about MVC // 17. What is the difference between int and long data types? // int 32 bit, long 64 // 18. How you deny inheritance from a class? // use the "sealed" accessor // 19. What keyword you’ll use to query unique entries from SQL? (UNIQUE, DISTINCT, TOP, NONE OF THE ABOVE) // DISTINCT // 20. What is/are the protocol/s that WCF service will response with, when using webHttpBining (json, binary, xml, all of them) // all of them // 21. What Debug.Assert() do? // If a condition is fulfilled, popup a messagebox that allows you to stop debugging // Technical Interview Questions // Logic question: //Class Dict //- Bool Insert(string x) //- Bool Check(string y) // For ex. we insert strings: “abc_x_y”, “y_x_bac” which considered equal strings // How you’ll implement the Check method? (Found a solution using .Net Dictionary but asked to find other solution or implement the Dictionary itself) // Answer: static private bool SameChars(String firstStr, String secondStr) { char[] first = firstStr.ToArray(); char[] second = secondStr.ToArray(); Array.Sort(first); Array.Sort(second); bool res = first.Equals(second); bool equals = first.SequenceEqual(second); return res; } // Write a program that invokes a process, like notepad.exe opening text file. static private void InvokeNotePad() { Process notePad = new Process(); notePad.StartInfo.FileName = "notepad.exe"; notePad.StartInfo.Arguments = "ProcessStart.cs"; notePad.Start(); } // How to debug native code marshaled from .NET in VS? // // Have you developed multi-threaded applications? // Yes // Do know what Telerik is? // Yes, company for .NET controls, like DevX } }

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