Fundamentals Concepts in C#, ASP.NET, WCF (edit)
var vs dynamic key word multicast delegate, what happens if 3 methods returns 3 diff types Binary search over linear search Rest Services WCF: logging client ip on server side without adding it from wcf client using message inspector HTTP handler over .aspx files Events fires in iis when hitting an aspx page Thread Safety in singleton project architecture design pattern used in ur project SP/Triggers/Functions select a date in back and get all months having first day as Sunday. What is IDisposable ------------------------------------------------------------------- what is impersonation. Diff between cluster and non-cluster index impact on performance using indexes when to use structure over class ------------------------------------------------------------------ method overloading in wcf. can we use WCF service dll in a client witout using endpoints. diff between class and interface. what's new in sql server 2008 what's new in C# 4. How would you improve performance of a SP generate a hierarchy from a table having data with parent-child relation steps in code review what warning we face if a virtual method of base class is not overridden in child class what is static class dispose vs finalize role of using key world in c# if we don't use [OperationContract] then what would will happed? when we create a asp.net wcf website, then name the three major files. for a private assembly LocalCopy is true or false what is CLS -------------------------------------------------------- What is dirty read? Where SQL jobs are stored? What is locking? Diff between AngularJS and javascript? What is role of script manager? diff between varchar and nvarchar? SQL Server Performance tuning. ---------------------------------------- what is ABC in WCF what types of binding available in WCF diff between . and # in jQuery write a code block to call ajax call in jquery diff table variable and temp table diff between cluster and non-cluster indexes scope of CTE? types of cacheing? constant vs read only fields when we hit like x.com, what events fires in IIS code for writing factorial diff IEnumberable and IList what is HTTP handler? and tell about IHttpHandler interface types of state management options in .NET page life cycle sequence of module and handler (mhpm) DIFF INTERFACE AND CLASS how we can remove sub-query from SELECT * FROM EMP where ID is not in (sub query)? types of joins? custom http handler for image/pdf file. REST services write code to print Fibonacci series alternative of cursor what new is in C# query to remove duplicate records from a table. query to get parent child relationship from a table using self join and CTE what is full outer join and cartesian join Less.js? Angular.js vs Knockout.js vs Node.js? what is less.js? what is CTE? PLINQ? COALESCE? ROW_RANK? what is static class how to prevent inserting multiple rows in DB (use unique constraint) public class Emp { public void GetAge() {return 45;} } public class Emp1 : Emp { public void GetAge() {return 45;} } will it compile? query for concatenating column values separated by ',' for each customer types of triggers? DIFF INTERFACE AND CLASS protection level and security in WCF how to handle thousands of hits in sql server db instance? suggest options? what is GAC ---------------------------------------- int Sum(int32 x, int 32y) int Sum(int64 x, int64 y) will above code compile ? if then on executing code Sum(1,2), which one will be invoked? diff types of state management techniques in-proc and out of proc session state management Web Farm and Web Garden? diff between delete and truncate what is collation diff table variable and temp table diff between cluster and non-cluster indexes can we use try catch block in a cursor to ignore an error. what is CTE? how we can improve sql server performance code review techniques? what is DCL? how can we improve performance of sp what is co-related sub query? what would you prefer? inline query or SP? can we put redirect link in a gridview control and how how to improve asp.net page performance WHAT IS MULTILEVEL AND MULTIPLE INTERFACE? IS C# SUPPORTS MULTIPLE INHERITANCE? what is pillars of OOPs? What are SDLC? basics about scrum? what are views? can we delete/update/add records using views? in asp.net page there is master page, then page, then two user controls in page. if one clicks on user control button then, what are event sesuencing? types of cacheing? how many non-cluster can we have? what is IsPostBack? waht are ASP.NET temporary files? diff between dataset and data reader? val and ref types, heap and stack and boxing and unboxing a class have an int field. so where int field would be stored? Multilevel and multiple inheritance in C#. singleton design pattern proxy observer ---------------------------------------------------------------------------------------- WAP to check for palindrome number get first two numbers from a sorted array of ints whose sum is 47. Also optimize it order. what is WCF? Types of filter types in WCF routing service? Service versioning via routing and service contract. protocol bridging in wcf routing service. getting sum of +ve and -ve number from a int column in sql server ------------------------------------------------------------------------------------- What are the challanges to deploy a website in Load Balancing environment? HTTP Handler to fetch imges from database? How QA process is done in MIS? What is single sign off? How to manage file saving in load balancing mode? WCF security, How authentication is manage in WCF and who manages certificates/token? ---------------------------------------------------------------------------------------- WAP to count occurrence of 'o' in a given string. WAP to count total numbers of zeros from 1 to n. ------------------------------------------------------------------------------------- WAP to eliminate duplicate occurrence of integers from a set = {1,1,1,2,3,3,4,4,4,4,9,9} WAP for simple Threading in C#. There are four interfaces having a method with same name. How a class implements these interfaces? An Interface has four methods say m1,m2,m3,m4. Now there is a base class A and a child class of A say B. A implements Interface. Now design class A and B such that A override methods m1 and m2 & B override m3 and m4. ----------------------------------------------------------------------------------------------------------------------------- types of functions in SQL and how we can use table valued function in SP diff CTE and temp table performance of SP default isolation level for the Microsoft SQL Server Database Engine HTTP Handler and give an example of the same in your project Why you have static classes for utility class Can a class has private access specifier?[You can create a private class, as a member of another type] if we disable cookie, then how form authentication work? Fault Contract and structural fault handling in WCF Entity Framework: how you will save and entity in DB Exception handling in your project. single sign on and WIF ------- ---------------------------------------------------------------------------------------------------------------------------- how to update product price category wise? order of execution of instance and static constructors in a class hierarchy. How instance and class level members and variables are stored in memory. what is form authentication. what is impersonation. page life cycle in master, parent and child controls. how to improve performance of a sp. CTE and diff between table variable and CTE. temp tables? diff between factory and IOC. locking and read only cursor. what is lambda expression. which design pattern you have used in your project? ----------------------------------------------------------------------------------------------------------------------------- new features of SQL Server 2008. there is a virtual method in a base class and a child class override that method. Now there is another child of child class. We want to prevent that method to be overridden in second child class. how will do that? Class vs interface. there is button control on a web page. now we refresh that page. which events would be fired again? On successive click on a button how we prevent multiple saving in DB from code? how to take left outer join in LINQ. ----------------------------------------------------------------------------------------------------------------------------- what is polymorphism. thread safe singleton pattern. class vs interface. in a maintenance state, what would you prefer? abstract class or interface. request handling in IIS. diff between factory and IOC. --------------------------------------------------------------------------------------------------------------------------- Fault and Fault Contract. Façade design pattern. Diff Factory and Abstract Factory. Why LINQ is slow. There are n number of services endpoints but client doesn't want to expose them in client project but single at a time. what would be the solution? ----------------------------------------------------------------------------------------------------------------------------- How to handle 500 users in IIS. Load balancer in IIS. ABC in WCF. Diff types of Binding in WCF. How to decide type of a binding to be used. REST and types of binding to prefer for REST and why. Why we prefer REST. diff between udf. and sp. -------------------------------------------------------------------------------------------------------------------------------- WCF vs ASMX Connection pooling in which even we have to add attribute in controls iis recycle can we rename .asmx file .svc? points to be considered while deploying the application over load balancer -------------------------------------------------------------------------------------------------------- Method Level Security in WCF LOCKING using EF Binding for backward compatibility WCF security Unity vs MEF SOLID and best practices MVC vs MVVM How to use observer design pattern How to use MEF for extensibility WCF service versioning ORM over ADO.NET Method overloading in WCF ------------------------------------------------ can private virtual method overridable in child class? can class constructor has return type? class vs interface? can normal class can has abstract method dispose vs finalize can multiple catch block be executed name some of exception in c# value vs ref type. name some of them how to implement priority que? what data structure you would use for recursion? MSMQ user control vs custom control serialization how to know that which WCF service is hitted most? in which scenario Web API would be better why not you replace your wcf web services by web API wcf vs asmx how to know that which aspx page is hitted how many times? how to maintain states for user level and for page level? jQuery vs JavaScript primary key vs unique key? can all column of unique be not null what is composite primary key DBMS vs RDMBS delete, truncate, drop DML, DDL, TCL, DCL union, intersection and diff operator types of joins
References
https://docs.microsoft.com/vi-vn/dotnet/framework/wcf/wcf-and-aspnet-web-api
https://gist.github.com/gtechsltn/e8ae20408263c033a00eede869472176
https://gist.github.com/akhilbhardwaj23/1312657e88e4e70400c2
https://medium.com/@smitagudale712/cartesian-product-vs-full-outer-join-in-sql-server-5742a67c656f
https://www.c-sharpcorner.com/UploadFile/b19d5a/full-outer-join-and-cross-join-in-sql-server-2008/
WCF
Basic Concepts of WCF Service With simple Example. - DotNetFunda.com
A Beginner's Tutorial for Understanding Windows Communication Foundation (WCF) - CodeProject
Fundamental Windows Communication Foundation Concepts - WCF | Microsoft Docs
1.3. Fundamental WCF Concepts - Learning WCF [Book] (oreilly.com)
WCF and ASP.NET Web API - WCF | Microsoft Docs
WCF: Không dùng với SignalR được
Web API: Có thể dùng SignalR
WCF + Web API - Advanced Concepts
WCF Proxy Cookie Inspector
WCF - Authentication and Authorization in Enterprise Architecting (c-sharpcorner.com)
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