Top 300 .NET & Angular Interview Questions – Fullstack

سرفصل های دوره

C# / OOPS / ASP.NET MVC / ADO NET / EF / SQL Server / Web API / .NET Core / Angular (with PDF Book)

1 - Introduction

1 - Introduction

1 - Top-100-Angular-Interview-Questions-pdf.pdf

1 - Top-500-DotNet-Interview-Questions-2022-PDF.pdf

2 - Section 1 OOPS & C Main Concepts

2 - Introduction

3 - Q1 What are the main concepts of OOPS What are classes and objects

4 - Q2 What is Inheritance Why Inheritance is important

5 - Q3 What are the different types of Inheritance

6 - Q4 How to prevent a class from being Inherited

7 - Q5 What is Abstraction

8 - Q6 What is Encapsulation

9 - Q7 What is Polymorphism and what are its types

10 - Q8 What is Method Overloading In how many ways a method can be overloaded

11 - Q9 What is the difference between Overloading and Overriding

12 - Q10 What is the difference between Method Overriding and Method Hiding

13 - Q11 What are the advantages and limitations of OOPS

3 - OOPS & C Abstract Class & Interface

14 - Introduction

15 - Q12 What is the difference between an Abstract class and an Interface VIMP

16 - Q13 When to use Interface and when Abstract class

17 - Q14 Why to even create Interfaces

18 - Q15 Do Interface can have a Constructor

19 - Q16 Can you create an instance of an Abstract class or an Interface

4 - OOPS & C General Questions

20 - Introduction

21 - Q17 What are Access Specifiers What is the default access modifier in a class

22 - Q18 What is Boxing and Unboxing

23 - Q19 Difference between String and StringBuilder When to use what

24 - Q20 What are the basic string operations in C

25 - Q21 What are Nullable types

26 - Q22 Explain Generics in C When and why to use them

5 - OOPS & C Exception Handling

27 - Introduction

28 - Q23 How to implement Exception Handling in C

29 - Q24 Can we execute multiple Catch blocks

30 - Q25 What is a Finally block and give an example when to use it

31 - Q26 Can we have only Try block without Catch block

32 - Q27 What is the difference between throw ex and throw

6 - OOPS & C Loops & Collections

33 - Introduction

34 - Q28 What are the Loop types in C

35 - Q29 What is the difference between continue and break statement

36 - Q30 What is the difference between Array and ArrayList atleast 2

37 - Q31 What is the difference between Arraylist and Hashtable

38 - Q32 What are Collections in C and what are their types

39 - Q33 What is IEnumerable in C

40 - Q34 What is Difference between IEnumerable and IEnumerator in C

41 - Q35 Difference between IEnumerable & IQueryable Why to use IQueryable for sql

7 - OOPS & C Methods & Delegates

42 - Introduction

43 - Q36 What is the difference between out and ref parameters

44 - Q37 What is the purpose of params keyword

45 - Q38 What is a Constructor and what are its types

46 - Q39 When to use Private constructor

47 - Q40 What are Extension Methods in C When to use them

48 - Q41 What you mean by Delegate When to use them

49 - Q42 What are Multicast Delegates

50 - Q43 What are Anonymous Delegates in C

51 - Q44 What are the differences between Events and Delegates

8 - OOPS & C Important Keywords

52 - Introduction

53 - Q45 What is this keyword in C When to use it

54 - Q46 What is the purpose of using keyword in C

55 - Q47 What is the difference between is and as operators

56 - Q48 What is the difference between Readonly and Constant variables

57 - Q49 What is Static class When to use it

58 - Q50 What is the difference between var and dynamic in C

59 - Q51 What is Enum keyword used for

9 - NET Framework Basics & Garbage Collection

60 - Introduction

61 - Q52 What are the important components of NET framework What are their roles

62 - Q53 What is an Assembly What are the different types of assembly in NET

63 - Q54 What is GAC

64 - Q55 What is Garbage CollectionGC

65 - Q56 What are Generations in garbage collection

66 - Q57 What is the difference between Dispose and Finalize

67 - Q58 What is the difference between Finalize and Finally methods

68 - Q59 Can we force Garbage Collector to run

10 - NET Framework Threading

69 - Introduction

70 - Q60 What is the difference between Process and Thread

71 - Q61 Explain Multithreading

72 - Q62 What is the difference between Threads and Tasks

73 - Q63 What is the Async and Await in task

11 - NET Framework Others

74 - Introduction

75 - Q64 What is Reflection

76 - Q65 What is Serialization

77 - Q66 What is meant by Globalization and Localization

78 - Q67 What are Window Services

12 - SQL Basics

79 - Introduction

80 - Q68 What is the difference between DBMS and RDBMS

81 - Q69 What is a Constraint is SQL What are its types

82 - Q70 What is the difference between Primary key and Unique key

83 - Q71 What are Triggers and types of triggers

84 - Q72 What is a View

85 - Q73 What is the difference between Having clause and Where clause

86 - Q74 What is Sub query or Nested query or Inner query in SQL

87 - Q75 What is Auto Increment Identity column in SQL Server

13 - SQL Joins

88 - Introduction

89 - Q76 What are Joins in SQL

90 - Q77 What are the types of Joins in SQL Server

91 - Q78 What is SelfJoin

92 - Q79 Write a SQL query to fetch all the Employees who are also Managers

14 - SQL Indexes

93 - Introduction

94 - Q80 What are Indexes in SQL Server

95 - Q81 What is Clustered index

96 - Q82 What is NonClustered index

97 - Q83 What is the difference between Clustered and NonClustered index

98 - Q84 How to create Clustered and NonClustered index in a table

99 - Q85 In which column you will apply the indexing to optimize this query

15 - SQL Stored Procedure Functions & Others

100 - Introduction

101 - Q86 What is the difference between Stored Procedure and Functions at least 3

102 - Q87 How to optimize a Stored Procedure or SQL Query

103 - Q88 What is a Cursor Why to avoid them

104 - Q89 What is the difference between scopeidentity and identity

105 - Q90 What is CTE in SQL Server

106 - Q91 What is the difference between Delete Truncate and Drop commands

107 - Q92 How to get the Nth highest salary of an employee

108 - Q93 What are ACID properties

109 - Q94 What are Magic Tables in SQL Server

16 - ASPNET MVC Part I

110 - Introduction

111 - Q95 What is MVC Model View Controller Explain MVC Life cycle

112 - Q96 What are the advantages of MVC over Web Forms atleast 3

113 - Q97 What are the different return types of a controller Action method

114 - Q98 What are Filters and their types in MVC

115 - Q99 What is Authentication and Authorization in ASPNET MVC

116 - Q100 What are the types of Authentication in ASPNET MVC

117 - Q101 What is Output Caching in MVC How to implement it

17 - ASPNET MVC Part II

118 - Introduction

119 - Q102 What is the difference between ViewData ViewBag & TempData

120 - Q103 How can we pass the data from controller to view in MVC

121 - Q104 What is Partial View

122 - Q105 What are Areas in MVC

123 - Q106 How Validation works in MVC

124 - Q107 Explain the concept of MVC Scaffolding

125 - Q108 What is Bundling and Minification in MVC

126 - Q109 How to implement Security in web applications in MVC

18 - ASPNET Webforms

127 - Introduction

128 - Q110 What are the events in Page Life Cycle In which event the controls loaded

129 - Q111 What is the difference between ServerTransfer and ResponseRedirect

130 - Q112 Where the ViewState is stored after the page postback

131 - Q113 What are the different types of Caching

132 - Q114 What are the Session state management options available in ASPNET

133 - Q115 What is cookie less session

134 - Q116 How to force all the validation controls to run in a page in web forms

19 - ADONET

135 - Introduction

136 - Q117 What are the main components of ADONET

137 - Q118 What is Connected architecture and Disconnected architecture

138 - Q119 What are the different Execute Methods of ADONET

139 - Q120 What are the Authentication techniques used to connect to SQL Server

20 - Entity Framework

140 - Introduction

141 - Q121 What is ORM What are the different types of ORM

142 - Q122 What is Entity Framework

143 - Q123 How will you differentiate ADONET from Entity Framework

144 - Q124 How Entity Framework works OR How to setup EF

145 - Q125 What is meant by DBContext and DBSet

146 - Q126 What are the different types of Approaches used in Entity Framework

147 - Q127 What is the difference between LINQ to SQL and Entity Framework

21 - SOLID Principles

148 - Introduction

149 - Q128 What are SOLID Principles How they different from Design Patterns

150 - Q129 What is Single Responsibility Principle

151 - Q130 What is Openclosed Principle

152 - Q131 What is Liskov Substitution Principle

153 - Q132 What is Interface Segregation Principle

154 - Q133 What is Dependency Inversion Principle

155 - Q134 What is DRY principle

22 - Design Patterns

156 - Introduction

157 - Q135 What are Design Patterns and what problem they solve

158 - Q136 What are the types of Design Patterns

159 - Q137 What are Creational Design Patterns

160 - Q138 What are Structural Design Patterns

161 - Q139 What are Behavioral Design Patterns

162 - Q140 What is Singleton Design Pattern

163 - Q141 How to make singleton pattern thread safe

164 - Q142 What is Factory pattern Why to use factory pattern

165 - Q143 How to implement Factory method pattern

23 - Web API Basics

166 - Introduction

167 - Q144 What is Web API What is the purpose of Web API

168 - Q145 What are Web API advantages over WCF and web serivces

169 - Q146 What is Rest and Restful

170 - Q147 Is it possible to use WCF as Restful services

171 - Q148 What are HTTP verbs or HTTP methods

172 - Q149 How to consume Web API from a NET MVC application

173 - Q150 What is the difference between Web API and MVC Controller

24 - Web API Authentication & JWT

174 - Introduction

175 - Q151 What is Basic Authentication in Web API

176 - Q152 What is API Key Authentication in Web API

177 - Q153 What is Token based authentication

178 - Q154 What is OAuth

179 - Q155 What is JWT Authentication

180 - Q156 What are the parts of JWT token

181 - Q157 Where JWT token reside in the request

25 - Web API More

182 - Introduction

183 - Q158 How to test Web API What are the tools

184 - Q159 What are main Return Types supported in Web API

185 - Q160 What is the difference between HTTPResponseMessage and IHttpActionResult

186 - Q161 What is Content Negotiation in Web API

187 - Q162 What is MediaTypeFormatter class in Web API

188 - Q163 What are Response Codes in Web API

26 - NET Core Basics

189 - Introduction

190 - Q164 What is NET Core

191 - Q165 What is NET Standard

192 - Q166 What are the advantages of NET Core over NET framework

193 - Q167 What is the role of Programcs file in ASPNET Core

194 - Q168 What is the role of Startupcs file

195 - Q169 What is the role of ConfigureServices method

196 - Q170 What is the role of Configure method

197 - Q171 What is the difference between ConfigureServices & Configure method

27 - NET Core Dependency Injection

198 - Introduction

199 - Q172 What is Dependency Injection

200 - Q173 Why to use Dependency Injection

201 - Q174 How can we inject the dependency into the controller

202 - Q175 What are the types of Dependency Injection

203 - Q176 How to use Dependency Injection in Views in ASPNET Core

204 - Q177 What are the types of Service Lifetimes of an object instance in ASPNET

205 - Q178 What is AddSingleton AddSoped and AddTransient method

28 - NET Core Middleware

206 - Introduction

207 - Q179 What is Middleware in ASPNET Core

208 - Q180 How ASPNET Core Middleware is different from HttpModule

209 - Q181 What is custom middleware How to add custom middleware in ASPNET Core

210 - Q182 What is Request Delegate

211 - Q183 What is Run Use and Map method

29 - NET Core Hosting & Routing

212 - Introduction

213 - Q184 What are the types of Hosting in ASPNET Core What is In process and Out

214 - Q185 What is Kestrel What is the difference between Kestrel and IIS

215 - Q186 What is Routing Explain attribute routing in ASPNET Core

216 - Q187 Describe the complete Request Processing Pipeline for ASPNET Core MVC

30 - NET Core Project Files

217 - Introduction

218 - Q188 Explain default project structure in ASPNET Core application

219 - Q189 How ASPNET Core serve static files

220 - Q190 What are the main JSON files available in ASPNET Core

221 - Q191 What are the roles of AppsettingsJson and LaunchsettingJson file

222 - Q192 What is the difference between AppsettingJson & LaunchsettingJson file

223 - Q193 What are the various techniques to save configuration settings in NET Core

31 - NET Core More

224 - Introduction

225 - Q194 What is caching in ASPNET Core

226 - Q195 What is InMemory caching & Distributed Caching When to use what

227 - Q196 What is CORS Why CORS restriction is required Hot to fix CORS error

228 - Q197 How to handle errors in ASPNET Core

229 - Q198 What is Metapackage What is the name of Metapackage provided by NET Core

230 - Q199 What is the difference between NET Core and NET 5

231 - Q200 What are Razor pages in NET Core

32 - Angular

232 - Introduction

232 - Top-100-Angular-Interview-Questions-pdf.pdf

33 - Angular Framework

233 - Introduction

234 - Q1 What is Angular

235 - Q2 What are Angular advantages

236 - Q3 What is the difference between AngularJS and Angular

237 - Q4 What is NPM

238 - Q5 What is CLI tool

239 - Q6 What is Typescript What are the advantages of Typescript over JavaScript

240 - Q7 Where to store static files in Angular project

241 - Q8 What is the role of Angularjson file in Angular

242 - Q9 What is the difference between JIT and AOT in Angular

34 - Components & Modules

243 - Introduction

244 - Q10 What are Components in Angular

245 - Q11 What is a Selector and Template

246 - Q12 What is Module in Angular What is appmodulets file

247 - Q13Angular App gets Loaded&StartedDefine indexhtmlapprootselector&maints

248 - Q14 What is a Bootstrapped Module & Bootstrapped Component

35 - Data Binding

249 - Introduction

250 - Q15 What is Data Binding in Angular

251 - Q16 What is String Interpolation in Angular

252 - Q17 What is Property Binding in Angular

253 - Q18 What is Event Binding in Angular

254 - Q19 What is Two way Binding in Angular

36 - Directives

255 - Introduction

256 - Q20 What are Directives What are the type of directives

257 - Q21 What is ngIf Structural directive

258 - Q22 What is ngFor Structural directive

259 - Q23 What is ngSwitch Structural directive

260 - Q24 What is ngStyle Attribute directive

261 - Q25 What is ngClass Attribute directive

262 - Q26 Difference between Component Attribute and Structural Directives

37 - Decorator & Pipes

263 - Introduction

264 - Q27 What is Decorator

265 - Q28 What are the types of Decorator

266 - Q29 What are Pipes What are the types of Pipes & Parameterized Pipes

267 - Q30 What is Chaining Pipes

38 - Services & Dependency Injection

268 - Introduction

269 - Q31 Explain Services with Example

270 - Q32 How to create Servicein Angular

271 - Q33 How to use Dependency Injector with Services in Angular

272 - Q34 What is Hierarchical Dependency Injection

273 - Q35 What is Provider in Angular

274 - Q36 What is the role of Injectable Decorator in a Service

39 - Decorators & Lifecycle Hooks

275 - Introduction

276 - Q37 What are ParentChild Components

277 - Q38DefineInput Decorator How to transfer data from Parent to Child component

278 - Q39 What is Output Decorator and Event Emitter

279 - Q40 What are Lifecycle Hooks in Angular

280 - Q41 What is a Constructor in Angular

281 - Q42 What is ngOnChanges life cycle hook in Angular

282 - Q43 What is ngOnInit life cycle hook in Angular

283 - Q44 What is the difference between constructor and ngOnInit

40 - Routing

284 - Introduction

285 - Q45 What is Routing How to setup Routing

286 - Q46 What is router outlet

287 - Q47 What are router links

41 - Observable HttpClient RxJS

288 - Introduction

289 - Q48 What are Asynchronous operations

290 - Q49 What is the difference between Promise and Observable

291 - Q50 What is RxJS

292 - Q51 What is Observable How to implement Observable

293 - Q52 What is the role of HttpClient in Angular

294 - Q53 What are the steps for fetching the data with HttpClient & Observable

295 - Q54 How to do HTTP Error Handling in Angular

42 - TypescriptBasics

296 - Introduction

297 - Q55 What is Typescript Difference between Typescript and Javascript

298 - Q56 How to install Typescript and check version

299 - Q57 What is the difference between let and var keyword

300 - Q58 What is Type annotation

301 - Q59What are Built inPrimitive & UserDefinedNonprimitive types in Typescript

302 - Q60 What is ANY type in Typescript

303 - Q61 What is Enum type in Typescript

304 - Q62 What is the difference between void and never types in Typescript

305 - Q63 What is Type Assertion in Typescript

306 - Q64 What are Arrow Functions in Typescript

43 - Typescript OOPS

307 - Introduction

308 - Q65 What is Object Oriented Programming in Typescript

309 - Q66 What are Classes and Objects in Typescript

310 - Q67 What is Constructor

311 - Q68 What are Access Modifiers in Typescript

312 - Q69 What is Encapsulation in Typescript

313 - Q70 What is Inheritance in Typescript

314 - Q71 What is Polymorphism in Typescript

315 - Q72 What is Interface in Typescript

316 - Q73 Whats the difference between extends and implements in TypeScript

317 - Q74 Is Multiple Inheritance possible in Typescript

44 - Angular Forms

318 - Introduction

319 - Q75 What are Angular Forms What are the type of Angular Forms

320 - Q76 What is the difference between Template Driven Forms & Reactive Forms

321 - Q77 How to setup Template Driven Forms

322 - Q78 How to apply Required field validation in template driven forms

323 - Q79 What is Form Group and Form Control in Angular

324 - Q80 How to setup Reactive Forms

325 - Q81 How to do validations in reactive forms

45 - Authentication JWT Auth Guard HTTP Interceptor

326 - Introduction

327 - Q82 What is Authentication & Authorization in Angular

328 - Q83 What is JWT Token Authentication in Angular

329 - Q84 How to Mock or Fake an API for JWT Authentication

330 - Q85 How to implement the Authentication with JWT in Angular

331 - Q86 What is Auth Guard

332 - Q87 What is HTTP Interceptor

333 - Q88 How to Retry automatically if there is an error response from API

334 - Q89 What are the parts of JWT Token

335 - Q90 What is Postman

336 - Q91 Which part of the request has the token stored when sending to API

46 - Parent Child Components Communication

337 - Introduction

338 - Q92 What are the various ways to communicate between the components

339 - Q93 What is ContentProjection What is ngcontent

340 - Q94 What is Template Reference Variable in Angular

341 - Q95 What is the role of ViewChild in Angular

342 - Q96 How to access the child component from parent component with ViewChild

343 - Q97 Difference between ViewChild and ViewChildren What is QueryList

344 - Q98 What is ContentChild

345 - Q99 What is the difference between ContentChild & ContentChildren

346 - Q100Compare ngContentViewChild ViewChildren ContentChild & ContentChildren

347 - End

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