35 + Interview Questions in Angular 2 Building Blocks in Angular Page 1 InterviewSolution

1.	What is it called when you "compile the application in the browser before launching the app"?
Answer» What is it CALLED when you "compile the application in the browser before launching the APP"? CHOOSE the CORRECT option from below list (1)Ahead-of-Time (AOT) Compilation (2)PreLaunch Compilation (3)Just-In-Time (JIT) Compilation (4)Static Compilation Answer:-(3)Just-In-Time (JIT) Compilation

Discussion

2.	Which of the following helps you define Metadata for a class?
Answer» Which of the following helps you define METADATA for a class? Choose the correct OPTION from below list (1)Using Templates (2)Using COMPONENTS (3)Using Services (4)Using Decorator Answer:-(4)Using Decorator

Discussion

3.	The following are true about Services, except ________
Answer» The following are true about Services, except ________ Choose the correct OPTION from below LIST (1)Services are designed to do a lot of things at a TIME (2)Components MUST be as lean as possible and all non-trivial tasks should be delegated to Services (3)Services are mostly injected to components using DI (4)SERVICE is typically a Class with functions Answer:-(1)Services are designed to do a lot of things at a time

Discussion

4.	The following are all metadata, except ________
Answer» The following are all METADATA, except ________ Choose the correct option from below list (1)pipes (2)template (3)Component (4)Injectable() ANSWER:-(2)template

Discussion

5.	The following are all Directives, except __________
Answer» The FOLLOWING are all DIRECTIVES, EXCEPT __________ Choose the CORRECT option from below list (1)Attribute (2)Structural (3)Component (4)MODULE Answer:-(4)Module

Discussion

6.	In order to bind data from view to component class, you can use _____.
Answer» In ORDER to bind data from view to component class, you can use _____. Choose the CORRECT OPTION from below list (1)Property binding (2)Interpolation binding (3)Event binding Answer:-(3)Event binding

Discussion

7.	The following are all Angular metadata Decorators, except ________
Answer» The following are all Angular metadata DECORATORS, except ________ CHOOSE the correct option from below list (1)Bindable (2)INJECTABLE() (3)INJECT (4)Component Answer:-(1)Bindable

Discussion

8.	Which of the following is an Attribute Directive?
Answer» Which of the following is an Attribute Directive? Choose the CORRECT option from below LIST (1)NgFor (2)NGMODEL (3)NgIf (4)NgHide Answer:-(2)NgModel

Discussion

9.	Which directive lets you change the rendered view by adding and removing elements from the Document Object Model?
Answer» Which directive lets you CHANGE the RENDERED view by ADDING and removing elements from the Document Object Model? Choose the correct OPTION from below list (1)Attribute (2)Structural (3)Component Answer:-(2)Structural

Discussion

10.	Components can be used with ____________.
Answer» Components can be used with ____________. Choose the CORRECT option from below list (1)None of the OPTIONS (2)Both Attributes and TAGS (3)Attributes only (4)Tags only Answer:-(2)Both Attributes and Tags

Discussion

11.	Which of the following are valid metadata properties?
Answer» Which of the following are valid metadata properties? Choose the correct option from below list (1)templateUrl (2)All the options (3)PROVIDERS (4)pipes Answer:-(2)All the options

Discussion

12.	______ are mandatory parameter in components.
Answer» ______ are mandatory PARAMETER in components. Choose the correct option from below list (1)Templates (2)Selectors (3)Providers Answer:-(1)Templates

Discussion

13.	An app can have one or no modules present.
Answer» An APP can have one or no modules present. Choose the CORRECT option from below list (1)True (2)False Answer:-(2)False

Discussion

14.	The Component decorator defines how an application should be compiled and launched.
Answer» The COMPONENT decorator defines how an application should be COMPILED and launched. Choose the correct option from below LIST (1)False (2)True Answer:-(1)False

Discussion

15.	NgFor and NgIf are examples of _________
Answer» NgFor and NgIf are examples of _________ Choose the CORRECT option from below list (1)ATTRIBUTE (2)Component (3)Structural Answer:-(3)Structural

Discussion

16.	Which directive lets you modify the behavior of another Directive?
Answer» Which directive LETS you modify the behavior of another Directive? Choose the CORRECT OPTION from below LIST (1)Component (2)ATTRIBUTE (3)Structural Answer:-(2)Attribute

Discussion

17.	What are the types of Angular View Classes that can be associated to a Module?
Answer» What are the TYPES of Angular View CLASSES that can be associated to a Module? Choose the correct option from below list (1)DECORATORS, SERVICES and Components (2)Services, Decorators and Templates (3)Components, Directives and Pipes (4)Directives, Templates and Pipes Answer:-(3)Components, Directives and Pipes

Discussion

18.	Templates can also be added using URLs of the file containing code.
Answer» TEMPLATES can also be added using URLs of the FILE containing code. Choose the correct option from below LIST (1)False (2)TRUE Answer:-(2)True

Discussion

19.	Which scripting language can be used to write Angular 2 apps?
Answer» Which scripting LANGUAGE can be USED to WRITE Angular 2 apps? CHOOSE the correct option from below list (1)Only Node.js (2)Only JavaScript (3)Only TypeScript (4)TypeScript or JavaScript Answer:-(4)TypeScript or JavaScript

Discussion

20.	Interpolation uses ________.
Answer» Interpolation USES ________. CHOOSE the correct OPTION from below list (1)[] (2){{}} (3)[()] Answer:-(2){{}}

Discussion

21.	______ element property is used to tell angular to insert the instance of component in the HTML file.
Answer» ______ element property is used to tell ANGULAR to INSERT the INSTANCE of COMPONENT in the HTML file. Choose the correct option from below list (1)Templates (2)Providers (3)Selectors Answer:-(3)Selectors

Discussion

22.	Angular 2 uses ______ Dependency Injection.
Answer» ANGULAR 2 uses ______ Dependency Injection. Choose the correct option from below LIST (1)Component (2)HORIZONTAL (3)Hierarchical (4)Service Answer:-(3)Hierarchical

Discussion

23.	Which of the following is one of the blocks of Angular 2 architecture?
Answer» Which of the following is one of the BLOCKS of Angular 2 architecture? CHOOSE the correct option from below LIST (1)Router (2)None of the options (3)Both the options (4)Pipes Answer:-(2)None of the options

Discussion

24.	What happens when the following code is encountered by Angular?
Answer» What happens when the following code is ENCOUNTERED by Angular? < tr> < td id="tableData4" colspan={{2 * 2}}> < /td> < /tr>` Choose the correct option from below list (1)None of the options (2)The < td> colspan is set to empty VALUE (3)A template parse error is thrown since colspan is a native HTML ATTRIBUTE (4)The < td > colspan is set to '4' since Angular EVALUATES the interpolated expression Answer:-(3)A template parse error is thrown since colspan is a native HTML attribute

Discussion

25.	There can be only one component per DOM element.
Answer» There can be only ONE component PER DOM element. Choose the correct OPTION from below list (1)TRUE (2)False Answer:-(1)True

Discussion

26.	How will you make sure that a single instance of any Service is available throughout the app?
Answer» How will you make sure that a single instance of any Service is available THROUGHOUT the app? Choose the CORRECT option from below list (1)Register the service using 'imports' and ADD it to the Root Component (2)Register the service using 'providers' and add it to the Root Module------------- (3)Declare the service in the Root Component (4)None of the options Answer:-(2)Register the service using 'providers' and add it to the Root Module

Discussion

27.	Root module class by convention is named as _______.
Answer» ROOT module class by CONVENTION is named as _______. Choose the correct option from below LIST (1)MainModule (2)RootModule (3)AppModule Answer:-(3)AppModule

Discussion

28.	Which of the following is an advantage of lazy loading?
Answer» Which of the following is an advantage of lazy LOADING? Choose the correct option from below list (1)Loads the features only on DEMAND (2)All of the options (3)Speeds up the application load time (4)Extends lazy LOADED features without EXPANDING initial load size Answer:-(2)All of the options

Discussion

29.	Property binding is defined using _________.
Answer» PROPERTY binding is DEFINED using _________. CHOOSE the correct OPTION from below list (1){{}} (2)[] (3)[()] Answer:-(2)[]

Discussion

30.	There can be only one service in a component.
Answer» There can be only one service in a component. Choose the correct option from below list (1)TRUE (2)False Answer:-(2)False

Discussion

31.	Angular 2 is written on top of Angular 1.5.x.
Answer» Angular 2 is written on top of Angular 1.5.x. Choose the CORRECT option from below list (1)FALSE (2)True Answer:-(1)False

Discussion

32.	Services are included in components using ______.
Answer» SERVICES are included in COMPONENTS USING ______. Choose the correct option from below list (1)Directives (2)Template (3)Provider Answer:-(3)Provider

Discussion

33.	Services are identified using the decorator ______.
Answer» Services are identified USING the decorator ______. CHOOSE the correct OPTION from below list (1)ngServices (2)services (3)Injectable Answer:-(3)Injectable

Discussion

34.	How many lifecycle methods does Angular offer apart from a Component's constructor()?
Answer» How MANY lifecycle methods does Angular offer apart from a COMPONENT's constructor()? Choose the correct OPTION from below list (1)7 (2)8 (3)4 (4)6 Answer:-(2)8

Discussion

35.	A _______ acts as a mediator between application/business logic and the application presentation layer.
Answer» A _______ acts as a mediator between APPLICATION BUSINESS logic and the application presentation layer. Choose the correct option from below LIST (1)Module (2)Component (3)TEMPLATE (4)Service Answer:-(2)Component

Discussion

Explore topic-wise InterviewSolutions in .

What is it called when you "compile the application in the browser before launching the app"?

Which of the following helps you define Metadata for a class?

The following are true about Services, except ________

The following are all metadata, except ________

The following are all Directives, except __________

In order to bind data from view to component class, you can use _____.

The following are all Angular metadata Decorators, except ________

Which of the following is an Attribute Directive?

Which directive lets you change the rendered view by adding and removing elements from the Document Object Model?

Components can be used with ____________.

Which of the following are valid metadata properties?

______ are mandatory parameter in components.

An app can have one or no modules present.

The Component decorator defines how an application should be compiled and launched.

NgFor and NgIf are examples of _________

Which directive lets you modify the behavior of another Directive?

What are the types of Angular View Classes that can be associated to a Module?

Templates can also be added using URLs of the file containing code.

Which scripting language can be used to write Angular 2 apps?

Interpolation uses ________.

______ element property is used to tell angular to insert the instance of component in the HTML file.

Angular 2 uses ______ Dependency Injection.

Which of the following is one of the blocks of Angular 2 architecture?

What happens when the following code is encountered by Angular?

There can be only one component per DOM element.

How will you make sure that a single instance of any Service is available throughout the app?

Root module class by convention is named as _______.

Which of the following is an advantage of lazy loading?

Property binding is defined using _________.

There can be only one service in a component.

Angular 2 is written on top of Angular 1.5.x.

Services are included in components using ______.

Services are identified using the decorator ______.

How many lifecycle methods does Angular offer apart from a Component's constructor()?

A _______ acts as a mediator between application/business logic and the application presentation layer.