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Angular - Quiz(MCQ)

Angular is an application-design framework and development platform for creating efficient and sophisticated single-page apps.

These Angular docs help you learn and use the Angular framework and development platform, from your first application to optimizing complex single-page applications for enterprises. Tutorials and guides include downloadable examples to help you start your projects.

1 .
What is the purpose of FormBuilder?
A)
Generates the form elements from data properties in the component class
B)
Creates the form data structure from a specified configuration when building reactive forms
C)
Creates the form data structure from a specified configuration when building template-driven forms
D)
Creates the form data structure from a specified configuration when building template-driven forms

Correct Answer : Option (B) :   Creates the form data structure from a specified configuration when building reactive forms

2 .
Which Angular CLI flag will not generate unit tests for a component?
A)
--spec false
B)
--testing false
C)
--unit-test false
D)
--test false

Correct Answer : Option (A) :   --spec false

3 .
Which of the following will map the name of an input parameter "userData" to a field named "users"?
A)
@Input('userData') users
B)
@Input() userData: users
C)
@Input() users: userData
D)
@Input('users') userData

Correct Answer : Option (A) :   @Input('userData') users

4 .
When using FormBuilder, how are validation rules specified?
A)
As part of the FormControl configuration: heroName: ['', Validators.required]
B)
As part of the FormControl configuration: heroName: [Validators.required, '']
C)
As standard HTML validation attributes added to the input element
D)
As part of the input element binding: formControl="[heroName, Validators.required]"

Correct Answer : Option (A) :   As part of the FormControl configuration: heroName: ['', Validators.required]