frontend for java full stack development coursera week 3 answers
Angular Components - Practice Quiz
1. What is the purpose of Angular decorators in Angular framework?
- To define the styles for Angular components
- To encapsulate the logic and data of Angular components
- To configure the behavior and metadata of Angular components
- To create reusable UI components in Angular applications
2. Which of the following is not a lifecycle hook in Angular?
- ngOnInit
- ngOnChanges
- ngOnDestroy
- ngAfterViewUpdate
3. Which of the following is NOT a type of decorator in Angular?
- @Component
- @Directive
- @Module
- @Service
4. Which of the following is NOT a comparison operator in JavaScript?
- ==
- ===
- !=
- <> (Correct Answer)
Angular Databinding - Practice Quiz
5. What is Angular Data Binding?
- A process of connecting Angular application with an external API.
- A way to define data types in Angular application.
- A technique to share data between components in an Angular application.
- A mechanism to automatically synchronize data between the view and the model in an Angular application.
6. What is Angular Two-way Data Binding?
- A technique to bind data from the model to the view only.
- A technique to bind data from the view to the model only.
- A technique to automatically synchronize data between the view and the model in both directions.
- A technique to manually synchronize data between the view and the model in both directions.
7. What is Angular Event Binding?
- A technique to automatically synchronize data between the view and the model.
- A technique to bind data from the model to the view only.
- A technique to bind data from the view to the model only.
- A technique to handle events in the view and trigger actions in the component.
Angular Directives - Practice Quiz
8. What are Angular Directives?
- A way to style elements in Angular.
- Instructions to modify the DOM or behavior of HTML elements in Angular.
- A way to define Angular components.
- A way to define Angular modules.
9. What is Angular ngIf Directive?
- A directive used to apply styles to elements in Angular.
- A directive used to modify the DOM structure in Angular.
- A structural directive used to conditionally render or remove elements from the DOM in Angular.
- A directive used to define custom elements in Angular.
10. What is Angular ngFor Directive?
- A directive used to apply styles to elements in Angular.
- A directive used to repeat elements in the DOM based on an array in Angular.
- A directive used to modify the DOM structure in Angular.
- A directive used to define custom elements in Angular.
11. What is Angular ngStyle Directive?
- A directive used to apply styles to elements in Angular.
- A directive used to modify the DOM structure in Angular.
- A directive used to repeat elements in the DOM based on an array in Angular.
- A directive used to define custom elements in Angular.
Angular - Graded Quiz
12. What is an Angular pipe?
- A type of plumbing used to transport data between Angular components.
- A feature of Angular used to transform data before displaying it in the template.
- A tool used to debug Angular applications.
- A mechanism for passing data from a parent component to a child component.
13. Which of the following is NOT a valid Angular form control state?
- untouched
- dirty
- valid
- selected
14. What is an Angular template-driven form?
- A form that is generated automatically based on a data model.
- A form that is defined in the component template using Angular directives and binding.
- A form that is defined in the component class using TypeScript code.
- A form that is submitted using the Angular HttpClient module.
15. What is the purpose of the "ngModel" directive in Angular forms?
- To define the structure of the form data model.
- To define the validation rules for a form control.
- To bind a form control to a property on the component class.
- To submit the form data to the server using the Angular HttpClient module.
16. Which of the following is NOT a valid built-in validator for Angular forms?
- required
- pattern
- alphanumeric
17. What is the difference between template-driven forms and reactive forms in Angular?
- Template-driven forms are built using a template syntax, while reactive forms are built using reactive programming techniques.
- Template-driven forms are used for simple forms with few fields, while reactive forms are used for more complex forms with many fields.
- Template-driven forms are mainly driven by the component’s template, while reactive forms are mainly driven by the component’s TypeScript code.
- Template-driven forms do not support form validation, while reactive forms provide robust form validation features.
18. What is a pipe in Angular?
- A data structure used to hold values that can be accessed from anywhere in the application.
- A component that is used to render a specific portion of the user interface.
- A way to transform data in the template before rendering it.
- A built-in Angular module used for adding custom CSS styles to the application.
19. Which of the following is NOT a built-in Angular validator for forms?
- required
- pattern
- unique
20. Which of the following is NOT a valid Angular form control status?
- pristine
- dirty
- touched
- inactive
21. Which of the following is NOT a built-in Angular pipe?
- uppercase
- date
- currency
- capitalize
22. What is the purpose of the "ngSubmit" directive in Angular forms?
- To disable the form submission.
- To specify the HTTP method to be used for the form submission.
- To define the form fields and their validation rules.
- To bind a method to the form submission event.