Full Stack Web Development -1 — DU B. Voc – Web Designing Previous Year Question Papers

Parts of a question must be answered together. Q1. (a) What is indexing i.n MongoDB? Discuss how indexes improve query performance. (c) Discuss the difference between hideo, showo, and 'toggleo methods in jQuery. 5 (d) What is JSON, and why is it commonly used in AJAX-based web applications? 5 (e) Explain the purpose of Angular direc.lives. Differentiate between structural and attribute directives 5 (D Describe the aggregation framework in MongoDB and explain its importance in data analysis. 5 Q2. (a) Explain any three types of selectors used in jQuery with appropriate examples. (b) How can method chaining be implemented in jQuery? Write a script demonstrating chained actions on an HTML element. Q3. (a) Discuss the purpose of @Input and @Output decorators in Angular and explain their usage with examples. (b) What ate Angular components? Explain how to generate a component using Angular CLI with a suitable example. Q4. (a) Differentiate between AngularJS and Angular 2t on the basis of architecture, performance, and features. (b) Define lifecycle hooks in Angular. Explaini the working of ngOninit and ngOnDestroy 8 using examples. (a) Describe how the find method is. used in MongoDB to retrieve documents from a collection. Give an example. (b) Explain embedded documents in MongoDB. Compare embedded and referenced data models, highlighting their merits and demerits. Q6. (a) What is modularization in MongoDB applications? Explain how routes and controllers can be structured in an organized manner. (b) Discuss MongoDB's scalability and performance objectives. Explain the techniques MongoDB uses to accomplish them. (a) Explain the working of the animated function in Query for implementing custom 7 animations with an example. (b) Define AJAX callbacks in jQuery. How do they assist in handling asynchronous requests? Explain with an example.