Cognizant Team Member/Team Leader Interview Questions and Answers

Dynamic form is a form that can be modified at runtime. FormArray is an array of form controls.

• Dynamic form allows adding or removing form fields based on user input or other conditions.

• FormArray is used to manage an array of form controls.

• Example: A form where users can add multiple phone numbers or email addresses.

• Example: A form where users can add or remove items from a shopping cart.

To address client complaint of slow application post-deployment, I would follow a systematic approach to identify and resolve the issue while keeping the client informed.

• First, I would gather more information from the client about the specific areas of the application that are slow and the frequency of the issue.

• Next, I would review the application logs to identify any errors or performance issues.

• I would also check th...read more

SPA stands for Single Page Application. Lazy loading is a technique to load modules on demand.

• SPA is a web application that loads a single HTML page and dynamically updates the content as the user interacts with it.

• To load another module in SPA, we can use lazy loading technique which loads the module only when it is required.

• Lazy loading helps in reducing the initial load time of the application and improves the perfo...read more

Observable is a pattern for handling asynchronous data streams. Promises are a way to handle asynchronous operations.

• Observables allow for subscribing to a stream of data and reacting to each event as it comes in.

• Promises represent a value that may not be available yet, but will be resolved at some point in the future.

• async/await is a way to write asynchronous code that looks synchronous, by pausing execution until a p...read more

Yes, script tags can be used in Angular

• Script tags can be used to load external scripts in Angular

• Angular also provides a way to load scripts dynamically using the ScriptService

• However, it is recommended to use Angular's built-in mechanisms for loading scripts

No, it will not get rendered on UI without a template.

• A component needs a template to be rendered on UI.

• Without a template, the component will not be visible on the UI.

• The template defines the structure and content of the component.

• If there is no template, the component will not have any visual representation.