TCS IT Analyst C2 Interview Questions, Process, and Tips

Directives in Angular are markers on a DOM element that tell Angular to attach a specified behavior to that DOM element or transform it.

• Directives are used to create reusable components or add behavior to existing elements.

• There are three types of directives in Angular: Component, Structural, and Attribute directives.

• Examples of built-in directives in Angular include ngIf, ngFor, and ngStyle.

Pipes are a form of inter-process communication used in Unix-like operating systems to send data between processes.

• Pipes allow communication between processes by connecting the standard output of one process to the standard input of another process

• There are two types of pipes: unnamed pipes and named pipes (also known as FIFOs)

• Unnamed pipes are created using the pipe system call and exist only as long as the processes ...read more

DI system in Angular is a design pattern where dependencies are injected into a class rather than the class creating them.

• DI helps in creating loosely coupled components in Angular applications.

• It allows for easier testing and maintenance of code.

• Dependencies are provided to a component through its constructor.

• Angular's DI system is hierarchical, meaning dependencies can be injected at different levels of the applicati...read more

An HTTP Interceptor is a middleware component that intercepts incoming and outgoing HTTP requests in an application.

• HTTP Interceptors are commonly used in Angular applications to modify or log HTTP requests/responses.

• They can be used to add headers, handle errors, or perform authentication.

• An example of using an HTTP Interceptor is adding an authorization token to every outgoing request for secure API calls.

localStorage and sessionStorage are both web storage options in JavaScript, but they have different scopes and lifetimes.

• localStorage stores data with no expiration date, while sessionStorage stores data for one session only

• localStorage data persists even after the browser is closed and reopened, while sessionStorage data is lost when the browser is closed

• Both can only store strings, but can be converted to other data

Common design patterns in Angular include Singleton, Observer, Factory, and Dependency Injection.

• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

• Factory pattern is used to create objects without specifying t...read more

Route guards in Angular are used to control access to certain routes in an application.

• Route guards are used to protect routes in Angular applications by controlling whether a route can be activated or not.

• There are three types of route guards in Angular: CanActivate, CanActivateChild, and CanDeactivate.

• CanActivate guard is used to determine if a route can be activated.

• CanActivateChild guard is used to determine if a c...read more

Methods for communication between components include synchronous and asynchronous communication, message queues, APIs, and web services.

• Synchronous communication: Components communicate in real-time, waiting for a response before proceeding.

• Asynchronous communication: Components communicate without waiting for a response, allowing for parallel processing.

• Message queues: Components send messages to a queue for other com...read more

Batch class syntax in Salesforce for processing records in bulk

• Batch class must implement Database.Batchable interface

• Define start, execute, and finish methods

• Use Database.executeBatch method to execute the batch class

• Example: public class MyBatchClass implements Database.Batchable { //code here }

A trigger related to account contact relationship

• Create a trigger on the Account object

• Use the 'after insert' and 'after update' events to capture changes

• Query the related Contact records based on the Account Id

• Perform necessary actions based on the relationship between Account and Contact

Agile ceremonies are regular meetings or events in Agile methodology to facilitate communication, collaboration, and decision-making within the team.

• Sprint Planning: Meeting at the start of a sprint to plan the work to be done.

• Daily Stand-up: Short daily meeting for team members to discuss progress and plan for the day.

• Sprint Review: Meeting at the end of a sprint to review and demonstrate the completed work.

• Sprint Ret...read more

TCS is a global leader in IT services with a strong reputation for innovation and career growth opportunities.

• TCS has a strong reputation for innovation and cutting-edge technology solutions.

• TCS offers excellent career growth opportunities and training programs.

• TCS has a global presence with diverse projects and clients.

• TCS values work-life balance and employee well-being.

• TCS has a culture of diversity and inclusion.

Seeking new challenges and growth opportunities in a different environment.

• Looking for new challenges and opportunities for growth

• Interested in exploring different technologies and industries

• Seeking a better work-life balance or company culture

• Want to expand my skill set and knowledge in a different setting

I expect a challenging role with opportunities for growth and learning.

• Opportunities for professional development and training

• Challenging projects that allow me to utilize my skills

• Supportive team environment

• Clear expectations and goals set by management

I have faced exceptions like ElementNotVisibleException, NoSuchElementException, TimeoutException, StaleElementReferenceException, etc.

• ElementNotVisibleException occurs when an element is present in the DOM but not visible on the page

• NoSuchElementException is thrown when an element could not be found in the DOM

• TimeoutException occurs when a command does not complete in the specified time

• StaleElementReferenceException i...read more

Different types of waits in IT include CPU wait, I/O wait, and lock wait.

• CPU wait occurs when a process is waiting for the CPU to become available.

• I/O wait happens when a process is waiting for input/output operations to complete.

• Lock wait occurs when a process is waiting for a lock to be released by another process.

Get and navigate difference

• Get refers to retrieving data or information from a source

• Navigate refers to moving through a system or interface to access different sections or features

• Get is about obtaining specific data, while navigate is about moving around within a system