Synechron Team Lead Interview Questions and Answers

OOP concepts in frameworks enhance code reusability, maintainability, and scalability through encapsulation, inheritance, and polymorphism.

• Encapsulation: Bundling data and methods, e.g., a class representing a bank account with methods to deposit and withdraw.

• Inheritance: Creating a new class from an existing class, e.g., a 'SavingsAccount' class inheriting from 'BankAccount'.

• Polymorphism: Allowing methods to do differ...read more

Smoke testing is a preliminary test to check the basic functionality of a software build.

• Smoke testing verifies that the most crucial functions of a software application work correctly.

• It is often referred to as 'build verification testing'.

• Example: After a new build, testers check if the application launches and the login feature works.

• Smoke tests are usually automated to save time and ensure consistency.

• They help ide...read more

Agile is an iterative project management methodology focused on collaboration, flexibility, and customer satisfaction.

• Iterative Development: Agile promotes breaking projects into smaller, manageable units called iterations or sprints. For example, a software team may work in two-week sprints to deliver incremental features.

• Collaboration: Agile emphasizes teamwork and communication among all stakeholders, including deve...read more

Our project architecture is a microservices-based system utilizing REST APIs, Docker, and cloud services for scalability and resilience.

• Microservices: Each service handles a specific business capability, e.g., user management, order processing.

• REST APIs: Services communicate over HTTP, allowing for easy integration and scalability.

• Docker: We use containers to ensure consistent environments across development, testing, ...read more

Class lock applies to the class level, while object lock applies to individual instances of a class.

• Class lock (static lock) is shared among all instances of a class.

• Object lock (instance lock) is unique to each instance of a class.

• Example of class lock: synchronized static method in Java.

• Example of object lock: synchronized instance method in Java.

• Class locks are used for controlling access to static resources.

• Object ...read more

Concurrency in HashMap can be achieved using synchronization techniques or concurrent collections.

• Use synchronized blocks to control access: `synchronized(map) { map.put(key, value); }`.

• Utilize `ConcurrentHashMap` for better performance with concurrent access.

• Implement read-write locks for more granular control over read and write operations.

• Consider using `Collections.synchronizedMap(new HashMap<>())` for a sync...read more

Reactive forms in Angular provide a model-driven approach to handling form inputs and validations.

• Import ReactiveFormsModule in your Angular module.

• Create a FormGroup to manage form controls: `this.form = new FormGroup({ name: new FormControl('') });`

• Use FormBuilder for easier form control creation: `this.form = this.fb.group({ name: [''] });`

• Bind the form to the template using `formGroup` directive: `<form [formGro...read more