Infosys Technical Lead Interview Questions, Process, and Tips

The latest tech trends include AI, machine learning, cloud computing, cybersecurity, and IoT.

• AI and machine learning are being used in various industries for automation and data analysis.

• Cloud computing is becoming more popular for scalability and cost-efficiency.

• Cybersecurity is a growing concern with the increase in cyber attacks.

• IoT is connecting devices and enabling smart solutions in homes and businesses.

Hashtable is synchronized and thread-safe, while Hashmap is not synchronized.

• Hashtable is synchronized and thread-safe, while Hashmap is not synchronized.

• Hashtable does not allow null keys or values, while Hashmap allows one null key and multiple null values.

• Hashtable is slower than Hashmap due to synchronization.

• Hashtable is legacy class, while Hashmap is part of Java collections framework.

Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.

• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to process collections of objects in a functional style.

• Default methods allow interfaces to have methods with...read more

Keep in MVC stands for Model-View-Controller, which is a design pattern used in software development to separate the concerns of an application.

• Keep refers to the model component in MVC

• It represents the data and the business logic of the application

• Keep interacts with the database and processes the data before sending it to the view

• Example: In a blog application, the Keep would handle the data related to blog posts suc

Design patterns are reusable solutions to common problems in software design.

• Design patterns provide a way to create flexible and maintainable software systems.

• They help in organizing code, making it more readable and easier to maintain.

• Examples of design patterns include Singleton, Factory, Observer, and Strategy patterns.