EPAM Systems Interview Questions, Process, and Tips

Use sliding window approach to find longest substring with no repeating characters.

• Use a set to keep track of characters in the current substring

• Use two pointers to create a sliding window

• Update the pointers and set as you iterate through the string

Dependency injection is a design pattern in which components are given their dependencies rather than creating them internally.

• Allows for easier testing by providing mock dependencies

• Promotes loose coupling between components

• Improves code reusability and maintainability

• Examples: Constructor injection, Setter injection, Interface injection

Explanation of arrayList, link List, Exception vs RunTime exception, Executors, copy/write array, and Java8 coding question using streams.

• ArrayList and LinkedList are both implementations of the List interface in Java. ArrayList uses a dynamic array to store elements, while LinkedList uses a doubly linked list.

• Exceptions are checked at compile time, while RuntimeExceptions are unchecked and occur at runtime. Custom cla...read more

AWS provides various services that can be used to build a scalable and reliable architecture for Kubernetes.

• AWS Elastic Kubernetes Service (EKS) is a managed Kubernetes service that simplifies the deployment, management, and scaling of Kubernetes clusters.

• AWS CloudFormation can be used to automate the provisioning of infrastructure resources for Kubernetes clusters.

• AWS Identity and Access Management (IAM) can be used t...read more