EPAM Systems Sr Developer interview questions

Pollfill of bind, prototype, this, js engine, microtask queue, flatten array, implement singleton pattern,

1. Shallow Copy Vs Deep Copy & Implementation 2. Co-varient Return Types 3. Collection - For maintaining order in map -> LinkedHashMap - Concurrent HashMap - Problem where we need sort for custom object --> Override Equals And HashCode 4. try-with-resources with implementation 5. SOLID principles with example # Java 8 - Parallel Stream & its pros and cons # Spring Boot - Profiling - Saga Pattern for distributed transactions -- cache concept # Microservices - On Gateways, Discovery server ---> We use Eureka - Hsytrix etc.. --> Fault tolerance # Program - Find Cube of number then filter total > 100 & then find its average