PayPay India | SDE-2 | Reject | Interview Experience | May 2025
Anonymous User
1388

Exp : 3 Years

Round 1- Spring Boot, DBMS, Java & DSA
Duration : 1 Hour

What are the annotations in Spring Boot?
What is @Componenent Annotation?
What is @Transcational Annotation?
Internal Working of @Transcational?
Differcne bw @Component & @Service?
IOC Container?
Dependency Injection?
Error Codes.
401 vs 403.
PUT vs Patch.
Isolation Levels in Transcations.
Saga Pattern.
ACID Properties.
What is Kafka?
What is DLQ?
What if Kafka Broker Goes Down?
Sharding
Partitioning
SQL vs NOSQL
When to use which DB?
No questions on Networking & OS. Mostly revolved around DBMS, Spring Boot java, Kafka.

DSA -
https://leetcode.com/problems/3sum/description/

Verdict : Rejected.

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