UKG interview questions

Initial scheduled call was set for 15 minutes and the recruiter was 5 minutes late without any email update (could've taken 30 seconds). Recruiter was coming off flustered, made a few comments about technical difficulties so they seemed unready and kept saying my name wrong. Recruiter didn't seem interested in chatting with me on a personal level and only asked three questions—which for an HR Company was not compelling. They seemed eager to get me off the call.

Basically I had a total of 6 Rounds from Starting. 1 Online Assessment 3 Technical Rounds 1 Managerial Round 1 HR Round My Online assessment has 3 questions, 2 DSA and 1 Github question. 2nd Round - Technical Interview I Internal hashMap working in deep Circular dependency Factory Method Implementation for particular code -> writeReport(String Report){ PdfGenerator pdf =new PdfGenerator() pdf.generate(report); WorkGenerator word =new WordGenerator word.generate(report); } L in Solid Principal List vs Set Sql query to print top 5 employee with highest salary How to create a database in same instance of DB Microservices components Spring security Microservice fault tolerance @Components Dependency Injection 3rd Round: Technical Interview ii Java 8 concepts(lambda expressions) along with serialization multithreading and collections concepts For Spring: spring scopes spring boot bean initialization process, annotations, restAPIs and microservices One problem from DSA If you have knowledge of GCP or any cloud that would be a great add on. Comparable vs Comparator CopyOnWriteArrayList Serialization in Java Can Static Variables Be Serialized Can we extend one FunctionaI Interface in another FI Optional in Java Sort the employee vased on salary lambda function Scope in Java Bean Scope Prototype bean scope Spring boot annotation @EnableAutoConfiguration in Spring Boot Jquery. Http Code for Service Unavailable Idempotent Methods in HTTP Statelessness in REST & Microservices if we have 2 interface and one interface is FI can other interface extends it 4th Round- Technical Interview iii When is request id created ? Security in spring Login Service in Spring Boot (Authentication & Authorization) JWT-Based Login Service Redis rate limitings Throttling RestTemplate in Spring Boot Structure of a JWT Garbage Collection (GC) in Java Metaspace in GC Changes in java 8 gc HashMap Throw vs throws Can we do catch with throws Stream of list of numbers find maximun Output type of stream if list is empty’s Fail safe and fail fast iterator Immutable Objects in Java How to create a object immutable Difference Between Error and Exception in Java Errors are Recoverable ? 5th Round : Managerial Interview Design a application like googlee backend design Gateway routing Api gateway benefits Callback mechanism How AI will help in my current projects GHA Workflows 6th Round : HR Interview Basic HR questions Motivation behind this role Why are you looking for Job change. Salary discussions. Summary: Be good with your current project Architecture, Designs Patterns in microservices, API gateway, Authentication and Authorization, Hasmaps, Spring , SQL, Streams, Lambdas