this video contains the interview questions asked for senior software Engineer at UST global.
Questions :
Questions:
L1 round:
OOPS
Abstract class vs Interface
Can abstract class have constructor if yes how to call it
What Is static
When noBeanFoundException occurs
When to use arrayList compared to array and linkedList
What is synchronized ? Object level and Class level locks ?
What do you mean by reentrance in a lock
What is volatile and transient
Can we override clone without implementing Cloneable interface
Design patterns - singleton and factory
How to create a threadsafe lazily initialized singleton class
How to break singleton pattern
What is cyclic barrier and countdown latch
Program to filter employees and group them based on gender with stream api
Program to find duplicate words in a string with their count
Spring boot :
why use spring boot over spring framework
how to configure database
how to exclude a class from getting autoconfigured
what is @Qualifier and when to use it. How it is different from @Primary
difference between @Component vs @Bean
Are singleton beans thread safe ?
How to do @OneToMany - @ManyToOne mapping, explain with example
difference between beanFactory and applicationContext
what is spring interceptor, give example
How does @Transactional works along with propagation and isolation levels
How to use spring security module ? What all configurations are required for basic username password auth ?
How to handle global exceptions
difference between @Controller and @RestController
what all different Bean scopes are there ? Which is the default bean scope ?
types of injections ? Diff between constructor and setter injections
What is IOC and how it's different from dependency injection
how to unit test a rest controller
microservice modules used in project ? And how to configure them ? config server / eureka server / ribbon client / hysterix / zuul api gateway
ReactJs :
what are hooks ? useEffect, useState, useCallback, useMemo, useSelect, useDispatch, useReducer
how to increase react app performance
why use redux and why use it over context api ?
e2e redux flow - from component to action to dispatch to store
what are uncontrolled components
what are synthetic events
what do you mean by lifting the state up
what are HOCs - give example
L2 round:
project architecture
deployment process to AWS EKS
Common docker commands and build spec yaml content configured for Code Build AWS service
java 8 features - why default methods added in interface
microservice modules used in project
Program to create custom functional interface and use it in main method with lambda expression
Program given a string, find words starting with "A" and collect them in a array using streams
Regular managerial questions
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20 июл 2024
