Interview Questions and Answers for 'Technologie' | Search Interview Question

Interview Questions and Answers for 'Technologie' - 305 question(s) found - Order By Rating

Q1. Can you explain integration between Spring and Hibernate ?

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Q2. differences between drop , delete and truncate

Database

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Q3. How to deploy spring boot application without restart in prod env

Spring Boot

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Q4. Hash map using/without using Java 8

Core Java

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Q5. Rest API crud operation using spring boot

Spring Boot

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Q6. What is difference between Echo and Print ?

Ans. echo and print statements both are similar there is a slight difference between those both are output statements echo has no return value while print has value 1 echo takes multiple parameters but print takes one argument

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Q7. How do you use cut command in unix ?

Unix

Ans. cut command is used to extract the given number of characters and columns from a file

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Q8. What is stress testing ?

Testing

Ans. Stress testing is a software testing activity that determines the robustness of software by testing beyond the limits of normal operation.

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Q9. What if we use all access specifiers ? Is it encapsulation ?

Core Java

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Q10. What are the best strategies to improve code readability ?

General

Ans. https://dzone.com/articles/10-tips-how-to-improve-the-readability-of-your-sof

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Q11. JWT internal working

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Q12. Linked List related questions.

Data Structure

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Q13. What is runtime Polymorphism ?

Design

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Q14. Difference between Query param and path param ?

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Q15. Write SQL query to join 2 tables ?

SQL

Ans. Select * from table1 join Select * from table2

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Q16. Difference between interface and inheritance

Core Java

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Q17. What are the 22 possible values of x where x== -x (true) ?

Core Java

Ans. byte x = 0;
short x = 0;
char x = 0;
int x = 0;
int x = Integer.MIN_VALUE;
float x = 0.0f;
float x = -0.0f;
long x = 0;
long x = Long.MIN_VALUE;
double x = 0.0;
double x = -0.0;
Byte x = 0;
Short x = 0;
Character x = 0;
Integer x = 0;
Integer x = Integer.MIN_VALUE;
Float x = 0.0f;
Float x = -0.0f;
Long x = 0L;
Long x = Long.MIN_VALUE;
Double x = 0.0;
Double x = -0.0;

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Q18. What is cluster ?

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Q19. Can a constructor be declared static ? Why ?

Core Java

Ans. No.

When we declare a method static, it means that "this belongs to class as whole and not particular instance". The whole purpose of constructor is to initialize a object and hence there is no sense having static constructor.

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Q20. Can constructors be final ?

Core Java

Ans. No. They are never inherited and therefore are not subject to hiding or overriding.

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Q21. Describe AWS VPC and subnets.

Amazon Web Services (AWS)

Ans. VPC stands for Virtual Private Cloud. You can define a VPC and subnets for a region in AWS and that can be used to access shared resources on the cloud. For eg: API gateway to access any file on S3.

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Q22. What are the different Route53 routing policies ?

Amazon Web Services (AWS)

Ans. Simple
Weighted
Latency
Failover
GeoLocation
Multivalue

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Q23. Difference between List and ArrayList ?

Core Java

Ans. List is an interface whereas ArrayList is an implementation of List.

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Q24. What is the name of DNS service provided by AWS ?

Amazon Web Services (AWS)

Ans. Route 53

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Q25. what is the difference between RC and webdriver

WebDriver

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Q26. what are the different status of a defect in Jira ?

Jira

Ans. Open, In Progress, Reopened, Closed, Resolved

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Q27. what is the testcase technique

Testing

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Q28. Explain different inheritance mapping strategies with JPA / Hibernate.

Hibernate

Ans. table per hierarchy
table per concrete class
table per sub class

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Q29. What are the different ways to create objects in Java ?

Core Java

Ans. 1. Using new operator
3. Using Class.forName or Reflection
4. Using clone
5. Using Deserialization

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Q30. Can we create object in static block ?

Core Java

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