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Interview Questions and Answers for 'Sofi' - 17 question(s) found - Order By Rating

  Q1. What are the types of authentication used in Web services ?Web Service2018-07-14 11:02:27

Ans. Encrypted User Name / Password
Encrypted Password within Cookie
Encrypted Tokens
IP
Client Certificates
Oauth

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   Like         Discuss         Correct / Improve     authentication  security  web service     Asked in 12 Companies      basic        frequent


 Q2. What do you do when told to do something that you don't agree with? General2017-08-24 19:58:50

 This question was recently asked at 'Ancestry,Sofi'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 2 Companies


 Q3. How do you keep yourself aupdated with the changes in technologies ?General2017-08-23 20:33:28

 This question was recently asked at 'Sofi,Overstock.com,General Electric (GE)'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 3 Companies


 Q4. If a team member send you the code for review which you don't agree to but is just slightly off , Would you approve it or reject it ?General2017-08-23 20:33:04

 This question was recently asked at 'Sofi'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     code review     Asked in 1 Companies


 Q5. What are the restrictions on querying Cassandra Tables ?Cassandra2017-08-18 09:41:23

Ans. Cassandra Tables can only be queried using the partition key and then cluster keys, so all queries should have partition key for sure.

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   Like         Discuss         Correct / Improve     cassandra     Asked in 1 Companies


 Q6. Which validation frameworks have you worked on ?Frameworks2017-08-17 19:31:03

 This question was recently asked at 'Sofi'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     validation frameworks     Asked in 1 Companies


 Q7. Explain Hibernate Validation ?Hibernate2017-08-17 19:30:47

 This question was recently asked at 'Sofi'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     hibernate  hibernate validation     Asked in 1 Companies


 Q8. Difference between stateless and stateful rest services ?Rest2017-08-17 11:02:28

 This question was recently asked at 'Sofi'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     rest services  stateful rest service  stateless rest service     Asked in 1 Companies


 Q9. What is the difference between stream and parallel stream ?Core Java2017-08-17 11:02:04

Ans. streams are used for sequential processing of data and parallel streams are used for parallel processing of data (only if the underlying processor is multicore).

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   Like         Discuss         Correct / Improve     stream vs parallel stream  stream  parallel stream     Asked in 1 Companies


 Q10. Given a collection of Employee objects, how can we get the customers with name starting with 'A' using lambda expression.Core Java2017-08-17 11:01:46

Ans. List emp = Arrays.asList("American", "Indian", "Finn");
emp.stream().filter(em -> em.startsWith("A")).forEach(System.out.println);

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   Like         Discuss         Correct / Improve     java8  java 8  lambda     Asked in 1 Companies


 Q11. Write a SQL to remove records with a duplicate field in a Table ?Database2017-08-17 10:59:44

 This question was recently asked at 'Sofi'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     sql     Asked in 1 Companies


 Q12. How do you design microservices?Design2017-08-14 20:19:54

 This question was recently asked at 'Citigroup Bank,Sofi'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     microservices     Asked in 2 Companies


 Q13. Difference between constructor and setter injection ?Spring2017-06-23 11:49:27

Ans. 1. In Setter Injection, partial injection of dependencies can possible, means if we have 3 dependencies like int, string, long, then its not necessary to inject all values if we use setter injection. If you are not inject it will takes default values for those primitives1. In constructor injection, partial injection of dependencies cannot possible, because for calling constructor we must pass all the arguments right, if not so we may get error

2. Setter Injection will overrides the constructor injection value, provided if we write setter and constructor injection for the same property [i already told regarding this, hope you remember ] But, constructor injection cannot overrides the setter injected values

3. If we have more dependencies for example 15 to 20 are there in our bean class then, in this case setter injection is not recommended as we need to write almost 20 setters right, bean length will increase. In this case, Constructor injection is highly recommended, as we can inject all the dependencies with in 3 to 4 lines [i mean, by calling one constructor]

4. Setter injection makes bean class object as mutable [We can change ] .Constructor injection makes bean class object as immutable [We cannot change ]

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   Like         Discuss         Correct / Improve     spring  dependency injection   inversion of control     Asked in 3 Companies


  Q14. Explain OOPs

or

Explain OOPs Principles

or

Explain OOPs Concepts

or

Explain OOPs features

or

Tell me something about OOPs
Core Java2017-06-13 08:25:45

Ans. OOPs or Object Oriented Programming is a Programming model which is organized around Objects instead of processes. Instead of a process calling series of processes, this model stresses on communication between objects. Objects that all self sustained, provide security by encapsulating it's members and providing abstracted interfaces over the functions it performs. OOP's facilitate the following features

1. Inheritance for Code Reuse
2. Abstraction for modularity, maintenance and agility
3. Encapsulation for security and protection
4. Polymorphism for flexibility and interfacing

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   Like         Discuss         Correct / Improve     oops  oops features     Asked in 237 Companies      basic        frequent


 Q15. What do you look for when you do code review ?Core Java2016-12-28 13:59:38

Ans. Modularity - First sign of good code is whether it has been segregated into methods and classes appropriately. I dont mind it in excess because I believe that is forward looking strategy as applications tends to expand and eventually become hard to read.

Self Explanatory - Variables and methods should be named in a way that the code should be self explanatory even without comments. Use of Constant variables to explain use of literal.

Proper Code Reuse - If there is anything being reused , it should be moved to parent classes / methods.

Proper composition calls - Composed hierarchy should not be access in just single line. One or two levels is ok but having multiple levels make it hard to read and debug.

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   Like         Discuss         Correct / Improve     code review  clean code     Asked in 1 Companies      intermediate        frequent


Frequently asked at HCL Technologies ( Based on 3 feedback )
  Q16. Difference between Checked and Unchecked exceptions ?Core Java
Anonymous
Ans. Checked exceptions are the exceptions for which compiler throws an errors if they are not checked whereas unchecked exceptions are caught during run time only and hence can't be checked.

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   Like         Discuss         Correct / Improve     java   exceptions   checked exceptions   unchecked exceptions   exception handling   basic interview question     Asked in 37 Companies      basic        frequent

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  Q17. What is a Lambda Expression ? What's its use ?Core Java
Admin
info@buggybread.com
Ans. Its an anonymous method without any declaration.

Lambda Expression are useful to write shorthand Code and hence saves the effort of writing lengthy Code.

It promotes Developer productivity, Better Readable and Reliable code.

  Sample Code for lambda

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   Like         Discuss         Correct / Improve     java   java8   lambda expression   architecture     Asked in 57 Companies      expert        frequent

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