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Interview Questions and Answers for 'Bloomberg' - 14 question(s) found - Order By Newest

 Q1. Why Char array is preferred over String for storing password?Core Java
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Ans. String is immutable in java and stored in String pool. Once it's created it stays in the pool until unless garbage collected, so even though we are done with password it's available in memory for longer duration and there is no way to avoid it. It's a security risk because anyone having access to memory dump can find the password as clear text.

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   Like         Discuss         Correct / Improve     java   string class   string   immutable  immutability   string pool   garbage collection   advanced     Asked in 4 Companies      Expert


 Q2. What are the disadvantages of Design Patterns ?Design Pattern2018-06-20 12:20:03

Ans. 1. Design patterns are abstraction heavy and hence sometimes creates memory and performance overheads.

2. Sometimes they create unnecessary complexity without much added advantage.

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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q3. What is RMI ?
Anonymous
Ans. RMI stands for Remote Method Invocation. Traditional approaches to executing code on other machines across a network have been confusing as well as tedious and error-prone to implement. The nicest way to think about this problem is that some object happens to live on another machine, and that you can send a message to the remote object and get a result as if the object lived on your local machine. This simplification is exactly what Java Remote Method Invocation (RMI) allows you to do.

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   Like         Discuss         Correct / Improve     java   rmi   networking     Asked in 2 Companies


  Q4. Which Software Development methodology is being used in your current Job ?General
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Ans. We are using Agile methodology. I attend daily stand up where the development leads takes the status of assigned stories, achievements, any bottlenecks or challenges. We follow iteration of 2 weeks.

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   Like         Discuss         Correct / Improve     sdlc   agile methodology   software system analyst   software developer interview   development lead   project lead interview     Asked in 14 Companies        frequent


Frequently asked in high end product companies.
 Q5. Write code for LRU CacheCore Java2017-01-10 10:15:17

Ans. https://www.geeksforgeeks.org/lru-cache-implementation/

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   Like         Discuss         Correct / Improve     cache  LRU cache  coding  code     Asked in 10 Companies      intermediate


 Q6. What are the challenges you faced in any of your project ?General2018-05-25 08:18:36

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


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q7. How can you identify Performance issues before going to production ?General2018-05-25 08:19:59

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


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 Q8. Which data structure would you use to implement LRU cache and Why ? Can you tell me the time complexity for it ?Algorithm2018-05-25 08:40:21

Ans. We can use LinkedHashMap as it will give time complexity of O(1) for lookup and We can maintain the insertion order to identify the Last used elements for eviction.

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   Like         Discuss         Correct / Improve     LRU Cache     Asked in 1 Companies


 Q9. Design a Program to clone an object and all it's children.
Design2018-06-13 07:42:57

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


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   Like         Discuss         Correct / Improve     code  coding  cloning  design pattern   cloning design pattern     Asked in 1 Companies


 Q10. Tell something about Dependency Injection and it's drawbacks. In which situation, you may not like to use dependency injection ?Design2018-06-13 08:06:24

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


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q11. Given a String with letters , numbers and special characters , extract Tokens from it. The rules for Token extraction are ac follows

1. Should for token of all characters till a number or special character is found
2. Should form token of all numbers till a character or special character is found
3. Special character in itself is a token
4. Ignore white spaces

For example - Bob Said "He is here"

should result in

Bob A
Said A
" S
He A
is A
here A
" S

where a is specifying alphabet and S as special character
Design2018-06-19 08:05:12

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


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   Like         Discuss         Correct / Improve     code  coding  string     Asked in 1 Companies


 Q12. Design a Whats app like messaging application. architecture2018-06-19 08:05:41

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


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q13. What is immutability and What are it's disadvantages ?Design2018-06-20 12:20:19

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


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   Like         Discuss         Correct / Improve     immutable  immutability objects   immutability     Asked in 1 Companies


 Q14. Can you explain any of your project bug for which you had to struggle a lot ?General2018-06-20 12:20:39

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


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   Like         Discuss         Correct / Improve          Asked in 1 Companies




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