What are the three major characteristics that you bring to the job market? What motivates you to do a good job? What two or three things are most important to you at work? What qualities do you think are essential to be successful in this kind of work?
Top 15 Java Multithreading, Concurrency Interview Questions Answers asked in Investment banks Multi-threading and concurrency questions are an essential part of any Java interview. If you are going for any Java interview on any Investment bank e.
They just want to ensure that the guy has solid knowledge of multi-threading and concurrent programming in Java because most of them are in the business of performance which provides them a competitive advantage and it's hard to write correct and robust concurrent code.
Most of the time the focus on microsecond latency, that's why a good knowledge of how to use effectively to minimize latency and improve throughput is important. These are some of my favorite thread interview questions on Java asked on different on a different time.
I am not providing an answer to these thread interview questions but I will give you hint whenever possible, some time hint is also enough to answer.
I will update the post further with detailed answers just like I did for 10 Singleton interview questions in Java recently. After the introduction of concurrency package in JDK 1. Same is true for Java 8 and Java 9, where questions on lambda expression and parallel streams, new fork-join pool, CompletableFuture is also on the rise in and will remain in Hence you should prepare well for those topics.
Barclays, Morgan Stanley, Citibank etc.
This thread interview question is mostly asked in the first round or phone screening round of interview and purpose of this multi-threading question is to check whether the candidate is familiar with the concept of "join" method or not.
The answer to this multi-threading questions is simple it can be achieved by using the join method of Thread class. If you are not familiar with join method, please see my post how to join threads in Java. You need to implement a high-performance cache which allows multiple readers but the single writer to keep the integrity how will you implement it?
The major advantage of lock interfaces on multi-threaded and concurrent programming is they provide two separate lock for reading and writing which enables you to write high-performance data structure like ConcurrentHashMap and conditional blocking. This java threads interview question is getting increasingly popular and more and more follow-up questions come based on the answer of the interviewee.
I would strongly suggest reading about Locks before appearing for any Java multi-threading interview because nowadays It's heavily used to build cache for an electronic trading system on client and exchange connectivity space. Another frequently asked thread interview question in Java mostly appear in a phone interview.
The only major difference is that wait releases the lock or monitor while sleep doesn't release any lock or monitor while waiting. The wait is used for inter-thread communication while sleep is used to introduce pause on execution.
See my post wait vs sleep in Java for more differences 4 Write code to implement blocking queue in Java? This is relatively tough Java multi-threading interview question which serves many purposes, it checks whether a candidate can actually write Java code using thread or not, it sees how good candidate is on understanding concurrent scenarios and you can ask a lot of follow-up question based upon his code.
If he uses wait and notify method to implement blocking queue, Once candidate successfully writes it you can ask him to write it again using new Java 5 concurrent classes etc.
Sometimes they even ask to implement a solution of dining philosopher problem as well.Here are top 31 objective type sample apache spark interview questions and their answers are given just below to them. These sample questions are framed by experts from Intellipaat who train for Spark Training to give you an idea of type of questions which may be asked in interview.
We have taken full care to give correct answers for all the questions. R01 11 R02 8 R03 12 R04 9 SYSTEM 4.
You have room for each to grow by 20 more extents each. Is there a problem? Should you take any action No there is not a problem. Practice for certification success with the Skillset library of over , practice test questions. We analyze your responses and can determine when you are ready to sit for the test.
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We have Linux interview questions answers in pdf format, one can easily download it. SAP CRM (Customer Relationship Management) Interview Questions SAP EHS (Environment, Health, and Safety Management) Interview Questions SAP EWM .
A job interview is an interview consisting of a conversation between a job applicant and a representative of an employer which is conducted to assess whether the applicant should be hired.
Interviews are one of the most popularly used devices for employee selection. Interviews vary in the extent to which the questions are structured, from a totally unstructured and free-wheeling .