Interview Questions and Answers - Order By Newest Q1531. Can you organize following Log4j levels in hierarchy ? Log4j
Ans. DEBUG Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1532. What is the difference between DEBUG and TRACE logging levels ? Log4j
Ans. TRACE designates finer grained informational events than the DEBUG.TRACE is level lower than DEBUG. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1533. how many reducer task runs on a hadoop cluster ? BigData
Ans. Generally one reducer runs for all mappers, but it can be increased as per requirements. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies This question was recently asked at 'Veritas'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies This question was recently asked at 'Veritas'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies This question was recently asked at 'Veritas'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies This question was recently asked at 'Veritas'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1538. Given array of integers, find first two numbers that adds up to 10. Core Java
This question was recently asked at 'Amazon'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Ans. array is traversed from first element to last element. Here current element is compared with next element. If current element is greater than next element it is swapped. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1540. Write code to check if a Binary tree is symmetrical Algorithm
This question was recently asked at 'Amazon'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1541. Write a program to reverse words of a sentence. Core Java
This question was recently asked at 'Amazon'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1542. how to get most significant bit from a byte? Core Java
This question was recently asked at 'Amazon'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1543. What data structure will you use if we have to search an element in million of elements ? Data Structure
This question was recently asked at 'Microsoft'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1544. Write a function that returns the depth of a tree. Algorithm
This question was recently asked at 'Amazon'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1545. Write code to find the node where two linked lists intersect. Algorithm
This question was recently asked at 'Amazon'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1546. Check if tic tac toe has a winner Algorithm
This question was recently asked at 'Microsoft'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1547. Write program to balance a binary tree Algorithm
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1548. Given a graph, find if it represents a tree Algorithm
Ans. We can simply find it by checking the criteria of a tree. A tree will not contain a cycle, so if there is any cycle in the graph, it is not a tree. We can check it using another approach, if the graph is connected and it has V-1 edges, it could be a tree. Here V is the number of vertices in the graph Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1549. Explain different sorting algorithms and Big O of each Algorithm
This question was recently asked at 'Microsoft,ServiceNow'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 2 Companies Q1550. Write a program to find loop in a linked list Algorithm
This question was recently asked at 'Microsoft'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1551. How to convert a bst to doubly linked list Algorithm
This question was recently asked at 'Amazon'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q1552. What is RPM ? Tool
Ans. Redhat Packaging system or rpm is a Package Manager or type of Package Management system extensively used for Linux systems. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1553. What is priority inversion inheritance method?
Ans. https://en.wikipedia.org/wiki/Priority_inversion Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Ans. Priority inversion is a problematic scenario in scheduling in which a high priority task is indirectly preempted by a lower priority task effectively inverting the relative priorities of the two tasks. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 5 Companies Q1555. Does Hibernate synchronize entity with the database automatically i.e any change to entity gets updated in DB ? Hibernate
Ans. Yes, the feature is there but can be override with changing the Flush Mode. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1556. How can we make sure that Hibernate doesn't update the entity changes to DB or how to keep the entity detached ? Hibernate
Ans. If it's only a read only transaction, we can wrap the get / load call in read only transaction. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1557. What is the difference between session.clear and session.evict ? Hibernate
Ans. session.clear clears all the objects from session whereas session.evict is used for evicting a particular entity. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1558. What is the use of Hibernate session.clear() ? Hibernate
Ans. It is used to clear the session and is used to dissociate disconnect all the objects from the session. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1559. What is the use of Hibernate session.evict()? Hibernate
Ans. It is used to dissociate / disconnect a particular object from the session. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q1560. What are the benefits of using Prepared statements ? Database
Ans. 1. Precompilation , DB-side caching and reuse of same execution plan leads to overall faster execution. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies
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Which of the following session method is used to disassociate / disconnect all objects from the session
