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ServiceNow Java Developer Interview Questions and Answers
ServiceNow Java Developer Interview Experiences
1 interview found
Anonymous
I applied via Approached by Company and was interviewed in Dec 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Dsa question, I don’t remember
- Q2. Check if the sentence is palindrome or not
(2 Questions)
- Q1. Discussion was on Binary tree and tree traversal. Asked me to write binary tree complete program to insert amd traversal of binary tree with few changes on how to insert.
- Ans.
A complete Java program for inserting and traversing a binary tree with customizable insertion logic.
Binary Tree Node Class: Create a class 'Node' with properties for value, left, and right children.
Insertion Method: Implement a method to insert nodes based on specific criteria (e.g., value comparison).
Traversal Methods: Include methods for in-order, pre-order, and post-order traversal.
Example Insertion: If inserting 5...
- Q2. In depth discussion on my experience my projects.
Interview Preparation Tips
- Dsa and core java, System design
Overall my experience wasn’t great.
Skills evaluated in this interview
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I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. 1. Core Java - OOPS features, Abstract classes and Interface, Inner Classes, String and Object Class, Equals and HashCode methods, Runtime and Compile time exception, Method overloading and overriding, Cus...
Interview Preparation Tips
2. Basic DB queries
3. Basic Unix commands
I applied via Naukri.com and was interviewed in Mar 2020. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. What is web service flow
- Ans.
Web service flow is the sequence of steps involved in the communication between a client and a server over the internet.
Web service flow involves a client sending a request to a server
The server processes the request and sends a response back to the client
The response can be in various formats such as XML, JSON, or plain text
Web service flow can be synchronous or asynchronous
Examples of web services include RESTful API...
- Q2. How to check ports in Solaris or linux machine
- Ans.
To check ports in Solaris or Linux machine, use the netstat command.
Open the terminal and type 'netstat -an' to display all open ports.
Use 'netstat -an | grep
' to check if a specific port is open. To check listening ports, use 'netstat -an | grep LISTEN'.
For Solaris, use 'netstat -an | grep .
' instead of '| grep '.
Interview Preparation Tips
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. Spring Collections Difference between list and set What is sorted mean in hashed set java Serialization Exceptions How can you give an exception to caller method Unix- how to move a folder without g...
- Ans.
Interview questions for Software Developer related to Spring, Collections, Serialization, Exceptions, Unix, Annotations, Json, Build tools, Restful services, and more.
List and Set are both collection interfaces in Java. List allows duplicates and maintains insertion order while Set doesn't allow duplicates and doesn't maintain any order.
Sorted in Hashed Set means that the elements are stored in a sorted order based on ...
Skills evaluated in this interview
I appeared for an interview before Mar 2021.
(2 Questions)
Round duration - 45 minutes
Round difficulty - Medium
Technical Interview round with questions on DSA.
- Q1.
Reverse Words in a String: Problem Statement
You are given a string of length
N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o... - Ans.
Reverse words in a string while handling leading, trailing, and multiple spaces.
Split the input string by spaces to get individual words
Reverse the order of the words
Join the reversed words with a single space in between
Handle leading, trailing, and multiple spaces appropriately
- Q2.
Reverse a Stack Using Recursion
You are given a stack of integers. Your task is to reverse the stack using recursion without using any extra space other than the internal stack space used due to recursion...
- Ans.
Reverse a stack using recursion without using any extra space other than the internal stack space.
Use recursion to pop all elements from the original stack and store them in function call stack.
Once the stack is empty, push the elements back in reverse order.
Base case of recursion should be when the original stack is empty.
(2 Questions)
Round duration - 45 minutes
Round difficulty - Medium
Technical Interview round with questions on DSA.
- Q1.
Convert a Binary Tree to its Mirror Tree
Given a binary tree, convert this binary tree into its mirror tree. A binary tree is a tree in which each parent node has at most two children. The mirror of a bin...
- Ans.
Convert a binary tree to its mirror tree by interchanging left and right children of all non-leaf nodes.
Traverse the binary tree in a recursive manner.
Swap the left and right children of each non-leaf node.
Continue this process until all nodes have been processed.
- Q2.
Remove Nth Node from End of Linked List
You are given a singly linked list with 'N' nodes, each containing integer data, and an integer 'K'. Your goal is to remove the 'K'th node counting from the end of ...
- Ans.
Remove the Kth node from the end of a singly linked list.
Use two pointers approach to find the Kth node from the end.
Handle edge cases like removing the head node or removing the last node.
Update the pointers to remove the Kth node and reconnect the list.
Round duration - 30 minutes
Round difficulty - Easy
Typical Managerial round.
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Interview Preparation Tips
College Name: NIT SURATHKAL
Interview Preparation Tips
Experience: Oracle had an online test which includes 3
Sections:
1. Programming: basic C++/java programming + data structure. One need to have good hand over oops
to score well in this section.
2. Aptitude: General Aptitude Questions
3. General Maths: Very simple maths problem (+2 level) but needs very very good speed.
Tips: Individual cutoff was not declared, but different cutoff for different profile is expected.
Oracle has no GD round.
Round: Interview
Experience: In 2nd round of interview, there was more programming, less resume based question and more emphasis on will I be comfortable in an IT sector. Some apti questions were also asked.
Round: Interview
Experience: 1st round was completely on resume based. Each and every project and intern is discussed in detail. Most of the extracurricular activities were also discussed. In the 1st interview, some basic program like fibonacci series by recursion, star pattern by loop etc were asked.
Round: Interview
Experience: Next round was HR. I was asked about the earlier 2 interviews and some basic HR questions.
College Name: IIT Roorkee
NITIN SAMANTA
Interview Preparation Tips
Experience: The sections were Quantitative, Logical, Verbal and Computer Science.The three sections contained very basic questions of general aptitude while the Computer Science section contained questions on Database Management, OS, SQL and Programming Aptitude.
Round: Test
Experience: The question was to program a logic to test the correctness of a solved sudoku. We were allowed to code in C++, Java, C or pseudo code.
Round: Technical Interview
Experience: Were asked simple questions and program them like reversing string without temporary variables, finding the earlier date when entered as string and finding the difference in number of days between them.
I was asked to explain him my internship project in great detail and above all one should be prepared to answer the question 'Why IT?' if from a non IT background. Then I was asked to program a logic for 'Search and replace" tool of MS Word.
Round: HR Interview
Experience: Was asked about my background in detail and stressed again and again on 'Why IT?'. Then he asked me to prepare a summary on the merits and demerits of various Employee Data Management techniques for an organisation. For the end of the interview you should have a question which you would ask to the interviewer.
General Tips: Don't try to over emphasize the correctness of your logic if the interviewer finds a glitch. It irritates him. Be interactive in your HR round. In our case it was the VP of Oracle India who took the final round. So I asked him about his experience in the company. He was very happy to share it with me. But asses your interviewer before you put forth these queries cause your interviewer might not be as jolly as mine was.
Skills:
College Name: NIT Surathkal
Interview Preparation Tips
Tips: If you think it is worth it, write it in the resume.
Round: Technical Interview
Experience: I discussed a political party in one such interview in another company. He was impressed rather inspired.
Tips: All they are looking for in this interview is that you have a basic aptitude
Round: HR Interview
Tips: Try to be as real as possible. They know people and have great deal of experience. You cannot fake it.
General Tips: Peace yoo
College Name: IIT BOMBAY
Interview Questionnaire
2 Questions
- Q1. Ques on SQL,puzzles, C
- Q2. Basic family background, hobbies, academics, why interest in software field, questions from the ppt they presentec earlier
Interview Preparation Tips
Experience: apti and logical reasoning ques were not tough and with basic knowledge on C and SQL I could easily solve the questions
Tips: Just try to maintain a good speed while solving
Round: Technical Interview
Experience: mostly they focus their questions based on the form that we had to fill. it had details about our extracurricular activities, main courses of interest, training and project work, software languages known, academics.
Tips: the form was to be filled with accuracy and only those points about which one is confident enough should be added
Round: HR Interview
Experience: it was just a normal interaction. they wanted to know the kind of person i am, my strengths and weakness. any impressive qualities unique of me. my favourite author. it lasted no longer than 10 minutes . and try to acquire as much background information as you about the company.
Tips: try to be honest with your answers. do not fake since they can easily catch you. do not give any such answers about which you are not confident or any view where you cannot defend yourself.
Skill Tips: I learned sql from w3school.com.
Skills: confidence, amicable nature, leadership qualities, participation in extracurricular activities, puzzle solving, Aptitude
College Name: NIT ROURKELA
Motivation: Its quite simple, I wanted to land with good job before i leave nit.
Funny Moments: Since it was the first time i was facing an interview, so i asked my interviewer how were my answers.
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