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eBay Interview Questions and Answers for Experienced
eBay Interview Experiences for Experienced
2 interviews found
Shalinee
Selected
I applied via Recruitment Consulltant
Group discussion to ebay selling
(2 Questions)
- Q1. Ebay related queries and question
- Q2. Ebay's product and work facility
- Ans.
Ebay offers a wide range of products and has modern work facilities.
Ebay offers products in various categories such as electronics, fashion, home & garden, and more.
The company has modern work facilities with amenities like on-site cafes, fitness centers, and game rooms.
Ebay also provides flexible work arrangements and opportunities for career growth.
The company has a global presence with offices and operations in mult
Ebay selling world top too....
Interview Preparation Tips
- All skills for ebay company empl
I applied via Referral and was interviewed in Apr 2022. There were 3 interview rounds.
An English and Grammer test link is provided, and if you clear it, you are passed on to the next level
In this round of interviews, a tenured person shall be talking to you, be it a mix of formal and informal, they shall ask you about your family, your career until now, your educational qualifications, and all in all - getting to know your English proficiency.
Interview Preparation Tips
Customer Relation Executive Interview Questions asked at other Companies
Interview questions from similar companies
Aditya Sundaram
Interview Preparation Tips
Experience: First round was a simple round which involved 10 multiple choice questions and 3 coding questions on hackerrank platform.
Round: Technical Interview
Experience: Mainly on topics like networks, data structures and algorithms, operating systems. The interviewers looked for people who have had prior experience in web development and asked questions regarding web development in depth too.
Tips: I recommend everyone to read the book titled, 'Cracking the Coding Interview' as it was helpful in my approach to an interview.
General Tips: The one major thing that would give you the edge in joining Myntra would definitely be exposure to web development. Since it is not a part of the curriculum , it's all the more important for you to familiarize yourself with web development. In fact, a few projects in the same field would put you in a very advantageous position to get the job.
Skill Tips: 1. Start your placement preparations well ahead, no point regretting later.
2. Keep a concise resume. Do not take your resume to several pages.
3. Do not neglect aptitude preparation. Many people do this mistake and end up not clearing the first round for several companies.
4. Be thorough with your basics across all subjects. (Do not neglect any subject, even they you may like a few and dislike the others.)
5. Keep in mind, the interviewers are really friendly and try to make sure that you're not nervous during the interview. All they want to do is to test you. Be confident and give it your best shot.
Skills:
College Name: NIT Surathkal
Interview Questionnaire
10 Questions
- Q1. What do you do when your schedule is interrupted? How you handle it?
- Q2. PreOrder traversal without recursion?
- Ans.
PreOrder traversal without recursion is done using a stack to simulate the function call stack.
Create an empty stack and push the root node onto it.
While the stack is not empty, pop a node from the stack and process it.
Push the right child of the popped node onto the stack if it exists.
Push the left child of the popped node onto the stack if it exists.
- Q3. Build a bst out of the unsorted array by looping over the array and inserting each element to the tree?
- Ans.
Yes
Create an empty binary search tree (BST)
Loop over the unsorted array
For each element, insert it into the BST using the appropriate insertion logic
Repeat until all elements are inserted
The resulting BST will be built from the unsorted array
- Q4. Find 2 elements in array whose sum is equal to given number?
- Ans.
The question asks to find two elements in an array whose sum is equal to a given number.
Iterate through the array and for each element, check if the difference between the given number and the current element exists in the array.
Use a hash set to store the elements as you iterate through the array for efficient lookup.
Return the pair of elements if found, otherwise return a message indicating no such pair exists.
- Q5. How many types of trigger?
- Ans.
There are two types of triggers: DML triggers and DDL triggers.
DML triggers are fired in response to DML (Data Manipulation Language) statements like INSERT, UPDATE, DELETE.
DDL triggers are fired in response to DDL (Data Definition Language) statements like CREATE, ALTER, DROP.
Examples: A DML trigger can be used to log changes made to a table, while a DDL trigger can be used to enforce certain rules when a table is alt
- Q6. Can trigger be used with select statement?
- Ans.
Yes, triggers can be used with select statements in SQL.
Triggers are database objects that are automatically executed in response to certain events, such as insert, update, or delete operations.
While triggers are commonly used with insert, update, and delete statements, they can also be used with select statements.
Using triggers with select statements allows you to perform additional actions or validations before or af...
- Q7. Indexing in mysql? How many types of indexing in mysql?
- Ans.
Indexing in MySQL improves query performance. There are several types of indexing in MySQL.
Indexes are used to quickly locate data without scanning the entire table.
Types of indexing in MySQL include B-tree, hash, full-text, and spatial indexes.
B-tree indexes are the most common and suitable for most use cases.
Hash indexes are used for exact match lookups.
Full-text indexes are used for searching text-based data efficie...
- Q8. Engines in mysql?
- Ans.
Engines in MySQL are the underlying software components that handle storage, indexing, and querying of data.
MySQL supports multiple storage engines, each with its own strengths and features.
Some commonly used engines in MySQL are InnoDB, MyISAM, and Memory.
InnoDB is the default engine in MySQL and provides support for transactions and foreign keys.
MyISAM is known for its simplicity and speed but lacks transaction suppo...
- Q9. Singlton pattern?
- Q10. Can a constructor be private?
- Ans.
Yes, a constructor can be private.
A private constructor can only be accessed within the class itself.
It is often used in singleton design pattern to restrict object creation.
Private constructors are also useful for utility classes that only contain static methods.
Interview Preparation Tips
College Name: na
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Dec 2016. There were 4 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Given a 2d matrix with some D doors and W walls, we need fill distance matrix with minimum distance to the nearest door
- Ans.
Given a 2D matrix with doors and walls, fill distance matrix with minimum distance to the nearest door.
Iterate through the matrix and find the doors
Use Breadth-First Search (BFS) to calculate the minimum distance from each cell to the nearest door
Update the distance matrix with the minimum distances
- Q2. Given a read-only array we want to find kth smallest element in unordered array with O(1) space
- Ans.
Find kth smallest element in unordered array with O(1) space
Use the QuickSelect algorithm to partition the array and find the kth smallest element
Choose a pivot element and partition the array into two subarrays
Recursively partition the subarray that contains the kth smallest element
Repeat until the pivot element is the kth smallest element
Time complexity: O(n) average case, O(n^2) worst case
- Q3. Design question
- Q4. Find friends of friend who already are not friends with you
- Ans.
To find friends of friends who are not already friends with you, we can first find your friends and then their friends excluding yourself and your friends.
Get your list of friends
For each friend, get their list of friends
Exclude yourself and your friends from the final list of friends of friends
Interview Preparation Tips
Experience: It started with an informal talk after he gave his introduction. We talked about the cyclone that was going to be there and what I did in my internship and my previous projects. Then we moved to questions. After solving both questions he asked if I had questions.
Tips: Just walk the interviewer through the solution you're proposing.
Round: Other Interview
Experience: He started with a design question with how to stream an image such that all clients see the same image at the same time. You need to take care of delays, network problems. He kept on adding new elements like compression, streaming, utc time related issues, client rendering delays and so on.
Round: Other Interview
Experience: This was bar-raiser round.
Skills: Design, Algorithms And Data Structures, Graph Theory
College Name: IIT Madras
Skills evaluated in this interview
I appeared for an interview before Apr 2021.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
It started with an informal talk after he gave his introduction. We talked about the cyclone that was going to be there and what I did in my internship and my previous projects. Then we moved to questions. After solving both questions he asked if I had questions.
- Q1.
Kth Largest Element Problem Statement
Given an array of distinct positive integers and a number 'K', your task is to find the K'th largest element in the array.
Example:
Input:
Array: [2,1,5,6,3,8], K ... - Ans.
Find the Kth largest element in an array of distinct positive integers.
Sort the array in non-increasing order
Return the Kth element from the sorted array
Handle multiple test cases
- Q2.
Orange Rotting Problem Statement
Consider a grid containing oranges. Each cell in this grid can hold one of three integer values:
- Value 0: Represents an empty cell.
- Value 1: Represents a fresh orang...
- Ans.
The task is to determine the minimum time required for all fresh oranges to become rotten in a grid.
Create a queue to store the rotten oranges and their time of rotting.
Iterate through the grid to find the initial rotten oranges and add them to the queue.
Perform BFS by popping each rotten orange from the queue, rot adjacent fresh oranges, and add them to the queue with updated time.
Continue until the queue is empty, ke...
Round duration - 45 minutes
Round difficulty - Easy
This was a design 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
I appeared for an interview before Dec 2020.
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This round was purely based on Data Structures and Algorithms . One has to be fairly comfortable in solving Algorithmic problems to pass this round . Both the questions asked were quite common and luckily I had already prepared them from CodeStudio and LeetCode.
- Q1.
Binary Tree Traversals Problem Statement
Given a Binary Tree with 'N' nodes, where each node holds an integer value, your task is to compute the In-Order, Pre-Order, and Post-Order traversals of the binar...
- Ans.
Compute the In-Order, Pre-Order, and Post-Order traversals of a Binary Tree given in level-order format.
Implement functions to perform In-Order, Pre-Order, and Post-Order traversals of a Binary Tree.
Use level-order input to construct the Binary Tree.
Traverse the Binary Tree recursively to generate the required traversals.
Ensure proper handling of null nodes represented by -1 in the input.
Return the three traversals as
- Q2.
Reverse Linked List Problem Statement
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
Input:
The first line of input is an intege... - Ans.
Reverse a singly linked list by altering the links between nodes.
Iterate through the linked list and reverse the links between nodes
Use three pointers to keep track of the current, previous, and next nodes
Update the links between nodes to reverse the list
Return the head of the reversed linked list
(1 Question)
Round duration - 45 Minutes
Round difficulty - Medium
This round basically tested some concepts from Data Structures and File Manipulation .
- Q1.
Intersection of Two Arrays Problem Statement
Given two arrays
AandBwith sizesNandMrespectively, both sorted in non-decreasing order, determine their intersection.The intersection of two arrays in...
- Ans.
The problem involves finding the intersection of two sorted arrays efficiently.
Use two pointers to iterate through both arrays simultaneously.
Compare elements at the pointers and move the pointers accordingly.
Handle cases where elements are equal and update the intersection array.
Return the intersection array as the result.
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
I appeared for an interview before May 2021.
(1 Question)
Round duration - 120 minutes
Round difficulty - Easy
It was a mix of mathematical aptitude, logical ability, and puzzles along with 2 programming questions of easy and medium levels. Time was enough and no sectional time was present. 1-2 MCQs on SQL was also present.
- Q1.
Boolean Matrix Transformation Challenge
Given a 2-dimensional boolean matrix
matof size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi... - Ans.
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
Iterate through the matrix to find elements with value 1
Store the row and column indices of these elements
Update the entire row and column for each element found to be 1
Round duration - 60 minutes
Round difficulty - Easy
It was an online video interview round on HackerEarth with a simultaneous code option. It was mostly justifying your resume in the first 15 minutes. After that OOPS was majorly asked. Basics of programming including questions on STL were asked. A class that required inheritance was asked by the interviewer to write. I was helped by the interviewer if I got stuck somewhere, Some questions on the implementation of hashmaps and priority queues were also asked. A puzzle was asked which luckily struct to me at that moment.
Interview Preparation Tips
Tip 1 : Clear basics
Tip 2 : Prepare well
Tip 3 : Do at-least 2 projects
Tip 1 : Write only those things in resume in which you are 100% confident
Tip 2 : Write maximum projects you have and be ready to explain them thoroughly
Skills evaluated in this interview
I appeared for an interview before Dec 2020.
(2 Questions)
Round duration - 120 minutes
Round difficulty - Medium
The Entire Test is held in HackerRank Platform. It has:
2 coding questions (one easy and one medium)
2 output questions(medium)
2 Aptitude(easy)
1 general Computer science(medium)
It took me 30 min for each coding questions. I did not know that general question is related to bash commands.
Tips: Practice the Warmup questions in Hacker Rank.
Do some Basic aptitude questions.
Thorough with the basic C and C++ concepts
- Q1.
Binary Tree to Doubly Linked List
Transform a given Binary Tree into a Doubly Linked List.
Ensure that the nodes in the Doubly Linked List follow the Inorder Traversal of the Binary Tree.
Input:
The fi... - Ans.
Convert a Binary Tree into a Doubly Linked List following Inorder Traversal.
Perform Inorder Traversal of the Binary Tree to get the nodes in order.
Create a Doubly Linked List by linking the nodes in the order obtained from Inorder Traversal.
Return the head of the Doubly Linked List as the output.
- Q2.
Unique Element in Array
Given an arbitrary array
arrconsisting ofNnon-negative integers where every element appears thrice except for one. Your task is to find the element in the array that appears onl... - Ans.
Find the unique element in an array where every other element appears thrice.
Use XOR operation to find the unique element.
Iterate through the array and XOR each element to find the unique one.
Return the unique element as the answer.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
It's completely around the data structures. The questions are a bit tricky but once u think without any tension u can get through easily. The interviewer is helpful and gives u few hints if u catch them at the right point of time u got it.
Tips: got through Data Structures and Algorithms Made Easy by Narasimha Karumanchi. It's a best book for the interviews.
- Q1.
Binary Tree Traversals Problem Statement
Given a Binary Tree with 'N' nodes, where each node holds an integer value, your task is to compute the In-Order, Pre-Order, and Post-Order traversals of the binar...
- Ans.
Implement a function to compute In-Order, Pre-Order, and Post-Order traversals of a Binary Tree given in level-order format.
Parse the input level-order tree elements to construct the binary tree.
Implement recursive functions for In-Order, Pre-Order, and Post-Order traversals.
Return the traversals as lists of lists for each test case.
- Q2.
Delete N Nodes After M Nodes in a Linked List
Given a singly linked list and two integers 'N' and 'M', traverse the linked list to retain 'M' nodes and then delete the next 'N' nodes. Continue this proces...
- Ans.
Traverse a linked list to retain 'M' nodes and then delete the next 'N' nodes, repeating until the end of the list.
Create a function that takes the head of the linked list, 'N', and 'M' as input parameters.
Traverse the linked list, retaining 'M' nodes and deleting the next 'N' nodes in each iteration.
Update the pointers accordingly to skip 'N' nodes after retaining 'M' nodes.
Repeat this process until the end of the lin...
(1 Question)
Round duration - 60 minutes
Round difficulty - Easy
The interviewer asked to put everything on the blackboard and write down the code of each and everything.
Question : Explain all the search algorithm you know with space and Time complexities.
Answer : Linear search : It is a sequential search algorithm where the entire array is traversed till the desired element is not found. Time complexity is O(N) and auxiliary space is O(1).
Binary search : In this algorithm, a sorted array is searched by repeatedly dividing the search interval in half.
Steps :
1. Initially the interval covers the whole array.
2. If the value to be searched is less than the item in the middle of the interval, narrow the interval to the lower half. Otherwise, narrow it to the upper half.
3. The process is repeated until the value is found or the interval is empty.
Time complexity is O(log n) and auxiliary space is O(1) in case of iterative implementation.
- Q1.
Maximum Frequency Number Problem Statement
Given an array of integers with numbers in random order, write a program to find and return the number which appears the most frequently in the array.
If multip...
- Ans.
Program to find the number with maximum frequency in an array of integers.
Create a dictionary to store the frequency of each number in the array.
Iterate through the array and update the frequency count in the dictionary.
Find the number with the maximum frequency in the dictionary and return it.
If multiple elements have the same maximum frequency, return the one with the lowest index.
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
Thommandru Vishnu
Interview Questionnaire
9 Questions
- Q1. All the leaf nodes of tree are doubly linked,print only the leaf nodes of a tree
- Ans.
Print only the leaf nodes of a doubly linked tree.
Traverse the tree and check if a node has no children and both left and right pointers are null.
If yes, then it is a leaf node and print it.
If no, then continue traversing the tree.
Use recursion to traverse the tree in a depth-first manner.
- Q2. LRU page Replacement Algorithm for large data
- Ans.
LRU page replacement algorithm is used to replace the least recently used page in memory with a new page.
LRU stands for Least Recently Used
It is a cache eviction algorithm
It is used to manage memory in operating systems
It works by keeping track of the pages that are used recently and the ones that are not
When a new page is to be loaded into memory, the algorithm checks which page has not been used for the longest time
- Q3. Given a linked list with 2 parameters m,n. Now start reversing the m nodes and leave n nodes and continue it till u reach the end
- Ans.
Reverse m nodes and leave n nodes in a linked list till the end.
Traverse the linked list till m nodes and reverse them
Traverse n nodes and continue reversing m nodes
Repeat the above step till the end of the linked list
Handle edge cases like m or n being greater than the length of the linked list
- Q4. Inorder Traversal of a tree
- Ans.
Inorder traversal is a way of visiting all nodes in a binary tree by visiting the left subtree, then the root, and then the right subtree.
Start at the root node
Traverse the left subtree recursively
Visit the root node
Traverse the right subtree recursively
Repeat until all nodes have been visited
- Q5. Inorder Travesal of a tree without recursion(write the code)
- Ans.
Inorder traversal of a tree without recursion
Create an empty stack and initialize current node as root
Push the current node to stack and set current = current.left until current is NULL
If current is NULL and stack is not empty, pop the top item from stack, print it and set current = popped_item.right
Repeat step 2 and 3 until stack is empty
- Q6. Given an array of numbers in which duplicates are there and one triplicate is there. find that number
- Ans.
Find the triplicate number in an array of duplicates.
Iterate through the array and keep track of the frequency of each number.
Return the number that appears three times.
If no number appears three times, return null.
- Q7. Explain all the serach algorithm you know with space and Time complexities
- Ans.
Explanation of search algorithms with their space and time complexities.
Linear Search - O(n) time complexity, O(1) space complexity
Binary Search - O(log n) time complexity, O(1) space complexity
Jump Search - O(√n) time complexity, O(1) space complexity
Interpolation Search - O(log log n) time complexity, O(1) space complexity
Exponential Search - O(log n) time complexity, O(1) space complexity
Fibonacci Search - O(log n)
- Q8. Given a situation and asks you which search algorithm suits the best in that situation
- Q9. Given an array of length n and in which numbers from 1-n will be there and each number can repeat any number of times find out which repeated more number of times
- Ans.
Find the most repeated number in an array of length n with numbers 1-n.
Create a dictionary to store the count of each number in the array
Iterate through the array and update the count in the dictionary
Find the key with the highest count in the dictionary
Interview Preparation Tips
Experience: Basically, it's not resume shortlist, it's a 9 pointer shortlist
Round: Test
Experience: The Entire Test is held in HackerRank Platform. it has
2 coding questions (one easy and one medium)
2 output questions(medium)
2 Aptitude(easy)
1 general Computer science(medium)
it took me 30 min for each coding questions.I was not known that general question is related to bash commands.
Tips: Practice the Warmup questions in Hacker Rank.
Do some Basic aptitude questions.
Thorough with the basic c and c++ concepts
Duration: 120 minutes
Total Questions: 7
Round: Technical Interview
Experience: It's completely around the data structures. The questions are a bit tricky but once u think without any tension u can get through easily. The interviewer is helpful and gives u few hints if u catch them at the right point of time u got it.There are 2 more questions which I haven't mentioned.
Tips: got through Data Structures and Algorithms Made Easy by Narasimha Karumanchi. It's a best book for the interviews.
Round: Technical Interview
Experience: The interviewer asked to put everything on the blackboard and write down the code of each and everything.
Tips: Go to the website -----/ and study all the interview questions and modules
Round: HR Interview
Experience: It's Technical+ HR interview all the technical questions went around resume. it went around 45 minutes they are very particular about what you wrote in the resume.HR questions are general like
whats your future plans
where will u see yourself in the office after 5 years?
Tips: please make sure that whatever you write in resume should be known to you very well.Don't write false things about yourself.And make sure you know completely about the projects you are going to write in resume(atleast the part you worked)
General Tips: Be sure of what you are saying. Don't be tensed and answer to your best.
Skills: Programming, Data Structures
College Name: VIT VELLORE
Skills evaluated in this interview
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