Arrow Electronics Web Engineer Interview Questions and Answers

Q1. C questions on oops concepts
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Q2. Python and ml questions
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Q1. Salary discussion
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Q1. Basic fundamentals of cs, dsa
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Q2. Puzzles, os concepts
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Technical plus aptitude based on domain you choose( pre placemt talks)

Q1. Communication theory , aptitude, electronics basics for firmware domain(screening)
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Q2. Coding related questions
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Q1. Circuits related practical questions
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Q1. General things only
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Profit and loss ,time and work ,speed distance and time

Java ,ops ,collection frameworks

2 problem was given to solve
1) Smallest Negative balance - -----%20America%20-%20Weekly%20Algorithm%20Challenges/Week%2021%20Algorithm%20Challenge/Smallest%20Negative%20Balance.md
2) Find the absolute difference between alpha & beta from the array.
Alpha -An element k in a array occurs k consecutive time
Beta - An element k in an array occurs k consecutive time starting from index k

Sample input
Arr[] = {2,2,2,4,4,4,4,1,2,2]
Output
Alpha - 3
Beta - 1
Absolute difference - 1

Note : consider array index starts with 1

Q1. General behavioral and situational questions about team members
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Q1. Identify if the number is positive, negative or zero
Ans. 
Identify if a number is positive, negative, or zero
• Check if the number is greater than 0 to determine if it is positive

• Check if the number is less than 0 to determine if it is negative

• If the number is neither greater nor less than 0, it is zero
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Quantitative Questions
Computer Science core MCQ questions
2 Coding Questions

Q1. Explain Projects mentioned on resume
Ans. 
Developed a web application for tracking inventory and sales data
• Used React.js for front-end development

• Implemented RESTful APIs for backend using Node.js

• Utilized MongoDB for database management
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Q2. Questions based on Linked List
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Q1. Add two linked list
Ans. 
To add two linked lists, iterate through both lists simultaneously and add corresponding nodes, considering carry from previous addition.
• Create a dummy node to hold the result.

• Initialize current node to dummy node.

• Iterate through both lists, adding values and carry from previous addition.

• Move to next nodes in both lists.

• Handle cases where one list is longer than the other.

• Handle final carry if present.
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Q2. Find shortest path in graph
Ans. 
Use Dijkstra's algorithm to find the shortest path in a graph
• Implement Dijkstra's algorithm to find the shortest path between two nodes in a graph

• Maintain a priority queue to keep track of the shortest distance to each node

• Update the shortest distance to each node as you traverse the graph

• Track the path by storing the previous node for each node visited
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Q1. Check tree is BST
Ans. 
Check if a binary tree is a Binary Search Tree (BST)
• Perform an in-order traversal of the tree and check if the resulting array is sorted

• Keep track of the previous node value during traversal to compare with the current node value

• Ensure that each node's value is greater than the previous node's value in the in-order traversal
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Q2. Check substring palindrome or not
Ans. 
Check if a substring in an array of strings is a palindrome or not.
• Iterate through each string in the array

• For each string, check if any of its substrings are palindromes

• Return true if a palindrome substring is found, false otherwise
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