Taehwa Enterprises Senior Engineer Interview Questions and Answers

Q1. Asked about last experience and sales network in PSU's
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Q1. Location preference and relocation timing.
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Q1. They asked about technical
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Q2. Provide answers for the same
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Q1. They asked about technical
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Q2. Answers according to question
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Q1. How to do grid check and what are the inputs required for gridcheck
Ans. 
Grid check is a process to verify the accuracy of a grid system in a design.
• Grid check involves measuring the spacing between grid lines to ensure they meet the specified dimensions.

• Inputs required for grid check include grid line spacing, grid line thickness, and overall grid dimensions.

• Grid check can be done using tools like rulers, calipers, or specialized grid check templates.

• Grid check is important in ensuring ali
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Q2. How do you analyze the powergrid
Ans. 
Analyzing the powergrid involves studying its components, performance, and efficiency.
• Start by examining the overall layout and structure of the powergrid

• Analyze the distribution of power sources, transmission lines, and substations

• Evaluate the efficiency of the powergrid in terms of energy loss and voltage stability

• Use simulation software to model different scenarios and optimize the powergrid

• Consider factors like ren...read more
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Q1. Write code of frequency divider
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Q2. Difference between latch & flip flop
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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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Q1. Questions related to wireless communication concepts
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Q2. C and c++ coding concepts
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Q1. Why are you looking for change
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Q2. Are you ready to relocate
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Duration: 1Hour 30 Minutes, 2 Coding Questions of Total 175 Marks. 1st Question has 75 marks and 2nd Question has 100 marks.

Q1. 1. Find the smallestMissingNumber in given array using Bitwise OR operation alone 2. Based on Array data Manipulation.
Ans. 
Using Bitwise OR operation to find the smallest missing number in an array.
• Iterate through the array and perform Bitwise OR operation with each element to set corresponding bit in a bitmask

• Iterate through the bitmask to find the first unset bit, which represents the smallest missing number

• Example: Array [0, 1, 3, 4, 6] would have a bitmask of 10101, smallest missing number is 2
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Q2. Q2: Customized Data Extraction From Given Dynamic Array & Perform Some Math Operations On the Extracted Data
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Q1. Write a Pseudo code for given scenario?
Ans. 
Pseudo code for a scenario
• Define variables and data structures needed

• Write the main logic using conditional statements and loops

• Handle edge cases and error conditions

• Test the pseudo code with sample inputs
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Q1. System Design & Design Pattern based questions
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Q1. Not Applicable (Yet to be scheduled)
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