Vaco Binary Semantics Software Engineer Interview Questions and Answers

Q1. Palindrome String
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Q2. Find first non repeatable character in a string
Ans. 
Find the first non-repeating character in a string
• Create a hash map to store the frequency of each character in the string

• Iterate through the string and update the frequency in the hash map

• Iterate through the string again and return the first character with frequency 1
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Q1. Find the triplets in an array, where sum of two elements is present as an elementz
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Find triplets in an array where sum of two elements is present as an element
• Iterate through the array and for each element, check if there are two other elements whose sum equals the current element

• Use a nested loop to find all possible combinations of triplets

• Store the triplets in a separate list and return the result
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Q2. Data access specifiers
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30 question MCQ with Essay.

Sql queries , Python

Q1. Analytical skills
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Q1. 1. Learn Data structures 2. Learn basic python 3. Should know OOPs concept 4. Knowledge of MySQL or any other relational database
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Q1. 1. Data Structures 2. Algorithms 3. Python coding challenges small 4. OOPs Concept
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Q1. 1. About last job or you collage project 2. About your educational background 3. Aptitude questions 4. Communication Skills
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Q1. Google PGM or VBS PGM or Lead conduct this round 1. Educational background 2. Final year project if you are fresher 3. Communication Skills
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