Kommunicate Interview Questions and Answers

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Q1. Basic questions to know about your past Internships or projects
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Q1. General Recruitment based questions
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Q1. Given a string with parenthesis, return if the parenthesis are balanced or not.
Ans. 
Check if a string with parenthesis is balanced
• Use a stack to keep track of opening parenthesis

• Iterate through the string and push opening parenthesis onto the stack

• When a closing parenthesis is encountered, pop from the stack and check if it matches the closing parenthesis

• If stack is empty at the end and all parenthesis are matched, return true
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Q1. Design an login/register authentication system.
Ans. 
Design a secure login/register authentication system.
• Use strong encryption algorithms like bcrypt for storing passwords.

• Implement multi-factor authentication for added security.

• Utilize HTTPS protocol to ensure data transmission is secure.

• Implement rate limiting to prevent brute force attacks.

• Use CAPTCHA to prevent automated account creation.

• Store user credentials in a secure database with proper access controls.
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Q1. Culture fit questions
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Q1. 3 rounds 1) DSA medium-level questions 2) low level design + implementation 3) Managerial round
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Q2. Cant share signed NDA
Ans. 
Unable to answer due to signed NDA
• I am unable to answer this question due to a signed NDA

• Unfortunately, I cannot disclose any information covered by the NDA

• Respecting the confidentiality agreement, I must refrain from sharing details
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Q1. Lot of SQL and python questions
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Q1. General discussion regarding work experience and projects.
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DSA questions of medium level.

Q1. System design and general knowledge of tech stack.
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Q1. Interests, hobbies and more.
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Test was conducted on Interviewbit 4 DSA questions, 10 MCQs

Q1. Past project discussions and DSA
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Q1. Culture fit kind of round
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Q1. Find duplicate in an array
Ans. 
Use a hash set to find duplicates in an array of strings.
• Create a hash set to store unique elements.

• Iterate through the array and check if the element is already in the hash set.

• If it is, then it is a duplicate. If not, add it to the hash set.
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Q2. Split a string without using any library
Ans. 
Split a string without using any library into an array of strings
• Iterate through the characters of the string and split based on a delimiter

• Use a loop to find the delimiter and create a new substring

• Store each substring in an array
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Q1. Tell me something about your self ?
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Q2. What are your strengths?
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Q3. Why are you interested in this job?
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