Happiest Minds Technologies Interview Questions, Process, and Tips

Q1. Difference between data lake and mesh?
Ans. 
Data lake is a centralized repository for storing structured and unstructured data, while mesh is a network of interconnected services.
• Data lake stores raw data in its native format, while mesh connects various services and applications.

• Data lake is used for data storage and analytics, while mesh is used for communication and integration.

• Examples of data lake technologies include Amazon S3 and Hadoop, while examples of
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Q1. Expected salary
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Good and moderate level

Q1. Regarding technical
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Q2. Your technical skills
Ans. 
I have strong technical skills in IMS engineering, including experience with VoLTE, VoWiFi, and RCS.
• Experience with VoLTE (Voice over LTE) technology

• Knowledge of VoWiFi (Voice over WiFi) implementation

• Familiarity with RCS (Rich Communication Services) standards

• Proficiency in troubleshooting IMS network issues

• Ability to work with SIP (Session Initiation Protocol) and Diameter protocols
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Q1. Describe yourself
Ans. 
I am a dedicated IMS Engineer with a passion for problem-solving and a strong attention to detail.
• Experienced in designing, implementing, and maintaining IMS networks

• Skilled in troubleshooting network issues and optimizing network performance

• Strong knowledge of VoLTE, VoWiFi, and RCS technologies

• Excellent communication and teamwork skills

• Certified in relevant networking technologies such as CCNA or CCNP
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Q2. Technical skills
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Q1. Able to work in Bangalore and work from office
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Q2. Flexible to work in shifts
Ans. 
Yes, I am flexible to work in shifts and have prior experience doing so.
• I have previous experience working in shifts at my previous job.

• I am willing to adjust my schedule to accommodate different shifts.

• I understand the importance of being flexible in a dynamic work environment.
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Q1. Questions on Snowflake Stages, copy command, Warehouses, roles Questions on sql
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Q1. Managerial round
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Q2. Questions based on past project work
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Q1. Questions based on architectural discussion How tables will be designed based on the given scenario
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Q1. Basic Python programming questions, SQL queries and Spark fundamentals.
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Q1. Questions on the current project architecture and some counter questions based on your answer.
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Q1. Why you want to join our organization
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Easy numerics, logical, coding, technical

Q1. Reverse a array
Ans. 
Reverse an array of integers in place
• Create two pointers, one at the start and one at the end of the array

• Swap the elements at the two pointers and move them towards the center until they meet

• Time complexity: O(n), Space complexity: O(1)
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Q2. Create a list of duplicates in array
Ans. 
Function to find duplicates in an array of integers and return a list of unique duplicates.
• Iterate through the array and keep track of elements seen before using a hash set.

• If an element is already in the hash set, add it to the result list.

• Return the list of unique duplicates found.
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General aptitude test which contains logical thinking, reasoning questions

Q1. Based on resume and skills
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