Yext ETL Developer Interview Questions and Answers

Q1. Questions on Oops concepts
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Q2. Questions on design patterns
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Q1. Tell me about yourself
Ans. 
Experienced SQL Database Administrator with a strong background in managing databases and optimizing performance.
• Over 5 years of experience in SQL database administration

• Proficient in database design, implementation, and maintenance

• Skilled in performance tuning and troubleshooting

• Familiar with backup and recovery processes

• Certified in SQL Server administration
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Database Architecture, Cloud Architechture

Q1. Round with senior manager
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Q1. System design Shortner URL
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1 hour , dsa, hackerearth, medim to hard

Q1. Dsa question was asked in it
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Q2. Questions related to resume was asked
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Q1. Diff var let const
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diff var let const
• var is function-scoped, let and const are block-scoped

• var can be redeclared and reassigned, let can be reassigned but not redeclared, const cannot be reassigned or redeclared

• const must be initialized during declaration, let and var can be declared without initialization
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Q1. Related to node js architecture
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Q1. Expectation and all
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It went well. Easy questions were asked

We have to first explain how we are planning to solve the problem and can start coding

Q1. Multi threading
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Q2. Algorithms in data structures
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Algorithms in data structures are essential for efficient data manipulation and retrieval.
• Algorithms in data structures help in organizing and managing data effectively.

• Examples include sorting algorithms like quicksort and searching algorithms like binary search.

• Understanding algorithms in data structures is crucial for optimizing performance in software development.
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Q1. Internal working of Hashmap
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HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• To retrieve a value, the key is hashed a...read more
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Q2. Memory management in java
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Java uses automatic memory management through garbage collection to allocate and deallocate memory.
• Java uses garbage collection to automatically manage memory allocation and deallocation.

• Garbage collection runs in the background to reclaim memory from objects that are no longer in use.

• Java provides the 'finalize()' method to allow objects to perform cleanup before being garbage collected.
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Q1. Core java basic details
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Q2. Everything related to basic core java
Ans. Learn deeply into basic core java concepts
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