Kuliza Technologies Software Engineer Interview Questions and Answers

Q1. OOPs related questions.
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Q2. Joins, Indexes and some problems to write sql queries.
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Q1. Pointless basic questions is what they asked
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Q1. They had this round for hours together
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60 Minutes coding test was there

Q1. Worst experience ever, never apply for company in this, highly unstable company
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Q2. Add two numbers in a linked list, don't apply
Ans. 
Traverse the linked list and add the values of each node without using additional data structures.
• Traverse the linked list while keeping track of the sum in a variable

• Update the sum by adding the value of each node as you traverse the list

• Handle carry over if the sum of two nodes is greater than 9
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Q3. Sort the array by using all sorting algorithms, don't join
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Q4. Subset problem find all the subsets
Ans. 
To find all subsets of a given set, use recursion to generate all possible combinations.
• Use recursion to generate all possible combinations of including or excluding each element in the set.

• Start with an empty subset and recursively add each element to create new subsets.

• Each subset can be represented as an array of strings.
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Q5. LRU Cache problem, explain it and implement it
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LRU Cache is a data structure that stores a fixed number of items and removes the least recently used item when the cache is full.
• LRU Cache uses a combination of a doubly linked list and a hashmap to efficiently store and retrieve items.

• When an item is accessed, it is moved to the front of the linked list to indicate it is the most recently used item.

• If the cache is full, the least recently used item at the end of the ...read more
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Q1. 2 rounds, 2 coding questions in each round. Managerial round.
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Q1. Resume overview and work experience discussion
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Q2. Asked for expected salary
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Manager and employee problem. Given a table with id, Employee, managerId. Print the hierarchy in a tree format.

Q1. What is ACID Prop?
Ans. 
ACID Prop stands for Atomicity, Consistency, Isolation, Durability properties in database transactions.
• Atomicity ensures that all operations in a transaction are completed successfully or none at all.

• Consistency ensures that the database remains in a consistent state before and after the transaction.

• Isolation ensures that multiple transactions can be executed concurrently without affecting each other.

• Durability ensures...read more
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Q2. WHAT IS ER Dia?
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ER Dia stands for Entity-Relationship Diagram, a visual representation of entities and their relationships in a database.
• ER Dia is used to design databases by showing the entities (such as customers, products, orders) and the relationships between them.

• Entities are represented as rectangles, relationships as diamonds, and attributes as ovals.

• For example, in a library database, you may have entities like 'Book', 'Author...read more
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Q1. Basic Python Programming question with list, regex, strings
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