Cogniscient Business Solutions Associate Software Engineer Interview Questions and Answers

In the coding test, there were 2 problems based on arrays and hashing (easy to medium level leetcode)

Q1. Several OOP questions were asked.... like, Can we have a class inside an interface? Can we have a static constructor? Can we have multiple main methods?
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Q2. DBMS question: Normalization questions and keys concepts.
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Q1. DSA question (stack based) You have a stack full of numbers, you have to arrange them in ascending order in the same stack without using any other data structure.
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Q2. OS and DBMS questions(sharding, semaphores, etc.)
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Q1. Questions based on Consultadd principles.
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Basic pattern question

Moderate level related to array and string

Difficult questions pattern string array tree

Q1. Basic introduction salary expectation
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2 coding questions medium to hard level

Q1. Doubly Linkeded List
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Q2. How to find if the Singly Linked List is cyclic or not in optimal way
Ans. 
Use Floyd's cycle detection algorithm to find if a Singly Linked List is cyclic or not.
• Use two pointers, slow and fast, where slow moves one step at a time and fast moves two steps at a time.

• If there is a cycle, the two pointers will eventually meet at some point.

• If the fast pointer reaches the end of the list (null), then there is no cycle.
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Q3. DBMS Normalisation
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Q1. Questions based on Objects and Classes Basic Questions related to DSA Projects discussions- Your Roles and Tasks Scenario based Questions Few Reasoning Questions
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Q1. Questions related to Trees and Graphs nested SQL Queries Scenario Based Questions Projects Logics for the coding given
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Q1. Just basic HR Questions Reallocation
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