Acliv Technologies Interview Questions and Answers

Q1. All about core java
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Q2. Front end and My Sql
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Q1. What is oops in python
Ans. 
Object-oriented programming (OOP) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOP allows for organizing code into reusable components called classes.

• In Python, classes are defined using the 'class' keyword.

• Classes can have attributes (variables) and methods (functions).

• Inheritance allows classes to inherit attributes and methods from other classes.

• Polymorphism allows objec...read more
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Q2. What is ternary operant in python
Ans. 
Ternary operator in Python is a conditional expression that evaluates to a value based on a condition.
• Ternary operator is written as 'value_if_true if condition else value_if_false'

• It is a shorthand way of writing an if-else statement in a single line

• Example: x = 10 if a > b else 20
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1st test was aptitude and a easy coding test

The 2nd test was pure coding based test on hacker rank platform and contains 2 easy and 2 medium question

Q1. Round 3 was technical interview and asked from basics of computer programming and architecture
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Q1. What is your family background?
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Q2. Why are you looking for a change?
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Q3. What are your strengths and weaknesses?
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Q4. Tell me about yourself.
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Round duration - 60 minutes
Round difficulty - Easy

Technical interview round with questions on DSA and DBMS mainly.

Q1. 
Maximum Sum Subarray Problem Statement
Given an array ARR consisting of N integers, determine the sum of the subarray with the maximum sum, including the possibility of an empty subarray.
A subarray is a...read more
Ans. 
Find the sum of the subarray with the maximum sum in a given array.
• Iterate through the array and keep track of the current sum and maximum sum.

• Update the maximum sum if the current sum becomes greater.

• Handle cases where the array has all negative numbers or empty subarray.

• Example: For input [-2, 1, -3, 4, -1], the maximum sum subarray is [4] with sum 4.
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Q2. 
Prime Numbers Identification
Given a positive integer N, your task is to identify all prime numbers less than or equal to N.
Explanation:
A prime number is a natural number greater than 1 that has no po...read more
Ans. 
Identify all prime numbers less than or equal to a given positive integer N.
• Iterate from 2 to N and check if each number is prime

• Use the Sieve of Eratosthenes algorithm for efficient prime number identification

• Optimize by only checking numbers up to square root of N for divisibility
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Q3. What are Joins in the context of databases?
Ans. 
Joins in databases are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right ta...read more
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Round duration - 30 minutes
Round difficulty - Easy

Typical HR round with behavioral problems.

Hackerrank Test

Q1. Questions related to NodeJS and Javascript Basics
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Q1. Technical questions based on past experience
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Q1. Company Culture related
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Q1. Expectations and Processes
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