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Atna Technologies Senior Software Engineer Interview Questions and Answers
Atna Technologies Senior Software Engineer Interview Experiences
1 interview found
Anonymous
Selected
I applied via Referral and was interviewed before Jul 2023. There were 3 interview rounds.
Standard programming question test on a platform.
(2 Questions)
- Q1. Django request response cycle
- Q2. DSA coding question
(1 Question)
- Q1. System Design Round
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I applied via Naukri.com and was interviewed in Jun 2024. There was 1 interview round.
The coding test was divided in 4 sections:
1> Java and SpringBoot multiple choice questions
The question topics included, multihreading, springboot context, security
2> Leetcode style program question 1 - Easy
3> Leetcode style program question 2 - Medium
Length of longest consecutive ones by at most one swap.
4> Sql query question
I applied via Referral and was interviewed in Nov 2023. There were 6 interview rounds.
Duration: 1Hour 30 Minutes, 2 Coding Questions of Total 175 Marks. 1st Question has 75 marks and 2nd Question has 100 marks.
(2 Questions)
- Q1. 1. Find the smallestMissingNumber in given array using Bitwise OR operation alone 2. Based on Array data Manipulation.
- Ans.
Using Bitwise OR operation to find the smallest missing number in an array.
Iterate through the array and perform Bitwise OR operation with each element to set corresponding bit in a bitmask
Iterate through the bitmask to find the first unset bit, which represents the smallest missing number
Example: Array [0, 1, 3, 4, 6] would have a bitmask of 10101, smallest missing number is 2
- Q2. Q2: Customized Data Extraction From Given Dynamic Array & Perform Some Math Operations On the Extracted Data
(1 Question)
- Q1. Write a Pseudo code for given scenario?
- Ans.
Pseudo code for a scenario
Define variables and data structures needed
Write the main logic using conditional statements and loops
Handle edge cases and error conditions
Test the pseudo code with sample inputs
(1 Question)
- Q1. System Design & Design Pattern based questions
(1 Question)
- Q1. Not Applicable (Yet to be scheduled)
Skills evaluated in this interview
(1 Question)
- Q1. Design a Url Shortener serive
- Ans.
A URL shortener service that converts long URLs into shorter, more manageable links.
Generate a unique short code for each long URL
Store the mapping between short code and long URL in a database
Redirect users from short URL to original long URL when accessed
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in May 2024. There were 2 interview rounds.
Online coding test had two questions to be solved in 60 mins. Medium level questions to be expected.
(1 Question)
- Q1. Codility test: Moderate level machine coding round, not leetcode type. Deep understanding of interface and backend knowledge required. Interviewer was absolutely uninterested.
I applied via Approached by Company and was interviewed in Jan 2024. There were 4 interview rounds.
LeetCode style DS Algo Questions
(1 Question)
- Q1. Low Level Design
(1 Question)
- Q1. High Level Design
(1 Question)
- Q1. Normal Behavioural Questions
3 questions, 2 dsa and 1 sql query
4 Rounds:
Online Assesment, Leetcode medium type questions
Application Design: Write solution with Design patterns
LLD
HLD
Interview Preparation Tips
I applied via Referral and was interviewed in Feb 2020. There were 6 interview rounds.
Interview Questionnaire
1 Question
- Q1. I am not allowed to reveal
Interview Preparation Tips
Some tips for software engineer interview
1. Please prepare to do competitive programming like use leetcode algoexpert hacker rank
2. Some of the important areas are string problems dynamic programming stack based and tree based
3. There can be design round and interesting questions may be encountered
Interview Questionnaire
8 Questions
- Q1. Implement queue with the help of two stacks
- Ans.
Queue can be implemented using two stacks by maintaining the order of elements in the stacks.
Create two stacks, let's call them stack1 and stack2
When an element is enqueued, push it to stack1
When an element is dequeued, pop all elements from stack1 and push them to stack2
Pop the top element from stack2 and return it as the dequeued element
If stack2 is empty, repeat step 3
To get the front element of the queue, peek the
- Q2. Iven a table “student” of with columns Name and Marks. You have to write a SQL query to get the 2nd highest marks from the table. Also write a query to find the nth highest marks, where n can be any number
- Q3. What is left join. Give example. And Full outer join?
- Ans.
Left join returns all records from left table and matching records from right table. Full outer join returns all records from both tables.
Left join is used to combine two tables based on a common column.
In left join, all records from the left table are returned along with matching records from the right table.
If there is no match in the right table, NULL values are returned.
Example: SELECT * FROM table1 LEFT JOIN table...
- Q4. What is magic functions and autoloading in PHP?
- Ans.
Magic functions are special methods in PHP that start with __. Autoloading is a way to automatically load classes.
Magic functions are used to handle certain events in PHP, such as object creation or property access.
Autoloading allows PHP to automatically load classes when they are needed, without requiring manual includes.
Magic functions can be used in conjunction with autoloading to dynamically load classes or handle
- Q5. Given three arrays sorted in non-decreasing order, print all common elements in these arrays. Examples: ar1[] = {1, 5, 10, 20, 40, 80} ar2[] = {6, 7, 20, 80, 100} ar3[] = {3, 4, 15, 20, 30, 70, 80, 120} Ou...
- Ans.
Given three sorted arrays, find common elements.
Create three pointers to traverse each array
Compare the elements at the pointers and move the pointer of the smallest element
If all pointers point to the same element, add it to the result and move all pointers
Repeat until any pointer reaches the end of its array
- Q6. A puzzle. You will be given with a 3 Litre container & a 7 Litre Container. Measure exactly 5 Litres of water
- Q7. Asked about one of my projects I mentioned in my resume?
- Q8. Find if a number is a power of 2 or not?
- Ans.
Check if a number is a power of 2 or not.
A power of 2 has only one bit set in its binary representation.
Use bitwise AND operator to check if the number is a power of 2.
If n is a power of 2, then n & (n-1) will be 0.
Interview Preparation Tips
College Name: na
Motivation: Overall it was a very good experience. They test you from every aspect. In the End I would like to say that Practo is one of the best companies to work for.
Skills evaluated in this interview
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Atna Technologies Senior Software Engineer Interview Process
based on 1 interview
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Atna Technologies Senior Software Engineer Reviews and Ratings
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