Persistent Systems Limited interview experience Real time questions & tips from candidates to crack your interview

Software Engineer

Persistent Systems Limited
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3 rounds | 5 Coding problems

Interview preparation journey

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Preparation
Duration: 4 months
Topics: Software Development Life cycle, OOPS, DBMS, OS, Data Structures
Tip
Tip

Tip 1 : Have your basics cleared in full depth
Tip 2 : Practice good data structures and Algo questions
Tip 3 : Have good knowledge about the technology used in your Projects

Application process
Where: Campus
Eligibility: Above 6.5 CGPA
Resume Tip
Resume tip

Tip 1 : Never lie in your resume 
Tip 2 : Preferablly have a one page resume (if not then at max to pages)
Tip 3 : Try to make company specific resume.

Interview rounds

01
Round
Easy
Online Coding Interview
Duration90 Minutes
Interview date7 Oct 2020
Coding problem1

It was in the morning
It was an online proctored exam

1. Subarray With Given Sum

Moderate
15m average time
85% success
0/80
Asked in companies
Thought WorksAdobeInfo Edge India (Naukri.com)

Given an array ARR of N integers and an integer S. The task is to find whether there exists a subarray(positive length) of the given array such that the sum of elements of the subarray equals to S or not. If any subarray is found, return the start and end index (0 based index) of the subarray. Otherwise, consider both the START and END indexes as -1.

Note:

If two or more such subarrays exist, return any subarray.

For Example: If the given array is [1,2,3,4] and the value of S is equal to 7. Then there are two possible subarrays having sums equal to S are [1,2,3] and [3,4].

Try solving now
02
Round
Medium
Video Call
Duration35 Minutes
Interview date15 Oct 2020
Coding problem3

It was in the afternoon around 2 pm.

1. OS Questions

Explain Thrashing .
Explain segmentation
State deadlock detection and prevention methods.
Explain dinning philosopher problem
Explain page fault with example.

2. DBMS Questions

Write a query from an employee table to find the salaries of the employees having even emp -id number 
Explain 2,3- tier architecture and explain vies in DBMS.
Explain serialization
Explain ACID properties
Define primary keys and foreign key
State all the joins

3. Resume related questions

The interviewer discussed about my final year project about the technologies used ,which papers i have referred whats my role in the project and the scope of the project in current market.

03
Round
Easy
HR Round
Duration20 Minutes
Interview date22 Oct 2020
Coding problem1

It was in the afternoon at 12.30 pm

1. Basic HR Questions

Describe who you are? or Tell me about your background. 

What are your strengths and weaknesses?

Problem approach

Tip 1 : Be confident about yourself
Tip 2 : Prepare the famous questions beforehand like(tell me about yourself , your strength and weakness , where do you see yourself in 5 years etc.)
 

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

What is recursion?

Choose another skill to practice
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