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Exam Prep Guide

Persistent Systems Prep Guide 2025

Crack Persistent Systems' PESSAT — aptitude, technical, and coding rounds with a 3-week preparation plan.

50+
Total Questions
115 min
Duration
5–8 LPA
Package
Moderate–High
Difficulty

Why Persistent Systems?

Persistent Systems is a mid-size IT company known for strong engineering culture and better compensation than traditional IT service firms (TCS, Wipro). They focus on software product engineering and work with ISVs (Independent Software Vendors) globally. Freshers get real product development exposure early in their careers.

Persistent Systems Hiring Process

1

Aptitude (PESSAT)

25 Qs30 min
Percentages & RatiosTime & WorkProbabilityData InterpretationAverages

Tip: Persistent aptitude is slightly harder than TCS/Wipro. DI and Probability questions need focused practice.

2

Technical MCQs

25 Qs25 min
OOP conceptsData Structures (Arrays, Trees)Algorithms (sorting, recursion)OS & DBMS basicsProgramming language output Qs

Tip: C and Java output questions are very common. Practice pointer-based C questions and Java OOP outputs daily.

3

Coding Round

2 Qs60 min
Array manipulationString algorithmsNumber theoryTree traversalsMatrix problems

Tip: Persistent expects complete, working solutions. Test with 3–4 edge cases before submitting. Python is easiest — use it if you're comfortable.

4

Technical + HR Interview

Open-ended Qs45–60 min
Live coding (easier than OA)CS fundamentals deep-diveProject discussionWhy Persistent Systems?

Tip: Persistent values both technical depth and communication. Walk through your code clearly and explain the algorithm before writing.

3-Week Study Plan

Week 1

Aptitude + OOP

25 aptitude Qs/day (focus on DI, Probability), OOP MCQs in Java/Python (15/day)

Week 2

DS + Algorithms

Arrays, Trees, Sorting — 3 problems/day; trace recursive code daily

Week 3

Coding + Mock Tests

2 PESSAT-style coding problems/day, 2 full mock tests, interview prep

Practice for Persistent on TomoLink

Aptitude, coding, and technical MCQs modeled on Persistent Systems' PESSAT — free on TomoLink.

Start Practicing

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