ADP Interview experience | Set 2 (On-Campus)
Question Details
Round 1 Written TestWritten test comprise of 4 sections.1. Aptitude2. Reasoning3. Programming MCQ4. Computer MCQ.Programming MCQ contained the output finding questions fr...
Full Details
Round 1 Written Test Written test comprise of 4 sections. 1. Aptitude 2. Reasoning 3. Programming MCQ 4. Computer MCQ. Programming MCQ contained the output finding questions from c, c++ and Java also and Computer MCQ contained question from OS, DBMS and computer language. Time limit was 45 minutes.
Round 2 Managerial In this round very common HR question were asked with introduction.
Round 3 Technical In this round questions were asked from C, OOPs, OS and DBMS. From C: Memory Management, differences among passing through variable, pointer and references, factorial of large number, differences between pointer and references. From OOP: Polymorphism and its use in real life, Overloading and Overriding and some of OOP real time implementations. From OS: Semaphore and its implementations and Deadlock. From DBMS: Join, Keys and design a schema for given tables.
Round 4 HR Asked some basic question like why ADP, what are expectations from this company, what is my passion etc.
About This Question
This is a reported interview question from a adp interview for a swe role during the phone screen round reported in 2018.
It covers the following topics: Sql, Os, Concurrency, System Design, Oop .
Difficulty rating: Easy
Topics
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About Adp Interview Reports
This question was reported by a candidate who interviewed at Adp. LeakCode aggregates interview reports from 10+ sources, including 1Point3Acres, Glassdoor, LeetCode Discuss, Blind, Reddit, Indeed, and Nowcoder. Each report is translated where necessary, deduplicated against existing entries, and tagged by company, role, round type, and reporting date.
Use this question as one calibration data point, not a memorization target. Companies typically rotate their question pools every 2-4 months; the exact wording of a 2024 question may differ from what you encounter today. The underlying pattern, difficulty level, and follow-up depth at Adp are the higher-signal extractions to take from this report.
For broader preparation context, the Adp interview process typically includes a recruiter screen, one or two technical phone screens, and a 4-5 round on-site loop covering coding, system design (at L4+ levels), and behavioral. Reports tagged on LeakCode show the round-by-round distribution and typical difficulty calibration. To browse questions filtered by round type and seniority, use the company hub linked above.
How To Practice This Type of Question
Solve similar problems on LeetCode under timed conditions (25-35 minutes per medium difficulty). The goal is pattern recognition: recognize the underlying technique (sliding window, two-pointer, BFS, memoized recursion, etc.) within 60-90 seconds of reading. Strong candidates verbalize their hypothesis out loud before coding, then iterate based on feedback. Weak candidates dive into implementation immediately, lose time on the wrong approach, and run out of time for follow-ups.
Companies update their question pools every 2-4 months. The exact wording of any given question may have been retired by the time you interview. Focus your prep on the pattern, not the specific problem. The patterns that appear in Adp reports consistently are the ones worth investing in; one-off niche problems are not.
During Your Adp Round
Apply the standard interview round template: clarify requirements (2-3 minutes), state your approach out loud and confirm direction with the interviewer (3-5 minutes), code with narration (15-25 minutes), test with concrete examples including edge cases (5 minutes), discuss optimization or trade-offs if time permits (5 minutes). This template is universally accepted across FAANG and adjacent companies; deviating from it produces weaker interviewer feedback signal.
The single most predictive failure mode in Adp reports tagged "no hire": not asking clarifying questions. Interviewers are explicitly trained to weight this. Strong candidates ask 3-5 clarifying questions even on problems that look obvious; weak candidates dive into code immediately. The clarifying-question check is often the first signal recorded in the interviewer's written notes.