Manpower Belgium QA Engineer Interview Questions

Reverse an array in place using a two-pointer swap approach with O(1) extra space.

ArraysTwo Pointers

Second Highest Without AggregatesHard

First Non-Repeated CharacterEasy

Practice

Recently asked

Use a hash table frequency count and a second pass to return the first non-repeated character in a string.

Hash Tablesfrequency countStrings

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Selenium and ISTQB BasicsMedium

Recently asked

Assesses your practical automation mindset and alignment with ISTQB testing principles.

selenium

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More Coding questions with a free account

SQL & Data Manipulation4 questions + 2 drills · ~62 min

SubqueriesRankingSelf-Joins

Find the second highest salary in each department without using aggregate functions.

Placement Velocity SQL QueryMedium

Customer Orders: LEFT vs INNER JOINEasy

Recently asked

Explain how INNER JOIN and LEFT JOIN differ, and when to use each for matched-only versus all-left-row analysis.

JoinsData WranglingGroup By

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SQL Indexes and Query SpeedMedium

Recently asked

Tests understanding of SQL indexing and performance implications for QA data verification.

performanceReconciliationdata integrity

Manpower Belgium

Date FunctionsJoinsRanking

Practice drill

Write a SQL query to identify branches with the highest candidate placement velocity over the last quarter. Use the supplied branch and placement data. Tr...

Rank Branch Placements by MonthMedium

Date FunctionsRankingGroup By

Practice drill

Find branches exceeding the monthly candidate threshold and rank them by total placement transactions.