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Samsung Ads QA Engineer Interview Questions

The questions to prepare for a Samsung Ads QA Engineer interview. Questions from real interview reports rank first. Updated weekly.

35questions
~6htotal time
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1
CodingStart here. 7 questions · ~76 min
Reverse Linked List In-PlaceEasy
Practice

Reverse a singly linked list in place by rewiring next pointers in one pass.

Linked ListsAlgorithmsSamsung Ads
Maximum Subarray Using KadaneEasy
Practice

Compute the maximum contiguous subarray sum in O(n) time using Kadane's Algorithm.

Basic AlgorithmsDynamic ProgrammingArraysSamsung Ads
Two Sum ProblemEasy
Practice

Find two indices in an array whose values add up to a target using a hash map.

Hash TablesArraysTwo PointersSamsung Ads
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2
SQL & Data Manipulation4 questions + 2 drills · ~63 min
Second Highest Trader SalaryEasy
Practice

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingSamsung Ads
SQL Joins With ExamplesMedium

Tests understanding of SQL join semantics and ability to reason about result sets.

JoinsData ManipulationsqlSamsung Ads
SQL Deduplication QueryMedium

Tests SQL skills for identifying and removing duplicate records safely.

deduplicationData ManipulationsqlSamsung Ads
Average Vehicle Idle Time by ZoneHard
Practice
Practice drill

Use joins, a CTE, and aggregations to calculate average vehicle idle minutes in a specific geographic zone.

JoinsData ManipulationsqlWaymo
Rolling 30-Day Claim Totals SQLMedium
Practice
Practice drill

Use a date-based window function to calculate each active member's rolling 30-day paid claim total.

Window FunctionsData ManipulationsqlAetna
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3
Behavioral & Leadership22 questions · ~238 min
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4
More topics2 questions · ~22 min
Choose Agile vs WaterfallMedium

Explain Agile vs Waterfall and how to choose the right delivery model based on scope, risk, and planning needs.

Trade-offsSuccess CriteriaScope ManagementSamsung Ads
Tell Me About Your BackgroundEasy

Tests your ability to summarize relevant experience and connect it to the Research Scientist role at Chemours.

Trade-offsSuccess CriteriaScope ManagementSamsung Ads
The finish line: interview-readyComplete all 35 questions plus 2 hands-on drills to finish this plan.