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Top 50 Solutions Architect Interview Questions

The 50 most important questions to prepare for Solutions Architect interviews. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 25 questions · ~563 min
Find Two Sum IndicesEasy
Practice
Recently asked

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysSortingLLuxoft SingaporeNeoDoctoCCredible
Reverse a Linked ListEasy
Practice
Recently asked

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked Lists1PasswordAlcatel-Lucent MotiveBlend360
Design an LRU CacheEasy
Practice
Recently asked

Implement an LRU cache in O(1) average time using a hash table and doubly linked list.

Hash TablesQueueLinked ListsAllianzICFInsulet
Two Sum with TargetEasy
Practice
Recently asked

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsiCapitalPaycomBlend360
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2
SQL & Data Manipulation25 questions · ~563 min
SQL Top 3 Customers Per MonthMedium
Practice

Use monthly aggregation and ROW_NUMBER to identify PA Consulting's top three revenue-generating clients each month.

Window FunctionsRankingAggregationsPA ConsultingIDeaS - A SASNewWave Telecom & Technologies
Debug and Optimize Slow SQLMedium
Practice
Recently asked

Task A reporting query at a commerce platform summarizes recent orders for active customers, but the production version is slow. Write a PostgreSQL query t...

database optimizationlarge datasetsdatabase queryingCChildren's Cancer Research GroupSSISA Information SecurityHHDFC Standard Life Insurance
SQL Duplicate Records QueryEasy
Practice

Use GROUP BY and HAVING to identify duplicated Grail assay sample identifiers and their record counts.

Group ByHavingAggregationsTransUnionAcrisureGrail
7-Day Rolling Active UsersMedium
Practice
Recently asked

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsMetaSpotifyMeta IT
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