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Updated weekly · Last refresh Sep 22

A+E Group Solutions Architect Interview Questions

The questions to prepare for a A+E Group Solutions Architect interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 5 questions · ~63 min
Shortest Path in a GraphMedium
Practice

Find the minimum-cost path between two nodes in a weighted graph using Dijkstra's algorithm.

QueueSearchingGraphsA+E Group
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysA+E Group
Architectural Patterns ImplementedEasy

Tests your experience applying proven patterns and choosing them appropriately for business and technical needs.

Hash TablesArraysA+E Group
Synchronous vs AsynchronousEasy

Tests your understanding of concurrency models and their implications for responsiveness and throughput.

RecursionStackQueueA+E Group
Exception Handling in CodeEasy

Tests your approach to robustness, error propagation, and maintainable failure handling.

RecursionStackA+E Group
2
More topics3 questions · ~38 min
Design a Data ModelMedium

Tests your ability to model data for correctness, performance, and evolving requirements.

InfrastructureData ModelingQualityA+E Group
SQL vs NoSQL Trade-offsMedium

Tests your understanding of consistency, scalability, and workload fit for different data storage choices.

JoinsData WranglingAggregationsA+E Group
Optimize Database Query PerformanceMedium

Tests your ability to diagnose and improve SQL query performance using indexing, query plans, and execution strategies.

indexingJoinsAggregationsA+E Group

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Optimize a Slow SQL QueryHard
Practice
Practice drill

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData WranglingAmeripriseEEltro Cyberchrome PrivateEnergyHub
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
The finish line: interview-readyComplete all 8 questions plus 3 hands-on drills to finish this plan.