Dataford
Top 3
Prep plan
Updated weekly · Last refresh Nov 12
D

Digii Software Engineer Interview Questions

The questions to prepare for a Digii Software Engineer interview. Questions from real interview reports rank first. Updated daily.

3questions
~1htotal time
Track your progressSign up free to work through all 3 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 1 question · ~14 min
Return Duplicates by Second OccurrenceEasy
Practice

Return duplicate array values once each, preserving their first duplicate occurrence order.

deduplicationBasic AlgorithmsArraysDDigii
2
Technical Fundamentals1 question · ~14 min
Explain the Four Core OOP PrinciplesMedium

Tests whether a candidate can explain encapsulation, inheritance, polymorphism, and abstraction, then apply them in real project code.

software designLanguage Featurestechnical fundamentalsDDigii

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
SQL & Data Manipulation1 question + 3 drills · ~44 min
Understanding Primary Keys in DatabasesEasy

Explain the concept of a primary key and its importance in database design.

DDigii
SQL Duplicate Record CleanupMedium
Practice
Practice drill

Identify duplicate transaction rows, retain the earliest record, and delete later duplicates safely.

deduplicationdata cleaningtransactionsOracleAmexBrooksource
SQL Duplicate Record DetectionEasy
Practice
Practice drill

Find duplicate American Institutes for Research assessment submissions using a CTE, GROUP BY, HAVING, and joins.

deduplicationsqldata integrityAmerican Institutes for ResearchPublix Super MarketsMacy's
Max Number from a ListEasy
Practice
Practice drill

Return the maximum number from a list using a simple SQL aggregate.

Basic Algorithmsdatabase queryingpythonTiger Analytics
The finish line: interview-readyComplete all 3 questions plus 3 hands-on drills to finish this plan.