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DevOps Engineer Interview Preparation

DevOps and Site Reliability Engineering interview prep covering infrastructure, automation, and monitoring.

Key Skills & Technologies

Infrastructure as Code
CI/CD
Containerization
Monitoring
Cloud Platforms
Automation

Interview Focus Areas

Infrastructure as Code (Terraform, CloudFormation)
CI/CD pipeline design and implementation
Containerization and orchestration (Docker, Kubernetes)
Monitoring and observability
Cloud platform expertise (AWS, GCP, Azure)
Automation and scripting

Top Hiring Companies

AmazonGoogleMicrosoftNetflixUber

Top DevOps Engineer Coding Questions

Practice these 20 most relevant coding problems for devops engineer interviews.

#1EasyFrequency: 100%

Two Sum

Asked at Google
Hash TableArray
#1
Recommended
#146MediumFrequency: 100%

LRU Cache

Asked at Apple
Hash TableDesignLinked ListDoubly-Linked List
#2
Recommended
#833HardFrequency: 100%

Bus Routes

Asked at Uber
Hash TableArrayBreadth-First Search
#3
Recommended
#716HardFrequency: 100%

Max Stack

Asked at LinkedIn
DesignLinked ListStackDoubly-Linked ListOrdered Set
#4
Recommended
#68HardFrequency: 100%

Text Justification

Asked at Airbnb
SimulationArrayString
#5
Recommended
#750HardFrequency: 100%

Contain Virus

Asked at Flipkart
SimulationArrayDepth-First SearchBreadth-First SearchMatrix
#6
Recommended
#362MediumFrequency: 100%

Design Hit Counter

Asked at Databricks
DesignArrayBinary SearchQueueData Stream
#7
Recommended
#432HardFrequency: 93.8%

All O`one Data Structure

Asked at LinkedIn
Hash TableDesignLinked ListDoubly-Linked List
#8
Recommended
#348MediumFrequency: 93.6%

Design Tic-Tac-Toe

Asked at Databricks
Hash TableDesignSimulationArrayMatrix
#9
Recommended
#314MediumFrequency: 93.4%

Binary Tree Vertical Order Traversal

Asked at Meta
Hash TableTreeDepth-First SearchBreadth-First SearchSortingBinary Tree
#10
Recommended
#3MediumFrequency: 92.8%

Longest Substring Without Repeating Characters

Asked at Infosys
Hash TableStringSliding Window
#11
Recommended
#305HardFrequency: 89.9%

Number of Islands II

Asked at Uber
Hash TableArrayUnion-Find
#12
Recommended
#1790MediumFrequency: 88.5%

Lowest Common Ancestor of a Binary Tree III

Asked at Meta
Hash TableTwo PointersTreeBinary TreeBinary LiftingLowest Common Ancestor
#13
Recommended
#560MediumFrequency: 87.2%

Subarray Sum Equals K

Asked at Meta
Hash TableArrayPrefix Sum
#14
Recommended
#694MediumFrequency: 86.6%

Number of Distinct Islands

Asked at TikTok
Hash TableArrayDepth-First SearchBreadth-First SearchUnion-FindSortingMatrixHash Function
#15
Recommended
#251MediumFrequency: 85.6%

Flatten 2D Vector

Asked at Airbnb
DesignArrayTwo PointersIterator
#16
Recommended
#438MediumFrequency: 84.4%

Find All Anagrams in a String

Asked at Databricks
Hash TableStringSliding Window
#17
Recommended
#1366MediumFrequency: 83.2%

First Unique Number

Asked at Uber
Hash TableDesignArrayQueueData Stream
#18
Recommended
#1112EasyFrequency: 82.7%

Find Words That Can Be Formed by Characters

Asked at PayPal
Hash TableArrayStringCounting
#19
Recommended
#1190MediumFrequency: 82.4%

Smallest Common Region

Asked at Airbnb
Hash TableArrayStringTreeDepth-First SearchBreadth-First SearchBinary LiftingLowest Common Ancestor
#20
Recommended

All Interview Questions

Browse questions by company and difficulty level

Topics & Algorithms

Practice by specific algorithm and data structure topics

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