What data structures must I know for coding interviews?

Master these 8 data structures: arrays, hash maps, linked lists, stacks, queues, trees (binary/BST), graphs, and heaps. According to LeetCode analysis, hash maps and arrays appear in 70%+ of coding problems. Also understand trade-offs between them for different use cases.

How do I improve my algorithm solving speed?

Focus on pattern recognition over memorization. There are approximately 15-20 algorithm patterns that cover 90% of interview problems. Practice identifying patterns in the first 2 minutes of reading a problem. Use AissenceAI real-time hints to build intuition during practice.

What is the most tested algorithm in coding interviews?

Binary search and its variations are the most frequently tested, appearing in approximately 25% of coding interviews. BFS/DFS (20%), two pointers (18%), dynamic programming (15%), and sliding window (12%) round out the top 5.

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25 Cloud Engineer Interview Questions (AWS, Azure, GCP)

March 1, 2026

Technical Tips5 min read

25 Cloud Engineer Interview Questions (AWS, Azure, GCP)

Cloud Engineer Interview Questions: AWS, Azure, and GCP

Cloud engineering roles have grown 35% year-over-year since 2023. Interviews test cloud architecture design, infrastructure as code, networking, security, and cost optimization. AWS certifications (Solutions Architect, DevOps Engineer) are the most requested credentials.

Cloud interviews always include a design question: "Design a highly available, scalable web application on AWS/Azure/GCP." You must discuss VPC design, auto-scaling, load balancing, RDS vs DynamoDB, caching, CDN, and monitoring.