Nvidia Interview Questions
Practice the exact questions companies are asking right now.
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Return all file paths via DFS
You are given an in-memory representation of a file system as a tree. Each node has: - name (string) - isFile (boolean) - children (list of nodes, emp...
Implement a disk space manager with eviction
Design and implement an in-memory disk space manager that stores datasets by datasetId with a given size (e.g., in MB). The manager has a fixed total ...
Explain container image flow in CI/CD
Scenario Walk through what happens in a typical CI/CD pipeline that builds and deploys a containerized service. Questions 1. During CI, how is a conta...
Explain virtual machines and concurrency basics
Topics Answer at a senior-engineer depth. Use diagrams or step-by-step reasoning as needed. 1) Virtual machines (VMs) - What is a VM and what problem ...
Solve small string and API tasks
You are given three small programming tasks (typical “easy” difficulty). Implement each as a function. Task 1: Validate parentheses Given a string s c...
Design and implement an LRU cache
Problem Design and implement an LRU (Least Recently Used) Cache that supports the following operations in O(1) average time: - get(key) → returns the ...
Implement encode/decode for list of strings
You are given a list of strings (may include digits and symbols). Implement two methods: - encode(List<String> input) -> String: converts the list int...
Explain bias-variance, calibration, and model drift
You are interviewing for an applied ML role. Answer the following ML fundamentals questions in a business-facing way (i.e., start from a customer/busi...
Design first-time Kubernetes deployment in new cloud
Scenario You need to stand up a new compute cluster on a new cloud account/subscription (greenfield). The team wants a simplified, practical plan for ...
Introduce yourself for a senior role
Prompt You’re interviewing for a senior engineering role. 1. Give a concise self-introduction (2–3 minutes). 2. Highlight 1–2 impactful projects, your...
Design a bidirectional data sync dashboard
Design a bidirectional data synchronization platform and an internal dashboard. Scenario Your company integrates with multiple cloud providers (e.g., ...
Implement short algorithms on logs, grids, and strings
You are given several independent short coding tasks. For each task, implement the requested function(s). Assume standard library data structures are ...
Implement polynomial multiplication API in C
Problem Implement an API in C to multiply two polynomials. A polynomial is represented by its coefficients. You must define the input and output forma...
How would you optimize large-scale training/inference?
You’re discussing your experience with large-scale model training and inference on GPUs. The interviewer wants you to proactively cover optimization t...
Solve anagram grouping and in-place allocator
You are asked to solve two coding tasks. 1) Group anagrams Given an array of strings strs, group the strings that are anagrams of each other. - Two st...
Find the nth prime number
Given an integer n (1-indexed), return the n-th prime number (e.g., n=1 -> 2, n=2 -> 3, n=3 -> 5). Design an algorithm that is efficient for moderatel...
Design a URL shortening service
Design a URL shortening service similar to TinyURL. Requirements Functional - Create a short URL for a given long URL. - Redirect: given a short code,...
Explain Amdahl’s law and GPU matmul optimization
Answer the following systems/performance fundamentals questions (as in a GPU/ML infra interview). Assume a modern NVIDIA-like GPU architecture unless ...
Compute top-N items from log stream
Problem You are given application logs containing events with an itemId. Each log line may contain extra fields, but you can extract the itemId from e...
Derive MLP shapes and explain PyTorch broadcasting
You are given a standard MLP layer (fully connected layer) used in deep learning. 1. Write the forward computation for a linear layer with bias. 2. Gi...