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Apple面试真题

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1.Dense Rank vs Rank
2.SQL join中的where和on的区别
3.抛硬币的概率计算
4.ios12和ios13开机时间测试
5.Center计算
6.How to define KPIs for an App
7.How to define the relevane of search results
8.Project experience
9.Text Classification模型
10.DAU计算
11.Launch or not
12.AB Test如何检测robustness和sensitivity
13.LTV计算
14.计算字母数
15.full join考察
16.design&appearance
17.geekout&mastery
18.decision making
19.future expectations
20.Challenging for some reasons
21.Do something differently
22.The most proud project
23.What have you learned lately
24.keep up to date
25.time distribution
26.Introduce yourself
27.Merge Two Sorted Lists
28.Wildcard Matching
29.SQL基础
30.SQL基础
31.Candy Crush
32.中位数
33.Word Ladder
34.日期间隔计算
35.Count of Smaller Numbers After Self
36.leetcode694
37.Number of Islands
38.Split Linked List in Parts
39.Spiral Matrix
40.Merge k Sorted Lists
41.Max Version
42.Subarray Sum Equals K
43.Integer to English Words
44.设计一个list
45.设计一个数据结构
46.Measure steps with Apple watch
47.List operation
48.What happens when you swipe your credit card?
49.left join where可不可以用inner join代替
50.Commit fraud
51.apple wallet vulnerability
52.payment fraud mitigation solution
53.Basic SQL questions
54.Why power increases when amount of data decreases
55.Caan we launch feature in those countries which are statistically significant
56.Can we stop the experiment when p-value becomes statistical significant before the experiment ends
57.Factors of experiment running time
58.What will p-value change when samples changed
59.Compare proportion of two population
60.Output results based on some requirements
61.How to evaluate new features
62.Evaluate the change of students' scores after a program
63.How to shorten confidence interval
64.Generating All Full Binary Trees with N Nodes
65.Word Search II on a Board
66.Length of strings
67.Union
68."Flood Fill Algorithm"
69."Pattern Matching with Insertions"
70.Palindrome Number Check
71.Counting Primes Less Than N
72.Sudoku_Solver
73.Text Justification Algorithm
74.What is a noise figure and how is it relevant to RF engineering?
75.Explain the concept of SNR (Signal-to-Noise Ratio) and how to calculate it.
76.How do you operate test equipment such as a spectrum analyzer?
77.Describe how you use Python for automation in your daily work.
78.Multi-threaded Summation of Segments
79.Find Top-K Page Views
80.Design Amazon Shopping Cart
81.Design an LRU Cache
82.Swap two variables without using a third variable
83.Print elements from the array alternatively
84.Implement the k-means clustering algorithm
85.Write a regular expression and convert bytes to string without looking up resources
86.Red Infrared Detectors and Diamond Theft Problem
87.Binary Search for Signal Frequencies
88.K-Means Clustering Algorithm
89.Structure and Principle of Attention Layer in Transformers
90.Limitations of Fine-Tuning in Machine Learning
91.Improving and Evaluating a Retriever Model
92.Optimal Solution for Linear Regression
93.Introduction to Ensemble Models with XGBoost
94.Applicability of CNN for Anomaly Detection
95.Anomaly Detection in Signal Data
96.Explain the roles of regularization and normalization in machine learning.
97.Valid Signal in Timing Path
98.Timing Path Analysis
99.Congestion Resolution in Physical Design
100.Static Timing Analysis (STA) Concepts
101.Logic Synthesis Optimization Methods
102.Temperature-Dependent Timing Violation
103.Asynchronous vs Synchronous Reset
104.Finite State Machine (FSM) Design
105.Binary to Gray Code Conversion
106.MUX-based Logic Gates
107.Logic Gate Representation
108.Design an LLM RAG Based System
109.Design an ML Training Platform
110.Coding Problems LC478 and LC565
111.System Design similar to Outlook
112.Resume Discussion and Coding Problem LC390
113.Deep Dive into Resume with Another Team's Manager
114.System Design similar to YouTube
115.Lasso vs Ridge Regression
116.Overfitting in Machine Learning
117.Model Evaluation
118.Supervised vs Unsupervised Learning
119.Designing an A/B Test
120.Business Case Analysis
121.Additional Features for Apple TV
122.Python Techniques for Feature Engineering
123.Identify Popular Genres
124.Define Completion Rate
125.Code Review for OOD Game
126.IP to Domain Name Mapping
127.Course Schedule Problem
128.Receiving Negative Feedback
129.Dealing with Cross-Team Challenges
130.Tackling Challenging Projects
131.Improving Team Atmosphere
132.Handling Difficult Colleagues
133.Short coding exercise focusing on programming in Python
134.Discuss the role and your background in detail
135.LRU Cache Implementation
136.Implement a String Class with Iterator Function Without Using Libraries
137.Code Review and Optimization
138.Implement a Thread Pool and Analyze Optimization
139.System Design and Object Detection Questions
140.Data Structure Class Design
141.Analyze and Optimize Training Code
142.Implement Batch Normalization
143.Find Anagrams
144.Design Your Own Redux Store
145.BFS for City Stops Problem
146.Elevator System Design
147.Linked List Operations
148.Throttle Function Implementation
149.Palindrome Verification
150.Discuss decision making within your team and the choice between product-driven and engineer-driven approaches.
151.Discuss a project from your resume that the hiring manager finds interesting, including challenges faced.
152.Solve a complex, multi-step graphics-related problem.
153.Describe a system you have implemented and how you would present it to a colleague who is taking over.
154.Discuss your knowledge of C++ basics, graphics, and animation.
155.Outline the types of questions and discussions you had with different interviewers during the Apple (Mystery Product) System EE onsite interview.
156.Discuss the technical and behavioral questions you encountered during the Apple iPhone (Analog) System EE interview process.
157.Explain the role and responsibilities of a system EE within a team that handles hardware planning, mainboard design, and product validation.
158.Describe the process and considerations for integrating a camera sensor and SoC into a PCB for a product that requires photography capabilities.
159.Sorting Algorithm Explanation
160.Binary Tree Traversal
161.Memory Management in C++
162.General Characteristics of 3D Rotation Matrix
163.Identify the Rotation Matrix
164.Characteristics of 3D Rotation Matrix
165.3D Mathematics - Dot and Cross Product
166.Find the next multiple of 8
167.Hexadecimal representation
168.Calculate the power of 2
169.Merge Intervals
170.Best Time to Buy and Sell Stock
171.Design an Elevator Management System
172.Design a Distributed Delay Queue
173.Implement LRU Cache
174.Design a Payment System
175.Design a Counter Class
176.Coding Challenge
177.Design a Rate-Limiting System
178.Design a System for Searching Images
179.Binary Tree Row-wise Sorting
180.Implement a Queue Class
181.Understanding of High Concurrency and Redis Solution
182.Course Selection Rationale
183.Why did you switch your major?
184.Identifying Anomalous Account Login Behavior
185.Case Study: Impact of Financial Aid on Education Investment
186.Top K Timestamps from Data Stream
187.Implement a class for data stream average calculation
188.Designing 'Find My Friends' Backend Service
189.3Sum Less Than Target
190.Tic Tac Toe Win Condition
191.Command Set Processing
192.Interesting Course
193.Favorite Programming Language
194.Binary Tree 2-Sum
195.Array Sorting and Deduplication
196.Implement a Box Filter in C++
197.Bitwise Operation to Swap Even and Odd Bits
198.Implement a Hash Map in C
199.Design a Data Structure for Image Compression
200.Number of Continuous Pixel Value Regions
201.System Design for Data Validation
202.System Design for Log Collection and Error Diagnosis
203.Interval Merge Coding Problem
204.Design a JSON Structure for API Data Transmission
205.LeetCode Easy Problem
206.Behavioral Questions
207.Explain Spring Boot related concepts
208.Discuss Java 8 features
209.Prefix Sum Problem
210.Code Review Exercise
211.Database Schema Design for a Subscription Feature
212.Least Recently Used (LRU) Cache Implementation
213.Dynamic Programming Problem
214.Longest Line of Points in 2D Space
215.Sliding Window Problem
216.Binary Search Problem
217.Identifying Overfitting in a Model
218.Explaining Overfitting to a Business Partner
219.Reporting Metrics for Fraud Detection
220.Designing a Spam Detector
221.Hypothetical Work Scenarios
222.SQL Window Function Usage
223.Dealing with App Store Malicious Positive Reviews
224.Handling False Positives in Fraud Prevention
225.Find the First Index in a Sorted Array with Repeated Values
226.Print Leaf Node Values
227.Retention Analysis Case Study
228.Advanced SQL Coding Challenge
229.Python Coding Challenge
230.Design a Weather Prediction System
231.Code Review for Merging Two Sorted Arrays
232.System Design for Large-scale Word Ladder
233.Merge K Sorted Lists
234.LRU Cache Implementation
235.Apple Pay Campaign Analysis
236.Knowledge of Computer Vision and Machine Learning courses
237.Explain a project from your resume and its difficulties
238.Discuss your internship project related to Machine Learning
239.Committing Fraud Hypothetical Case
240.Dashboard Design
241.Python Coding for Palindrome
242.SQL Query Writing
243.Fraud Case Analysis
244.Discuss the tools you use for production quality analysis.
245.Explain how you deal with vendors providing non-qualified parts.
246.Discuss your approach to improving quality.
247.Explain how you prioritize your tasks.
248.Describe a case that demonstrates your leadership.
249.Discuss your approach to conflict resolution.
250.Explain your pride project and the challenges involved.
251.Describe your experience with final assembly and managing multiple assembly lines.
252.Discuss a time when you had to handle conflicts.
253.Explain CPK and CP in the context of quality control.
254.Describe a situation where you had to handle a late critical part.
255.Discuss your method for improving product yield.
256.Describe your approach to managing a manufacturing line.
257.Explain the concepts of strength and stiffness in materials.
258.ML Design for Evaluating NLP Tasks
259.Statistical Foundations and A/B Testing
260.AB Testing
261.Behavioral Questions
262.Data Pipeline Experience
263.KPI Analysis
264.Airline Ticket Cost Estimation Tool
265.Test Case Design: Testing a Specific App Page
266.Troubleshooting: QA Environment Down, Browsers Not Affected
267.Problem-Solving: Finding the Unique Number in an Array
268.Problem-Solving: Identifying the Odd Image Out
269.Design Question: How to Test a Pen
270.Check if two strings are anagrams.
271.Describe your proudest project.
272.Java Iterator Implementation with Skip Feature
273.Trie Search with Graph Output
274.Sentence Permutations
275.2D Matrix Word Search
276.SQL Query Formulation
277.Interpreting A/B Test Results
278.Designing an A/B Testing Framework
279.Difference between boosting and bagging
280.Career Development
281.Handling Work Pressure and Conflicts
282.2D Matrix Transpose
283.Array Permutation
284.Linear Algebra Knowledge
285.3D Mathematics Knowledge
286.C++ Knowledge and Implementation
287.Behavioral Questions Assessment
288.Implement a JSON Parser
289.Design ML Feature Store
290.Design Airflow
291.Design an Uber dynamic pricing system
292.Types of Control Flow in Java
293.TCP Handshake Process
294.HTTP Return Codes
295.Thread vs Process
296.Differences between TCP and UDP
297.Implement Precision Recall Curve
298.Implement getExponent Function
299.Prime Factorization with a Given List of Primes
300.Query Disambiguation and Segmentation
301.Improve Diversity in Recommendations
302.Implement Trie with Frequency-Based Top N Words
303.Design a File Scanning System
304.Design a Thread-Safe HashMap
305.Implement a Search Function
306.Bayesian Probability Calculation
307.Function to Check Prime Number
308.SQL Query for Average Time Spent Per User
309.Implement a Least Recently Used (LRU) Cache
310.System Design for URL Shortener
311.Generate a Mock JSON Response Based on a Given JSON Schema
312.Calculating Power in A/B Testing
313.Understanding Type I and Type II Errors
314.Identifying Outliers in Daily Metrics
315.Metric Design for Search Product
316.Basic SQL Join and Where
317.Normal Distribution of 2X+Y
318.Find the maximum value in each row of a tree
319.Identify and resolve deadlock in code
320.Design a kernel with energy constraints and real-time constraints
321.Difference between mutex and semaphore
322.Modeling for Siri User Satisfaction
323.Most Frequent Pattern in a Sentence
324.Siri Customer Satisfaction Analysis
325.Fibonacci Sequence Algorithm
326.Wired/Pinned Pages
327.Page Sizes and Their Trade-offs
328.Process vs. Threads
329.Worker Thread Quantity for User Demand
330.Multicore Scheduling Methods
331.Preventing Priority Inversion
332.Ensuring Critical Tasks Run in Kernel
333.Differences Between Preemptive and Cooperative Scheduling
334.Scheduling Quantum Design Considerations
335.Describe interrupts and when to mask them
336.Job Scheduler System Design
337.Ring Cache Implementation
338.String Justification
339.Sort an Array with Two Distinct Elements
340.Product Milestone Planning
341.Dealing with Difficult Technical Experts
342.Collaboration with Cross-Functional Teams
343.Supplier's Delay in Delivery
344.Reporting to Executives
345.Supplier Interaction
346.Application Response to Mouse Actions
347.Mouse Click Application Detection
348.Mouse Interaction Without Interrupts
349.Operating System Layers
350.Mouse Movement Mechanism
351.Minimal Truck Weight Optimization
352.Explain the Kogge-Stone adder and logic effort for gate sizing.
353.Discuss methods to reduce circuit power consumption.
354.Explain bandgap reference and its applications.
355.Discuss the behavior of MOSFET current at different temperatures and the effect of gate voltage on total capacitance.
356.Identify and explain various bias circuits.
357.Describe the differences between a folded cascode amplifier and a telescopic amplifier.
358.Explain basic CMOS physics and current equations.
359.Topological Traversal of a Graph
360.Detail the pass manager
361.Explain data flow analysis
362.Discuss the projects listed on your resume
363.Service for Image Search
364.Design a file system
365.Implement message passing between computers
366.Implement a Module from a Given Paper
367.Design Functions for a Directed Graph
368.Bipartite Graph Determination
369.Optimizing Large Data Processing
370.Debugging Approach
371.Hash Table Implementation
372.Behavioral Questions on Problem-Solving
373.Behavioral Questions Related to Career Development
374.Machine Learning System Design
375.Machine Learning Workflow Knowledge
376.Advanced Python Programming for Data Science
377.Migrate a Local Project to Production
378.Design a Service to Push High Priority Jira Bug Tickets to Slack
379.Design a Service Similar to GitHub Focusing on Infrastructure
380.Design a System to Validate a Poker Card Shuffle
381.Generate Random Email and Phone Numbers
382.Troubleshoot a Subnet ACL Issue
383.Design a Feature for Synchronizing Wi-Fi Passwords Between Mac and iPhone
384.How do you handle hashcode collisions in a hashmap?
385.How is a mutable array implemented?
386.What is a race condition?
387.What is a deadlock and how can you create one?
388.Generate All Permutations of a List with Constraints
389.Implement Red-Black Trees and Hashmaps
390.Implement Negative Cache
391.Implement a Deadlock
392.Algorithm Problem Solving
393.Evaluate recent research papers.
394.Discuss the implementation details of a project you worked on.
395.Strategies for achieving high CPK levels in your company.
396.Discuss cases of variable and attribute in GR&R.
397.Approach to determining and solving tolerance issues in design.
398.Differentiate between CP and CPK and the advantages of using CPK.
399.Describe the basic process of GR&R and how to handle failures.
400.Explain the concept of GD&T and its importance in quality engineering.
401.Explain a Rotation Matrix
402.Vector Rotation with a Rotation Matrix
403.Meaning Behind Dotting Two Vectors
404.Store and Find Unique Binary Files
405.Design a Package Manager Tool
406.Simulate an Interpreter with Edge Case Handling
407.Task Scheduler Optimization
408.Count Valid Examples Based on Rules
409.Handle Edge Cases in Kth Largest Element Algorithm
410.Implement a Tail Command for Large Files
411.Trie Implementation and Result Deduplication
412.String Character Frequency Comparison
413.LRU Cache Scaling
414.System Design for Task Assignment
415.Compare Version Numbers
416.2Sum Problem
417.Sort a list of strings representing numbers
418.Describe Signal Handlers
419.Explain Virtual Memory
420.Reverse a Linked List Using Iterative Method
421.Diagnosing Long-Running Reduce Jobs in MapReduce
422.Ensuring Key Consistency in Shuffling for MapReduce
423.Calculating RF Feedback
424.Deriving DSP Feedback Loop
425.Sensor Specification Assessment
426.Implementing LPF with Switched Capacitor and Probe Compensation
427.Measuring Capacitance and Designing RF Spectrum Analyzer
428.LED Driver Output Current Control
429.Analyze an Amplifier Circuit
430.Memory Offset Copy
431.Nested Dictionary Element Access
432.C Code Data Alignment Issue
433.Palindrome Problem
434.Differences between semaphore and mutex
435.Differences between git merge and rebase
436.Experience with Memory Overflow
437.Memory Leak Identification and Prevention
438.Differences between stack and heap in terms of data structure
439.Top K Largest Numbers in a Stream
440.Describe a project you have worked on and the difficulties faced
441.Discuss an internship project, the models used, and the difficulties encountered
442.Word Search 2 Implementation with an Additional Data Structure
443.Five-Year Career Vision
444.Career Motivation
445.Stock Allocation Among Partners
446.Role Understanding
447.Communication Prioritization
448.Handling Short Supply of Security Cables
449.Machine Learning Application Coding
450.Multimodal Prediction Problem
451.Best Practices for Ensuring Project Quality
452.Machine Learning Project Discussion
453.URL Shortening Service
454.Tag Recommendation System
455.Autocomplete System Design
456.Suffix Array Problem
457.Debugging with GDB
458.RC Network Step Response and Pole-Zero Analysis
459.Feedback & Non-linearity in Circuits
460.Sample and Hold Circuit Noise Behavior
461.Analyze Current Bias Common Stage Output Noise
462.Longest Valid Parentheses
463.Jump Game Variant: Minimum Jump Steps
464.Substring Removal from a String
465.Processing Large Files That Do Not Fit in Memory
466.Sentence Reversal by Words
467.Path Counting in a Grid
468.Permutations with Duplicates Optimization
469.Design a Bookshelf System
470.Two Sum Problem
471.Number of Islands
472.Reverse Words in a String
473.Describe the operation of an opamp circuit with specific configurations and sketch the transfer function versus frequency without using equations.
474.Top 5 Contents by Months by Country by Paid Plans
475.2019 Monthly Trend of Active Paid Subscriptions
476.Squares of a Sorted Array
477.Unique Number of Occurrences
478.Valid Parentheses
479.Implement Heap Constructor and Add Function
480.Design a Parking Lot using Object-Oriented Design
481.Anagram Strings Function in Python
482.Segmenting Users
483.Find Index with Equal Sum on Both Sides
484.Quality Assurance of Design/Product
485.Storing JSON Files
486.Bias-Variance Tradeoff and Overfitting
487.Time Series Model and ACF/PACF
488.Propensity Model and Beta Estimates Calculation
489.Difference Between Random Forest and XGBoost
490.Count Daily Active Users on Each Platform
491.ArrayList Addition
492.Reverse an ArrayList
493.Explain the principle of softmax and how would you test it?
494.Implement and Optimize K-means Algorithm
495.Behavioral Interview: Handling Negative Feedback and Approaching New Projects
496.Code Review and Software Engineering Best Practices
497.Technical Details in Detection for ML/CV
498.Machine Learning Detail Discussion
499.Derivative and Gradient Descent Implementation
500.Implement a Specific Layer Using TensorFlow or PyTorch
501.Android Unlock Patterns
502.Refactor Rock-Paper-Scissors Code
503.Explain the purpose and usefulness of the circuit
504.Calculate the time for Vx to settle and the time constant
505.Determine the settled value of Vx(t) as time approaches infinity
506.Sketch the voltage Vx(t) over time
507.Describe the operation of the given circuit
508.Coding Questions
509.Objective-C Knowledge
510.Calculator Implementation
511.Design a Mobile API for Backend Interaction
512.Design a Data Structure with O(1) Operations
513.Design an Online Book Reader App
514.Solve a deadlock problem using concurrency
515.Implement a bitmap using C
516.Intersection of Two Arrays Using Binary Search
517.Explanation and examples of testing frameworks
518.Identifying problems in images
519.Challenges in depth mode for camera systems
520.Identify potential issues with Face ID technology
521.Object-Oriented Concepts in C++
522.ASIC Flow and Digital Verification Concepts
523.Understanding of CPU Pipeline and Timing Analysis
524.Verilog Design and Testbench Creation
525.Design a Transistor Level Circuit
526.Explain Leakage Power and Timing Analysis in VLSI and CMOS
527.Power Consumption in Circuits
528.Sense Amplifier Design and Offset
529.Discuss Bandgap Reference
530.Explain GIDL and its relationship with threshold voltage changes
531.Optimize Algorithm Performance
532.RTOS Synchronization
533.Designing Data Handling for Limited SPI Interrupts
534.Writing an Interrupt Service Routine (ISR)
535.Utilizing SP and PC Register Information
536.Debugging a System with Occasional Hangs
537.Embedded System Interrupt Procedure
538.Understanding Hex Number Layout in Memory
539.Explain big endian and little endian.
540.Where is a static variable saved in memory?
541.Golf Puzzle
542.Frequency Divider Flip-Flop Connection Issue
543.Minimum Gate Resistor Value Calculation
544.Difference Between Flip-Flop and Latch
545.Battery Management System (BMS) Modules
546.Design Problem: Battery Voltage Level Cut-off
547.Determining ADC Sampling Frequency
548.Switching Loss in Buck Converter
549.Identify Op-Amp Configuration
550.RC Charging Step Response
551.Function and Calculation of ADC
552.Explain Inverting and Non-Inverting Op-Amps
553.How would you design a text editor that supports input, deletion, and cursor movement?
554.What is the difference between inheritance and composition?
555.What is Endianness?
556.How would you debug a slow-loading webpage?
557.What is the result of a binary number XORed with itself?
558.What happens after you enter a URL in the browser?
559.Why do you want to work at Apple?
560.Coding and OOP Design Question from Apple Interview
561.Behavioral Questions from Apple Interview
562.Implementing a Hash Map
563.Permutation (In Place)
564.Discuss your experience with C++ and related concepts.
565.Discuss your approach to building and optimizing engineering projects.
566.Explain the forward and backward propagation in neural networks.
567.Explain How Hashmap Works
568.Debugging High Latency in a Service
569.Design a Key-Value Store
570.Number of Islands
571.Front-end System Design: Apple Contacts List
572.Front-end System Design: Auto-complete Search Box
573.Front-end Coding Challenge
574.Startup Strategy Discussion
575.Understanding Mipmaps
576.Basics of Computer Graphics
577.Implementation and Application of Queues
578.Displacement of Water by a Stone
579.Closed Room with an Operating Refrigerator
580.Temperature Selection for Heat Treatment
581.Material Selection for Structural Support
582.Rotational Force Balance
583.Stress-Strain Curve Analysis
584.Torsion Balance on a Rod
585.Design and Stress Analysis for Mobile Devices
586.Technical Fundamentals Assessment
587.iPod Battery Door Design
588.Mechanical Property Exploration of Laminated Sheets
589.Design a Home Button Mechanism
590.Humanize Byte Function Implementation
591.Number of Users Whose First Play is in April 2021
592.Number of Users Visited Pages but Didn’t Play
593.Number of Cross-Platform Viewers
594.Reverse String with Ordered Digits
595.Difference Between RANK and DENSE_RANK in SQL
596.SQL Join and Basic Filtering
597.AB Testing Group Sample Size Sanity Check
598.Pseudocode for Python dictionary keyword search.
599.Impact of buffering the clock or adding delay to the master latch's clock on setup-hold time requirements.
600.Describe the operation of a master-slave latch flip-flop.
601.Compare the delay and Elmore delay of a NAND2 and a NAND5 sized with the same transistor width.
602.Effects of setting all MOS transistors to the same width in a NAND5.
603.Sizing a NAND2 for a balanced inverter with a given PN ratio.
604.Plot the Vout-Vin curves for an inverter with a weaker NMOS and explain the changes.
605.Plot the Vout-Vin curves for an inverter as described previously.
606.Describe the MOS operation region transition for an inverter with rising input.
607.Software Testing Engineer for FaceID
608.System Testing Engineer Questions
609.Communication Certification Engineer Questions
610.Bluetooth Protocol Knowledge
611.Develop WiFi Test Cases
612.Design a Testing Framework
613.TextProcessor Class with Cosine Similarity Method
614.Python Class for Text Document Analysis
615.Python Function for Mean, Median, and Mode
616.Object-Oriented Programming in Data Science Interviews
617.Product Sense for a Cash Back Credit Card Launch
618.SQL Query for Top 2 Amounts Spent by Each User
619.SQL Query for Total Amount Spent by Apple Pay Users vs Non-Apple Pay Users
620.Multithreading Problem - LeetCode 1115
621.Difference Between Thread and Process
622.HashMap Find Repeat Element
623.Minimizing Random Error Due to Mismatch in Current Mirror
624.Reducing Systematic Error in Current Mirror
625.Phase Inversion Phenomenon in BJT Input Pair
626.Voltage Waveform in NMOS Common Source
627.RC Network Voltage Change
628.Implementing std::function
629.C++ Library Development Considerations
630.Increased Power with Reduced Data Exposure
631.Launching Features Based on Country-Specific Results
632.Early Termination of an Experiment with Significant Results
633.Factors Affecting the Duration of an Experiment
634.Effect of Sample Proportion Changes on P-Value
635.Comparing Two Population Proportions
636.Bi-gram Count in Page Titles
637.Identifying the Most Visited Domain
638.Unique Domain Extraction from URLs
639.Evaluating New Search Features
640.Evaluating Student Performance Changes
641.Reducing the Confidence Interval to a Tenth of Its Original Size
642.Implement SVD forward and backward propagation.
643.Explain distributed training, dataloader collector, and model definition in PyTorch.
644.Why are matrix operations faster on a GPU than a CPU?
645.Why is C faster than Python?
646.Design a Job Scheduler
647.Maximum Sum Rectangular Submatrix
648.Palindrome Subsequence Count
649.Choosing Between Device Level CTR and Impression CTR
650.Handling Positively Skewed Distributions
651.Statistical Concepts
652.SQL Query for Highest Click-Through Rate
653.Deep Learning and Computer Vision Questions
654.Traditional Computer Vision Problems
655.Machine Learning High-Level Understanding
656.Graph Coloring Problem
657.Graph Convolutional Network and Spatial-Temporal Graph
658.Deep Learning Fundamentals
659.Zigzag Iterator
660.iMac Display Stand Design
661.Cantilever Beam Improvement
662.Minimum Height Trees
663.Implement KNN and Discuss Related Concepts
664.LRU Cache Implementation
665.Decode String
666.Endianness Detection Code
667.Multi-core Load Balance Implementation
668.Multi-thread and Multi-core Related Questions
669.Improving Image & Video Quality
670.Designing Research as a Product
671.Deep Learning Knowledge Assessment
672.Computer Vision with Random Variables
673.Computer Vision Coding Challenge
674.Design an ML System for Recommending Nearby Drivers
675.Design an Autocomplete System
676.Design a Data Structure for Storing and Indexing 2D Coordinates of Stores
677.Machine Learning Concepts and Hardware Acceleration
678.Python and C++ Basic Concepts
679.System Design Concepts
680.Python Dictionary Key Issue
681.Language Model Inference Architecture
682.Differences Between Adam and AdamW Optimizers
683.Differences Between BERT and GPT
684.Transformer Multi-Head Attention Complexity
685.Random Permutation Using Numpy
686.Implement Dropout in Neural Networks
687.Find the Cycle in a Graph
688.Meeting Room Scheduling
689.Work-related Scenario Question
690.Understanding and Perspective on the Role
691.Find 2nd Largest Number in an Array
692.How would you handle a situation where a team member is not cooperative?
693.Describe the deployment process for CI/CD and the different deployment methods.
694.Find the First Unique Element in an Array
695.Dealing with Conflict in Collaboration
696.Machine Learning Algorithms and Data Experience
697.Transformer Architecture and Self-Attention
698.Finite State Gradient Function
699.Simple Triangular Shape Print
700.Debugging a Website Access Issue
701.Object-Oriented Design for Chess Game
702.System Design for Data Visualization
703.System Design for Log Collection
704.Tic-Tac-Toe Board Evaluation
705.Design a Language Model Similar to a Deck of Cards
706.Longest Substring Without Repeating Characters
707.How to securely store user keys for encrypted transmission without exposing the actual keys?
708.Deadlock Explanation and Resolution
709.Understanding ACID Properties
710.Considerations for a Read-Heavy System
711.Estimating the Number of Gas Stations
712.Visualization Design
713.SQL Join Types
714.SQL Window Function and Group By
715.Panorama Photo Stitching Implementation
716.Deep Learning Basics and Image Denoising
717.Implement Image Histogram
718.Optimize Box Filter Using Metal
719.Implement Box Filter in C
720.Implement 2D Image Convolution in C
721.Return K Shortest Phonetic Combinations
722.Detect Invalid Input Using Trie
723.LeetCode Dice Roll Simulation
724.ML Problem Solving in NLP
725.Recommendation System Case Study
726.Data Challenge and Presentation
727.SQL Coding Round
728.Java Iterator Usage
729.Kernel-Related Questions
730.Concurrency Concepts
731.Sliding Window Technique
732.Clone Graph Problem
733.Image Processing and Filtering Techniques
734.Design a Car Rental System
735.Minimum Number of Treats to Take in a Given Time
736.Minimum Number of Treats to Take in Given Time
737.Why Apple?
738.Technical Questions on Mechanical Engineering
739.Design Challenge: Battery Door
740.Describe your proudest mechanical project
741.Simplified Inversion Pair Problem
742.Inverse Function Character Compression
743.Character Expansion
744.Design a Search Recommendation System
745.Create a Generator for Random Email Addresses and Phone Numbers
746.Case Study: Unbiased Testing of AirPods Design Satisfaction
747.Longest Increasing Subsequence with Gap Constraint
748.Find the Largest Palindromic Number
749.Implement an on-disk key-value store with specific features
750.Python Coding Exercise
751.Understanding of Computers
752.Interests and Motivations for Pursuing a Master's Degree
753.Algorithm Trade-offs in Memory-Constrained Environments
1. Dense Rank vs Rank
SQL:dense rank()跟rank()的区别
2. SQL join中的where和on的区别
SQL:left join 的join condition 用where 跟on 的区别
3. 抛硬币的概率计算
假设我们有一个fair coin,考虑到前十次投都是head的情况下,第11次投得到tail的概率
4. ios12和ios13开机时间测试
设计一个比较ios12 与ios13开机时间有没有变化的实验,用hypothesis test
5. Center计算
给你一天高速车辆速度的数据,求一个center,给什么答案
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