The article examines the current chaos in DevOps hiring, exposing how certifications often mask a lack of practical ability, and offers concrete, experience‑based strategies—such as mastering fundamentals, troubleshooting, log analysis, honest self‑assessment, and building a solid portfolio—to succeed in DevOps interviews and improve hiring processes.
This guide compiles essential MySQL interview questions covering storage engines, indexes, transactions, locks, and triggers, providing clear explanations and illustrations for both beginners and experienced candidates seeking to excel in database interviews.
This article shares Beike's recent campus hiring salary data and provides a comprehensive Java backend interview guide covering HTTP response codes, session vs. cookie, runtime and checked exceptions, abstract classes vs. interfaces, StringBuilder vs. String, JVM memory structure, multithreading techniques, thread‑pool parameters, the synchronized keyword, B+‑tree indexing, and essential Linux commands.
This article guides job seekers through the autumn recruitment season, highlights bank hiring timelines and English requirements, and then provides a comprehensive Java interview Q&A covering JVM memory structures, object allocation failures, the parent‑delegation model, message‑queue usage, Spring AOP principles, and database string type differences.
Drawing on interviews with hundreds of technical candidates, this article outlines practical resume‑screening criteria, the three key interview dimensions—problem‑solving, fundamentals, and soft skills—and compares the strengths of Go developers from Java, PHP, and native Go backgrounds.
This article explains the root‑cause analysis and step‑by‑step troubleshooting process for frequent Full GC events in Java applications, covering trigger mechanisms, impact assessment, common causes, monitoring tools, heap‑dump analysis, and both short‑term fixes and long‑term architectural improvements.
This article combines a visual ranking of overtime intensity at major Chinese internet firms with a comprehensive Java interview guide covering URL processing, DNS resolution, HTTP status codes, TCP termination, abstract classes vs interfaces, HashMap versus ConcurrentHashMap, HashSet internals, MySQL functions, and the SpringBoot startup sequence.
The article first presents a comfort ranking of Chinese internet companies, highlighting Tencent as the most comfortable, then provides a comprehensive backend interview guide covering networking fundamentals, HTTP protocols, Linux process commands, MySQL indexing, C++ struct vs class, STL containers, map thread‑safety, and the differences between queues and stacks.
This article compiles a comprehensive Java interview guide covering object‑oriented fundamentals, method overloading vs overriding, core collection implementations, Spring bean lifecycle, composite index usage, process/thread/coroutine distinctions, Linux IPC methods, design‑pattern principles, Redis roles and data types, relational vs NoSQL trade‑offs, QR‑code login design, and a classic 15‑minute brain teaser.
This article explains the fundamental differences between stack and heap memory allocation, covering their allocation mechanisms, performance characteristics, common pitfalls such as stack overflow and memory leaks, practical code examples in C/C++, and typical interview questions to help developers choose the right memory model for their applications.
This article walks through the fundamentals of Java's AbstractQueuedSynchronizer, covering lock‑queue relationships, CLH lock internals, dummy head nodes, state management, and step‑by‑step implementations of acquire, addWaiter, acquireQueued, shouldParkAfterFailedAcquire, and release methods, complete with runnable example code.
After conducting 16 one‑on‑one mock interviews and debriefs, we identified five recurring issues—from lacking a holistic project view and poor expression to sloppy resume formatting, underutilizing large‑language models, and neglecting regular self‑review—that candidates should address to improve their interview performance.
This article provides a comprehensive Java interview guide covering effective self‑introduction, showcasing internship contributions, comparing Java and C++ features, explaining method overloading versus overriding, clarifying process‑thread differences and thread lifecycle states, and offering essential Linux commands for memory monitoring and file searching.
This article discusses the common interview problem of locating a missing ID in a sequential list, explains both sum‑based and XOR‑based algorithms, provides Java implementations, and shares practical tips for handling large data sets and avoiding pitfalls.
This article combines Shopee 2025 salary data with a comprehensive backend interview guide covering Java fundamentals, MySQL isolation levels, thread pool configuration, concurrency collections, index types, slow query optimization, and a sample three‑sum algorithm to help candidates prepare effectively.
This article explains the concept of state machines, why traditional if‑else logic is problematic, compares popular Java state‑machine frameworks, provides performance benchmarks, walks through a complete Spring Statemachine implementation for order processing, and offers practical optimization and monitoring tips for high‑throughput scenarios.
This article explains the core principles of the Least Recently Used (LRU) cache algorithm, details its operation and complexity, provides a complete C++ implementation with line-by-line analysis, showcases test cases, and offers practical interview tips and extensions such as LFU and LRU‑K.
The article explains why full‑stack operations engineers, despite their broad but shallow expertise, are invaluable system integrators and offers concrete interview strategies—reframing breadth as strength, storytelling with end‑to‑end impact, and showcasing a versatile toolset—to help them stand out against specialist interviewers.
The article reveals REDstar algorithm and developer salary packages, explains why Xiaohongshu’s work schedule changed, and then provides detailed Java interview questions covering MySQL indexes, composite indexes, Java primitive types, boxing/unboxing, ReentrantLock vs synchronized, Redis usage, common commands, distributed locking, and the benefits of RocketMQ, all illustrated with code snippets and diagrams.
The article first marvels at the record‑breaking sales of Xiaomi's YU7 electric SUV, then provides a comprehensive set of Java and Spring interview questions—including B‑tree differences, MySQL hash indexes, ReentrantLock internals, Spring's circular‑dependency resolution, AOP principles, and Spring Cloud components—to help candidates prepare for Xiaomi's upcoming campus recruitment.
The article shares a detailed SF interview experience, covering typical Java interview questions such as self‑introduction, challenging projects, learning paths, abstract class vs interface, HashMap vs Hashtable, insertion steps, red‑black and B+ trees, MySQL and Redis indexing choices, large‑table optimization, JVM memory model, and the purpose of the Survivor space.
This article walks through the fundamentals of C++'s std::vector, covering its basic concepts, common use cases, detailed implementation of key operations like push_back, pop_back, and iterators, deep source‑code analysis, and practical interview strategies for hand‑coding the container.
This article explains the distinct roles of const and constexpr in C++, covering their usage with variables, pointers, function parameters, and class members, comparing compile‑time and run‑time behaviors, and offering practical interview strategies and code examples for developers.
Learn how covering indexes eliminate table lookups, understand the mechanics of SQL back‑table operations in InnoDB, and apply the leftmost prefix rule for composite indexes, with clear examples and practical tips to ace MySQL interview questions and improve query performance.
This article analyzes 58.com’s recent business struggles and layoffs, then presents a comprehensive set of Java interview questions covering synchronized vs. Lock, JVM memory layout, garbage collection, TCP connection teardown, MySQL indexing pitfalls, and common sorting algorithms, providing detailed explanations and code examples.
Beyond the hype of counting code lines, this article explores why quality matters and presents a classic interview problem—finding the second‑strongest contestant in a knockout tournament—using a binary‑tree simulation with a concise Java implementation that runs in optimal time.
This article breaks down Huawei OD's five‑stage interview pipeline—online test, comprehensive assessment, technical rounds, HR interview, and supervisor interview—detailing each phase's format, scoring, preparation focus, common pitfalls, and practical advice to help candidates navigate the process successfully.
This article walks through C static keyword meanings, struct size calculations, macro definitions, hexadecimal conversion functions, a full‑featured Linux I2C driver example, and a list of common interview questions for embedded and kernel development, providing clear explanations and code snippets.
This article explores why top engineers speak concisely, then dives into the classic LeetCode "Rotten Oranges" BFS interview question, providing a clear Java implementation, step‑by‑step analysis, and key takeaways for mastering grid‑based graph traversal.
This article clarifies whether a C++ vector object resides on the stack, heap, or in static storage, explains that its elements are almost always allocated on the heap, covers special cases like small‑vector optimization, and provides interview‑ready answers with sample code and memory‑location experiments.
This article dissects a Pinduoduo Java backend interview, covering Redis caching strategies, MQ usage, lock mechanisms, thread‑pool tuning, database index differences, and data‑structure choices like ZSet and B+‑Tree, providing concrete examples and code snippets for each topic.
An interview-style SQL challenge asks you to identify records where a professor teaches a course belonging to a different college than their own, providing table definitions, sample data, and the expected result, while inviting readers to devise the correct query.
Explore essential Redis Cluster interview questions covering slot count, hashing mechanisms, use cases, configuration options, hash slots, hash tags, node ports, and consistency model, providing concise answers that help candidates master the core concepts and excel in technical interviews.
This guide compiles over 200 essential Linux interview questions—including fundamentals, system architecture, security, shell scripting, load balancing, and practical command tasks—to help IT professionals prepare for technical interviews and boost their career prospects.
This article shares an interviewee's experience discussing core Flink interview questions, including typical resource allocation for large online tasks, common problems such as data, performance, stability, and resource issues, and the monitoring practices for clusters and tasks, while also containing a brief self‑promotion.
The article combines practical advice for fresh graduates seeking internships and interview tips, shares a detailed ByteDance three‑round backend interview experience, explains MySQL master‑slave replication stages, binlog formats, and compares blocking, non‑blocking, multiplexed, and asynchronous I/O models.
This article reviews common interview questions for data development roles, covering Spark stage partitioning and optimization, criteria for evaluating data warehouses, Flink's handling of late data, and provides practical answers and resources to help candidates deliver standout responses.
This article compiles an extensive Python cheat‑sheet covering language differences between Python 2 and 3, essential libraries, concurrency, data structures, design patterns, testing, performance tips, database and networking fundamentals, along with numerous code examples and interview insights for developers.
A detailed walkthrough of a friend's first‑round interview at Toutiao, covering self‑introduction, project deep‑dive, OS scheduling, TCP reliability, SQL join, and two linked‑list reversal implementations, with the exact questions and code shown.
When designing a schema for two‑billion phone numbers, use a VARCHAR(20) column with utf8mb4 Unicode, a unique index, and proper validation/encryption rather than a 32‑bit INT, because strings preserve leading zeros, international prefixes, extensions, and support business extensibility, fault tolerance, and future changes.
The article examines the rapid rise of AI interview software, highlighting its appeal to job seekers, the potential for cheating, expert criticism, associated risks, and the need for balanced, ethical approaches to ensure fairness in recruitment.
This article shares three high‑quality interview questions from a JD big‑data interview, covering practical Spark tuning, Flink's exactly‑once guarantees in production, and Paimon's asynchronous merge mechanism, and explains how to answer them with real‑world scenarios.
In algorithm‑focused internet company interviews, asking thoughtful reverse‑questions—such as the core competitiveness of algorithm engineers, challenging project problems, debugging experiences, and methods for guaranteeing correctness—demonstrates genuine interest, technical depth, and a passion for improvement, leaving a strong positive impression on interviewers.
A friend who landed a 16K job in a first‑tier city shares more than 30 interview questions he encountered across ten+ companies, covering JVM internals, performance tuning, concurrency, design patterns, database locking, distributed transactions, and system reliability.
The article recounts a McDonald's China backend interview, explaining IoC/DI concepts, MyBatis benefits, JVM garbage‑collection and memory layout, MySQL engine differences, concurrency locking strategies, RPC advantages over HTTP, HTTPS basics, essential Docker/Kubernetes commands, and a typical Git workflow.
This article explains Java's syntactic sugar—features like enhanced for-loops, autoboxing, varargs, string switches, and try‑with‑resources—showing the original concise syntax, the compiler‑generated code behind it, and practical considerations for performance and readability.
The article examines the growing tension between product‑manager candidates and companies over demanding prototype assignments in interviews, exposing trust gaps, time‑cost anxieties, and misaligned expectations, and offers practical strategies for both applicants and recruiters to make the process fairer and more effective.
This article compiles the most frequently asked Redis interview questions, covering fundamentals, data structures, persistence mechanisms, high‑availability features, clustering, performance tuning, and troubleshooting, providing clear explanations and practical guidance to help candidates confidently tackle any Redis interview.
After being laid off, the author interviewed only four companies, detailing each interview’s technical questions—from Spring Cloud and MySQL to concurrency and design patterns—and reflecting on the interviewers’ professionalism, the relevance of his skill set, and the importance of matching resumes to job requirements.
This article compiles 174 interview questions covering Linux system administration, container orchestration, networking, databases, security, and Kubernetes, drawn from a week of interviews with major tech companies, providing a comprehensive study guide for aspiring operations engineers.
The article outlines eighteen critical considerations for designing backend interfaces, ranging from documentation format and unified parameter schemas to encryption, idempotency, versioning, and monitoring, providing interview-ready insights that can impress hiring managers.
This article recounts a three‑stage interview for a multimodal large‑model position at Taobao's Search AI division, detailing typical questions on CLIP, LoRA, BLIP, Qwen‑VL, Transformer fundamentals, RLHF, and coding challenges, and offers insights on what interviewers focus on.
A technically proficient developer with seven years of experience keeps getting rejected in first or second interview rounds because he lacks deep understanding of HashMap O(1) mechanics, cannot articulate architecture trade‑offs, and rarely reflects systematically on his projects, as outlined in three key problem areas.
This comprehensive guide explains JavaScript closures, covering their definition, memory‑leak risks, loop pitfalls, private variables, this binding, module pattern, static scope, performance impact, and currying, each with clear answers and practical code examples for front‑end interview preparation.
A curated collection of over 1,000 interview questions covering operations engineering, Kubernetes, Linux, Docker, networking, databases, and related tools, designed to help candidates master essential concepts and prepare effectively for technical interviews.
Even seasoned ops engineers can become tongue‑tied in interviews because mild nervousness combined with complex storytelling overloads working memory, but applying cognitive‑load theory and structured, concise expression can restore clarity and performance.
This article shares the ByteDance Java backend internship first‑round interview experience, detailing the company's massive hiring drive, interview structure, and deep technical questions covering URL parsing, DNS resolution, TCP handshake, TLS, HTTP request handling, and related networking concepts.
This article explains how Java's ThreadPoolExecutor ensures core threads stay alive by analyzing the execute, addWorker, runWorker, and getTask methods, detailing the dead‑loop logic, timeout handling, and the conditions under which core threads can be reclaimed.
This comprehensive guide compiles expert answers to common interview questions covering software testing strategies, API automation, performance testing, Linux system administration, Docker and Kubernetes fundamentals, CI/CD pipelines, and effective team management practices, providing valuable insights for candidates and hiring managers alike.
This article shares personal reflections on a recent interview and provides detailed Python solutions for three classic coding challenges—a list index extraction using hash maps, a tree traversal reconstruction based on parent IDs, and a dynamic‑programming approach to the minimum path sum problem, along with code snippets.
This article breaks down Shopee's backend interview experience, covering salary offers, location details, interview difficulty, and a comprehensive review of essential topics such as network protocols, rate‑limiting algorithms, Java thread pools, Redis eviction and expiration strategies, MySQL isolation levels, index structures, MVCC, slow‑query optimization, redo vs binlog, and RocketMQ distributed transaction, ordering, and backlog handling, while also linking to useful open‑source projects and video tutorials.
In an 85‑minute interview, Microsoft CEO Satya Nadella discusses the company’s AI‑first cloud vision, the emergence of AI application servers, stateful AI tools, the shift away from traditional search, browser competition, and strategic approaches to model training, hardware supply, and operational leverage.
This article compiles detailed backend interview notes covering salary expectations, OS stack vs heap differences, process and thread concepts, DNS resolution, ping protocol, MySQL indexing and locking mechanisms, Redis performance characteristics, Kafka throughput optimizations, and Docker's underlying implementation.
This article compiles thirty‑five essential Linux operations interview questions covering server management, RAID configurations, load‑balancing choices, middleware concepts, MySQL troubleshooting, networking tools, security practices, scripting examples, and system‑level optimizations, providing concise expert answers for each topic.
The article presents recent tech-company salary figures and a comprehensive set of backend interview questions spanning Go language fundamentals, memory management, networking protocols, OS synchronization, MySQL transaction isolation and indexing, Redis performance, design‑pattern implementations, and classic algorithms such as quicksort.
The article recounts a recent Hikvision interview, outlining campus salary ranges and providing a technical Q&A that explains Spring Boot’s startup sequence, Spring MVC request handling, MySQL index structures, creation rules, and performance diagnostics, as well as Redis’s in‑memory, single‑threaded architecture and optional I/O threading.
This article provides concise answers to common DevOps interview questions, covering Linux boot processes, Kubernetes container execution, Git operations, Jenkins pipelines, DNS, networking, monitoring with Prometheus and Grafana, databases, SQL indexing, and collaboration and leadership scenarios.
This article presents a comprehensive list of 17 in‑depth DevOps interview questions asked by a Swedish company, covering Linux boot processes, Kubernetes internals, Git workflows, Jenkins pipelines, networking, monitoring, databases, Docker, and soft‑skill topics to help candidates prepare effectively.
This article compiles 128 high‑frequency Kubernetes interview questions covering architecture, components, networking, storage, security, and operational practices, providing a comprehensive study guide for candidates preparing for K8s‑related positions.
This article presents an extensive collection of Linux interview questions that span core concepts such as kernel fundamentals, memory management, process handling, interrupt mechanisms, filesystem structures, device driver development, and system performance tuning, providing a thorough preparation resource for candidates.
This article compiles 30 essential interview questions covering fundamentals, API pagination, HTTP status codes, JSON schema validation, CORS, test automation frameworks, pytest parametrization and fixtures, mocking, coverage testing, load and stress testing, Locust and JMeter usage, security testing such as SQL injection, XSS, OAuth2, JWT, CI/CD concepts with Jenkins, GitHub Actions, Travis CI, Docker, and Python code quality tools like static analysis, black formatting, unit testing, refactoring, and technical debt management, each accompanied by concise explanations and runnable code snippets.
In this detailed live interview transcript, a senior engineer questions a recent graduate on topics ranging from Redis data structures and system design to Java concurrency, evaluates the candidate's answers, and provides career advice and hiring recommendations.
This extensive guide covers essential C++ interview topics, including process/thread/coroutine differences, new vs new[], C++11 multithreading primitives, C++20 features, static and const usage, inline functions, object‑oriented principles, pointer vs reference, struct nuances, memory management techniques, common algorithms for selecting top elements, sorting complexities, linked‑list cycle detection, and multithreading fundamentals such as thread pools, lifecycle states, and synchronization mechanisms.
The article explains how to prepare for interview "if" questions about Binlog loss by describing Flink CDC's binlog extraction principles, possible recovery mechanisms, and practical strategies such as resetting offsets, extending log retention, and building offline‑online reconciliation pipelines.
In a recent The Verge interview, Bill Gates shares his perspectives on artificial intelligence, climate‑change solutions, misinformation, and the strategic direction of Microsoft, offering insights into how emerging technologies can address global challenges while balancing energy use and ethical concerns.
The guide equips candidates for backend interviews by covering essential networking (HTTP/HTTPS, TLS handshake, status codes, headers, OCSP, session resumption, CSRF), RPC frameworks, Java class-loading and JVM memory/GC, OS process/thread scheduling, Spring bean lifecycle, Redis caching pitfalls, and MySQL indexing and query optimization.
The article advises developers to avoid explicitly mentioning the use of scaffolding frameworks like RuoYi when describing project experience, suggesting they instead focus on the underlying implementation details and any custom improvements to demonstrate genuine technical contribution and avoid misconceptions about their capabilities.
This article explains why front‑end developers should master Nginx, covering login and interview scenarios, step‑by‑step containerized deployment with Docker, custom error pages, DNS caching issues, and practical tips to improve both production reliability and interview answers.
The article analyzes large‑model interview expectations, explaining why superficial training experience often hurts, how top‑conference papers are viewed, and why interviewers prioritize solid fundamentals and curiosity over mere resume items, offering concrete high‑impact experience examples.
This article walks through six common Go interview mistakes—incorrect function brace placement, map initialization without make, unexported struct fields for JSON, ineffective slice iteration, array versus slice parameter passing, and variable shadowing with :=—explaining each issue and providing the correct code examples.
MySQL’s pluggable storage‑engine architecture lets each table use a specific engine, with InnoDB (the default in MySQL 8.x) offering row‑level locking, ACID transactions, foreign‑key support, crash recovery, MVCC and a buffer pool, while MyISAM provides only table‑level locking, no transactions, and is suited mainly for read‑intensive workloads lacking recovery requirements.
This article compiles 19 practical Linux, security, networking, and Python interview questions covering command‑line techniques, system monitoring, load‑balancing, HTTP protocols, common vulnerabilities, TCP handshakes, TIME_WAIT optimization, and code snippets to help candidates prepare for sysadmin roles.
During a phone screening I noticed a candidate’s delayed yet suddenly polished answers, especially a textbook‑style SQL query, which matched GPT output exactly, leading me to suspect and confirm the use of AI in the interview.
After a summer internship, I compare the challenges of pursuing AI research versus software development, recount my friend's success in algorithm roles, and share personal insights on choosing a career path, interview preparation, and the true value of understanding over credentials.
A job seeker shares a puzzling experience where, after clearing three interview rounds and a background check at a major tech firm, the HR abruptly halted the offer due to salary constraints, highlighting common red flags and the uncertainty of verbal promises in recruitment.
This article compiles a comprehensive set of high‑frequency interview questions for Go backend positions, covering Go fundamentals, concurrency, runtime, microservices, Docker, Redis, MySQL, and related concepts, originally gathered from a candidate's experience at ByteDance.
This article provides a comprehensive guide to Java thread pools, covering common interview questions, core parameters, execution flow, lock mechanisms, custom queue implementations, rejection policies, best practices, monitoring strategies, and dynamic tuning with DynamicTp, all illustrated with code examples and diagrams.
In an exclusive SD Times interview, Luis Majano explains how BoxLang, a modern, modular and event‑driven JVM language, aims to revitalize dynamic language development with high performance, tiny core size, extensive tooling, and a thriving open‑source ecosystem.
In today's competitive job market, senior engineers face low interview pass rates due to higher hiring thresholds, mismatched interview skills, and inadequate headhunter support, but by understanding the role, refining resumes, mastering concise self‑introductions, showcasing confidence, staying current with tech trends, and following ten practical strategies, candidates can markedly improve their chances of success.
This article presents eight essential PHP 7 interview questions covering core feature innovations, performance improvements, scalar type declarations, null coalescing, the Throwable interface, the spaceship operator, anonymous classes, and enhanced error handling, with concise English explanations to help developers prepare for 2024 interviews.
This comprehensive guide reviews essential network and operating system concepts for technical interviews, covering TCP three‑way handshake, four‑way termination, OSI/TCP‑IP models, common protocols, socket communication, process vs thread, IPC mechanisms, memory management, page‑replacement algorithms, and HTTP/HTTPS differences.
The article explains that senior engineering interviews now have low pass rates due to higher hiring standards and insufficient interview skills, and provides ten concrete strategies—such as mastering the job description, refining the résumé, delivering concise introductions, showcasing leadership, staying current on technology, and post‑interview reflection—to dramatically improve senior candidates’ performance.
This article summarizes a Didi second‑round interview covering Redis persistence mechanisms, data structures, memory overflow and leak concepts, thread safety, process vs thread differences, deadlock prevention, TCP/UDP distinctions, and a couple of hand‑written algorithm problems, providing detailed explanations and code examples.
This article explains the theoretical and practical limits of Java String length, covering compiler restrictions, UTF‑8 encoding effects, constant‑pool constraints, runtime constructor limits, memory consumption, and the JDK9 optimization that changes internal storage.
This article compiles a set of Java interview questions covering the differences between ArrayList and LinkedList, the internal workings and resizing of HashMap, concurrency primitives like synchronized and ReentrantLock, JVM memory layout, garbage‑collection algorithms, reference types, and Redis persistence and distributed‑lock mechanisms.
This comprehensive guide covers 40 common C++ interview topics, including procedural vs. object‑oriented programming, differences between C and C++, static and const keywords, pointer versus reference semantics, memory allocation with malloc/new, function overloading, inheritance, virtual functions, templates, smart pointers, and modern C++11 features, providing clear explanations and example code.
This article shares a detailed ByteDance backend interview experience covering three rounds, summarizing essential topics such as Java HashMap internals, Spring circular dependencies, MySQL indexing, OS process/thread concepts, networking protocols, TLS handshake, HTTP/2 features, and common design patterns, providing concise explanations and practical tips.
This article compiles a comprehensive Java backend interview guide covering Redis fundamentals, thread creation methods, thread‑pool pitfalls, Spring ecosystem relationships, IoC/AOP principles, shallow vs deep copying, collection cloning, differences between interfaces and abstract classes, and string handling classes, providing concise explanations and code examples for each topic.
This guide details the various bank information technology roles, their classifications, required qualifications, typical interview processes, and salary ranges across major Chinese banks, highlighting the stability and competitiveness of these positions in the current job market.
This article compiles 20 frequently asked Python interview questions covering memory management, built‑in functions, identifiers, data structures, multithreading, closures, and other core concepts, providing concise explanations and practical examples to help candidates demonstrate solid Python fundamentals during technical interviews.
