Questions on specific technologies, from networking to Kubernetes, and how the technical rounds themselves work: live coding, take-home assignments, system design and AI-assisted coding interviews.
23 articles
Snowflake interview questions with short answers from the Snowflake documentation: the architecture (storage, compute and cloud services), virtual warehouses and scaling, micro-partitions and clustering, Time Travel and Fail-safe, zero-copy cloning, loading data, semi-structured data, security, cost control, and scenario-based questions for experienced data engineers.
Kubernetes interview questions with answers, from basics to experienced: cluster architecture (control plane and nodes), Pods, Deployments and rolling updates, StatefulSets, DaemonSets and Jobs, Services and Ingress, ConfigMaps and Secrets, storage, probes, resource requests and limits, autoscaling, scheduling, RBAC and network policies, Helm and GitOps, troubleshooting scenarios (CrashLoopBackOff, Pending, ImagePullBackOff, OOMKilled) with kubectl commands, and experienced-level questions.
Unix and Linux interview questions with answers: Unix vs Linux, the kernel and shell, the file system, permissions (chmod, umask, setuid, sticky bit), processes and signals, essential commands (find, grep, sed, awk, xargs), pipes and redirection, hard vs soft links, shell scripting, cron, networking commands, one-liner exercises, and troubleshooting scenarios such as a full disk or high CPU.
Web API interview questions with short answers: REST principles, HTTP methods with safe and idempotent semantics (RFC 9110), status codes (401 vs 403, 409, 429), versioning, pagination, authentication with OAuth 2.0 and JWT, the OWASP API Security Top 10, ASP.NET Core Web API (controllers, [ApiController], minimal APIs), performance, and scenario questions for experienced developers.
Jenkins interview questions with short answers from the Jenkins documentation: pipeline as code and the Jenkinsfile, declarative vs scripted pipelines, the controller and agents, stages, post conditions, when, parallel and matrix, shared libraries, credentials and security, plugins, scaling, and scenario questions for experienced DevOps engineers.
Which companies now let you use AI in coding interviews (Meta, Google, Canva), what those rounds look like, what interviewers score, and how to prepare, plus what to do when AI isn't allowed.
DevOps engineer interview questions with short answers: CI/CD pipelines, deployment strategies, infrastructure as code, containers and Kubernetes, monitoring and observability, DORA's software delivery metrics, incident response, security in the pipeline, cloud cost, and scenario questions.
Python interview questions for junior developers and freshers with short answers and code: data types, mutability, lists vs tuples, dictionaries, the mutable default argument trap, comprehensions, functions, classes, exceptions, generators, common coding exercises, and how to prepare.
SAS interview questions with short answers and code: the DATA step and PROC steps, libraries, SET and MERGE, WHERE vs IF, how SAS stores dates, RETAIN and FIRST./LAST., INPUT vs PUT, PROC SORT, PROC TRANSPOSE, PROC SQL, macros, debugging, and what the Base Programming certification covers.
Hadoop interview questions with short answers from the Apache Hadoop documentation: HDFS architecture (NameNode, DataNodes, blocks, replication and rack-aware placement, heartbeats, safemode, FsImage and EditLog), YARN (ResourceManager, NodeManager, ApplicationMaster), MapReduce (shuffle, sort, combiners), the small files problem, the ecosystem, and scenario questions for developers and administrators.
Apache Kafka interview questions with short answers: events, topics and partitions, ordering, consumer groups and offsets, replication and in-sync replicas, delivery semantics, producer settings, retention and compaction, performance tuning, and scenario questions for experienced engineers.
Apache Spark interview questions with short answers and PySpark code: RDDs vs DataFrames, transformations and actions, lazy evaluation, the driver and executors, narrow vs wide transformations and shuffles, partitioning, caching, joins and data skew, Spark SQL and the optimizer, Structured Streaming, and performance tuning scenarios.
.NET Core and ASP.NET interview questions with short answers: .NET versions and support (LTS and STS), the runtime, C# essentials, ASP.NET Core middleware, dependency injection lifetimes, configuration, classic ASP.NET vs ASP.NET Core, MVC, Razor Pages and Blazor, model binding and filters, Entity Framework Core, async, testing, and senior-level design questions.
C++ interview questions with short answers and code: pointers vs references, the stack and heap, RAII, smart pointers (unique_ptr, shared_ptr, weak_ptr), the rule of zero and five, move semantics, virtual functions and destructors, const, templates, the STL, undefined behavior, and concurrency, with rules from the C++ Core Guidelines.
SSIS (SQL Server Integration Services) interview questions with short answers: control flow vs data flow, containers and precedence constraints, Lookup cache modes, blocking transformations, error handling, slowly changing dimensions, incremental loads, performance tuning, the SSISDB catalog and deployment, plus scenario questions for experienced developers.
Java 8 interview questions with short answers and code: lambdas, functional interfaces, method references, default methods, the Stream API (map, filter, reduce, collect, groupingBy), intermediate vs terminal operations, parallel streams, Optional, the java.time API, CompletableFuture, plus why Java 8 still comes up in 2026.
Splunk interview questions with short answers: forwarders, indexers and search heads, the data pipeline, indexes and buckets, SPL (stats, eval, timechart, rex, lookups), stats vs transaction, knowledge objects, search performance, troubleshooting missing data, and questions for SOC analysts, admins and developers.
How to approach a take-home assignment for coding, data, product or case study interviews: clarify the scope, timebox, what reviewers look for, how to write the README, how to present it in the follow-up interview, and when to push back.
How system design interviews work, what interviewers look for (from Meta's and Amazon's own guides), a six-step framework with a worked example, the core concepts to know, common questions, and how to use AI tools to practice without fooling yourself.
How to prepare for and pass a HackerRank coding test: how the platform works (from HackerRank's candidate FAQs), hidden test cases, proctoring, the common problem patterns, a timeboxing plan, and what to do when you're stuck.
How to answer “Tell me about a time you solved a complex problem” and other problem-solving interview questions, with the STAR structure, sample answers for IT and non-technical roles, how to explain something complex simply, and mistakes to avoid.
What a CoderPad interview looks like, how to practice in the free sandbox, how its AI Assist works when an interviewer turns it on, and how to talk through code so the interviewer can follow.
45 networking interview questions with short, accurate answers: fundamentals, subnetting, switching, routing, security and troubleshooting scenarios, for network engineer, admin and IT support interviews.
