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52 cheat sheets · 3 interview sets

Developer & testing cheat sheets

52 cheat sheets and 3 sets of interview questions, for performance testing, DevOps and scripting. All free to read — no signup.

All 52 cheat sheets + the interview pack — £14.99  — A4 PDFs, light background, actually printable. Future updates included.

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Interview questions

JMeter interview questions

Questions with answers, and what the interviewer is actually testing.

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Interview questions

Performance testing interview questions

Questions with answers, and what the interviewer is actually testing.

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Interview questions

k6 interview questions

Questions with answers, and what the interviewer is actually testing.

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In the PDF bundle
Performance & Testing

JMeter

Apache JMeter commands, functions, shortcuts, and CLI options

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In the PDF bundle
Performance & Testing

Gatling

Gatling DSL syntax, simulations, feeders, and assertions

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In the PDF bundle
Performance & Testing

k6

k6 scripting, metrics, thresholds, and scenarios

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In the PDF bundle
Performance & Testing

LoadRunner

VuGen scripting, correlation, and Controller settings

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Performance & Testing

LoadRunner to JMeter and k6

Every VuGen construct and what it becomes in JMeter and k6 — correlation, parameters, transactions, run-time settings, and what does not carry across

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In the PDF bundle
Performance & Testing

Locust

Python-based load testing with distributed execution

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In the PDF bundle
Performance & Testing

Artillery

Node.js load testing with YAML scenarios

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In the PDF bundle
Performance & Testing

wrk

HTTP benchmarking with Lua scripting

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Performance & Testing

Apache Bench

Quick HTTP server benchmarking (ab)

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In the PDF bundle
Performance & Testing

Vegeta

Go-based HTTP load testing tool

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Performance & Testing

Performance Testing

Core concepts, test types, and best practices

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In the PDF bundle
Observability

Grafana

Dashboard creation, panels, and alerting

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In the PDF bundle
Observability

Prometheus

PromQL queries, metrics, and alerting rules

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In the PDF bundle
Observability

InfluxDB

Time series database queries and retention

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In the PDF bundle
Observability

ELK Stack

Elasticsearch, Logstash, and Kibana essentials

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DevOps & Cloud

Docker

Container commands, Dockerfile, and compose

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DevOps & Cloud

Kubernetes

kubectl commands, pods, deployments, and services

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In the PDF bundle
DevOps & Cloud

AWS CLI

Common AWS commands for EC2, S3, and more

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In the PDF bundle
DevOps & Cloud

Terraform

HCL syntax, commands, and state management

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DevOps & Cloud

Git

Version control commands and workflows

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Languages & Scripting

Bash

Shell scripting, variables, and control flow

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Languages & Scripting

Linux

Essential commands for system administration

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Languages & Scripting

Python

Python syntax, data structures, and common patterns

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In the PDF bundle
Languages & Scripting

jq

JSON processing and transformation

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Languages & Scripting

cURL

HTTP requests, headers, and authentication

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Languages & Scripting

Regex

Regular expression patterns and syntax

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In the PDF bundle
Languages & Scripting

sed & awk

Text processing and transformation

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API & Database

Postman

API testing, collections, and environments

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API & Database

SQL

Query syntax, joins, and aggregations

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In the PDF bundle
API & Database

Redis

Commands for keys, strings, hashes, and more

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In the PDF bundle
API & Database

MongoDB

Document database queries and aggregation

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In the PDF bundle
API & Database

PostgreSQL

Advanced RDBMS features and queries

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In the PDF bundle
API & Database

GraphQL

API query language and schema design

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In the PDF bundle
API & Database

OpenAPI

OpenAPI/Swagger specification reference

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In the PDF bundle
API & Database

gRPC

High-performance RPC framework

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In the PDF bundle
Performance & Testing

Playwright

E2E testing with Microsoft Playwright

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In the PDF bundle
Performance & Testing

Cypress

JavaScript end-to-end testing framework

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In the PDF bundle
Observability

OpenTelemetry

Unified observability standard

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In the PDF bundle
Observability

Jaeger

Distributed tracing and monitoring

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In the PDF bundle
Observability

Datadog

Cloud monitoring and APM platform

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In the PDF bundle
DevOps & Cloud

GitHub Actions

CI/CD workflows and automation

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In the PDF bundle
DevOps & Cloud

Helm

Kubernetes package manager

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In the PDF bundle
DevOps & Cloud

ArgoCD

GitOps continuous delivery for K8s

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In the PDF bundle
DevOps & Cloud

Ansible

IT automation and configuration management

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In the PDF bundle
DevOps & Cloud

Vault

HashiCorp secrets management

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In the PDF bundle
DevOps & Cloud

Azure CLI

Microsoft Azure command-line interface

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In the PDF bundle
DevOps & Cloud

Google Cloud CLI

gcloud commands for GCP

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In the PDF bundle
Languages & Scripting

TypeScript

Typed JavaScript superset

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In the PDF bundle
Languages & Scripting

Go

Go programming language essentials

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In the PDF bundle
Languages & Scripting

Node.js

Node.js runtime and npm commands

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In the PDF bundle
Security

Trivy

Container vulnerability scanner

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In the PDF bundle
Security

OWASP ZAP

Web application security testing

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