Question 1

What Rust training courses does JBI Training offer?

Accepted Answer

JBI Training offers a three-day Rust training course available as a scheduled classroom session in London, as a live online instructor-led programme, or as a customised onsite programme for development teams. The course covers Rust from the ground up — including the language's unique ownership and borrowing model, safety features, concurrency, and practical application development using Cargo, Rust's integrated package manager and build tool. It is suitable for experienced developers coming from C, C++, Java, Python, or other languages who want to learn Rust for systems programming, embedded development, cloud-native services, or performance-critical applications.

Question 2

What is Rust and what makes it different from other systems programming languages?

Accepted Answer

Rust is a multi-paradigm, general-purpose programming language designed for performance, reliability, and memory safety. It was first released by Mozilla Research and is now maintained by the Rust Foundation. What makes Rust distinctive is its approach to memory safety — it guarantees memory safety at compile time through a borrow checker that validates how references to data are used, without relying on a garbage collector or runtime. This means Rust can deliver the performance of C and C++ while eliminating entire categories of bugs — including null pointer dereferences, buffer overflows, use-after-free errors, and data races in concurrent code — that are common sources of security vulnerabilities in lower-level languages. Rust has been voted the most admired programming language by developers in the Stack Overflow Developer Survey for multiple consecutive years.

Question 3

What is Rust's ownership and borrowing model and why does it matter?

Accepted Answer

Rust's ownership system is the core mechanism through which it achieves memory safety without a garbage collector. Every value in Rust has a single owner — the variable that holds it — and when that owner goes out of scope, the value is automatically dropped and its memory freed. Borrowing allows other parts of a program to reference a value without taking ownership, subject to strict rules enforced at compile time: either one mutable reference or any number of immutable references may exist at a given time, but not both simultaneously. This prevents data races and use-after-free errors at compile time rather than at runtime. Understanding ownership and borrowing is the foundational skill for Rust development and is a central focus of JBI's Rust training course.

Question 4

What is Cargo and what role does it play in Rust development?

Accepted Answer

Cargo is Rust's official package manager and build tool. It handles creating new Rust projects, managing dependencies (called crates), building and compiling code, running tests, and generating documentation. Cargo also integrates with the Rust ecosystem's central package registry (crates.io), making it straightforward to add, update, and manage third-party libraries. Additional tools that complement Cargo include Rustfmt (an auto-formatter that enforces consistent code style), Clippy (a linter that identifies common mistakes and non-idiomatic code), and Rustdoc (a documentation generator). JBI's Rust course covers the full Cargo toolchain as part of establishing a professional Rust development workflow from day one.

Question 5

What is Rust used for in professional software development?

Accepted Answer

Rust is used across a wide range of application domains where performance, reliability, and memory safety are critical. Key use cases include systems programming and operating system components, embedded and bare-metal development where no runtime or garbage collector is acceptable, WebAssembly for high-performance browser and edge computing applications, command-line tools and developer infrastructure, network services and high-performance APIs, blockchain and distributed ledger systems, game engines and graphics programming, and cloud-native infrastructure tooling. Major projects written in Rust include components of the Linux kernel, the Servo browser engine, parts of the Windows operating system, Cloudflare's networking infrastructure, AWS's Firecracker virtualisation platform, and the Deno JavaScript runtime.

Question 6

How does Rust compare to C++ and when should I choose one over the other?

Accepted Answer

Rust and C++ occupy similar performance territory — both compile to native machine code with no garbage collector and are suited to systems programming, embedded development, and performance-critical applications. The key difference is in safety and developer experience. C++ gives developers complete control but places the burden of memory management and concurrency safety entirely on the programmer, and memory safety bugs in C++ are a leading cause of critical security vulnerabilities. Rust's compiler enforces memory and thread safety at compile time, eliminating these bugs by design — at the cost of a steeper initial learning curve as developers adapt to the ownership model. For new projects where safety is a priority and the team is willing to invest in learning Rust, Rust is increasingly the preferred choice. For organisations with large existing C++ codebases, Rust can be introduced incrementally as Rust and C++ can interoperate through Rust's Foreign Function Interface (FFI).

Question 7

Why is Rust increasingly used in security-critical and financial applications?

Accepted Answer

Research from Microsoft, Google, and the NSA has consistently found that approximately 70% of critical security vulnerabilities in software written in memory-unsafe languages such as C and C++ are caused by memory safety errors — including buffer overflows, use-after-free bugs, and null pointer dereferences. Rust eliminates this entire class of vulnerabilities at the compiler level, making it highly attractive for applications where security is paramount — including financial trading systems, blockchain infrastructure, payment processing, cryptographic implementations, and network security tools. The US government's cybersecurity agency CISA has formally recommended that organisations adopt memory-safe languages such as Rust for new development in security-sensitive contexts.

Question 8

Is Rust suitable for web development and backend services?

Accepted Answer

Yes. Rust has a growing ecosystem of web frameworks — including Axum, Actix Web, and Rocket — that enable developers to build high-performance HTTP APIs and web services. Rust is particularly well-suited to backend services that require very high throughput, low latency, or efficient resource usage, such as real-time data processing pipelines, high-frequency trading APIs, and edge computing services. Rust also compiles to WebAssembly, enabling Rust code to run in web browsers at near-native performance — making it useful for computationally intensive browser-based applications. While Rust's web ecosystem is less mature than those of Go, Java, or Node.js, it is growing rapidly and is increasingly used in production web infrastructure.

Question 9

Can Rust training be customised for a corporate development team?

Accepted Answer

Yes. JBI's Rust training course can be delivered as a customised onsite or online programme for corporate development teams. Content can be tailored to the team's background — for example, developers coming from C++ can receive training that emphasises the differences and similarities between the two languages, while teams adopting Rust for embedded development or WebAssembly can receive training focused on those specific application domains. The course can also be extended or combined with related topics such as systems programming, concurrency, or Rust for web services. JBI has delivered systems programming and low-level development training for engineering teams at organisations including the BBC, NHS, RBS, Cisco, Sky, and EDF.

Question 10

Is the Rust training course kept up to date with the latest Rust releases and ecosystem developments?

Accepted Answer

Yes. Rust follows a six-weekly stable release cycle and the language and its ecosystem continue to evolve rapidly. JBI's Rust training content is continuously reviewed and updated to reflect the latest stable Rust release, changes to the standard library, new language features, updates to the Cargo toolchain, and developments in the broader Rust ecosystem including popular crates, async Rust patterns, and Rust's expanding role in operating system development and AI infrastructure tooling. Delegates learn skills that reflect how Rust is currently used in professional development environments.

Rust training course

Learn Rust by building safe, efficient apps with Cargo, concurrency, reusable objects, and Python Pandas integration—plus key tools like Clippy and rustdoc.

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