Rust.

Memory-safe systems language for performance-critical services. Covers 10 sub-skills.

• Rust · 1 of 3

  Enums & Pattern Matching

  In an Option, which variant stands for the absence of any value?

  ANullBZeroCNoneDVoid

• Rust · 2 of 3

  Macros & Metaprogramming

  Which of these is a fragment specifier available inside a macro_rules! matcher?

  AexprBenumCautoDvoid

• Rust · 3 of 3

  Unsafe & FFI

  What type should you use for C's int in Rust FFI?

  AThe platform integer alias, which maps to the right width per targetBWhichever integer the struct declares, since the width is per fieldCA fixed thirty-two bit integer, which is what the other language usesDA pointer-sized integer, since the other language sizes it that way