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Why might an application choose a binary serialization format (like bincode, also built on Serde) over JSON for internal service-to-service communication?

Questions in this quiz
  1. Why might an application choose a binary serialization format (like bincode, also built on Serde) over JSON for internal service-to-service communication?
  2. Why does deriving Serialize/Deserialize at compile time (via Rust's derive macros) offer a performance advantage over reflection-based serialization used in some other languages?
  3. What is Serde?
  4. What does `#[serde(flatten)]` do when applied to a nested struct field?
  5. What does `#[serde(skip_serializing_if = "Option::is_none")]` commonly accomplish on an `Option<T>` field?
  6. What is the benefit of using `#[serde(rename_all = "camelCase")]` on a struct, compared to renaming every field individually?
  7. What is the purpose of `#[serde(deny_unknown_fields)]` on a struct?
  8. What does the `#[serde(rename = "...")]` field attribute allow?
  9. How would a Rust program typically deserialize a JSON string into a struct using serde_json?
  10. What is the relationship between Serde itself and a format-specific crate like `serde_json`?
  11. Why is Serde's design (a generic core plus separate format crates) considered efficient compared to a framework tightly coupled to one specific format?
  12. What is `serde::Value` (from serde_json, as `serde_json::Value`) used for?
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