Layer 2 Scaling & Rollups

How rollups and other Layer 2 systems scale transaction throughput while still inheriting the base chain's security guarantees.

Read

47 min

Practice MCQs

25

Interview QA

25

Edition

v3

Editorial status

Reviewed

Relevant for

Blockchain Developer

Scope: Ethereum rollup architecture and EIP-4844; OP Stack derivation, deposits, withdrawals, fault proofs and interoperability specifications reviewed 2026-09-04; Arbitrum Nitro architecture (protocol-specific parameters must be verified at deployment).