Recently, the ethereum blockchain underwent major upgrades to enhance its scalability, efficiency, and security. this solves the impossible triangle of the blockchain – balancing security, decentralization, and scalability. and these major upgrades are important to continue to improve the performance of the network while keeping the cost of operations low.The upcoming Ethernet Cancun-Deneb (“Dencun”) hard fork upgrade will be deployed on the main network on March 13.The upgrade will optimize network scalability, efficiency and security through various Ethernet Improvement Proposals (“EIPs”), in particular the EIP-4844 proposal for native forks, which is designed to reduce handling fees and improve network scalability.The Dencun upgrade marks the dawn of “The Surge” era in the Ethernet roadmap, paving the way for massive scaling via layer-two rollups that will make Ethernet more accessible and user experience better, driving its wider adoption by a variety of industries, including DeFi 2.0.Advantages of Layer 2 RollupsLayer 2 Rollups increase the scalability and efficiency of Ethernet by trading off-chain while retaining the security of the main Ethernet blockchain (Layer-1). they have the following characteristics:Off-chain transactions: Off-chain transactions enable faster, more efficient throughput and take up no space on the Ethernet blockchain.Transaction Aggregation: Aggregating or bundling the results of multiple transactions into a compressed form of transaction data after execution down the chain.Publish to the main chain: The compressed transaction data or rollup is then published to the Ethernet main chain (Layer-1).Data Availability: Despite off-chain processing, the primary Ethernet blockchain ensures that all participants can access and validate the data associated with a transaction.Security: Layer 2 Rollups maintain the security of the Ethernet network through a variety of cryptographic techniques