Azure ExpressRoute plays a crucial role by providing a private, dedicated network connection, enhancing the security and performance of connecting enterprise networks to Azure services.

Azure IoT Hub is designed for real-time communication and control of IoT devices, making it ideal for monitoring and managing a large fleet of vehicles.

For secure transactions in Azure Blockchain Service, Asymmetric cryptography is commonly employed. It ensures secure data exchange through the use of public and private keys.

Azure Policy is a tool used for enforcing organizational standards and ensuring compliance by defining and applying policies across Azure resources.

Azure ExpressRoute provides a dedicated and private connection to Azure through a fiber network, ensuring enhanced data privacy and security.

Azure Blockchain Service achieves consensus in permissioned networks using Practical Byzantine Fault Tolerance (PBFT), ensuring secure and reliable transaction validation.

Azure Quantum plays a vital role in advancing Machine Learning at Scale through the integration of quantum machine learning algorithms, enabling more efficient and powerful computations.

Azure's Network Security Group (NSG) enhances network security by allowing traffic filtering at the subnet level, providing granular control over inbound and outbound traffic.

The Log Analytics workspace in Azure serves as a central repository for storing log data collected from various sources for analysis and insights.

Azure Databricks is an analytics platform optimized for big data and machine learning workloads, offering high-performance computing and large-scale data processing capabilities.