# Networking Resources ## Networking Services Covered: * Virtual Networks * VPN Gateway * VPnet Peering * ExpressRoute ## Types of Networking Services: * Connectivity Services * Protection Services * Delivery Services * Monitoring Services ## Connectivity: **Virtual Network:** Emulating a physical network Microsoft Global Network already exists so a virtual network is just software configuration **Virtual Private Network (VPN):** connecting two networks as if they were on the same network, uses a Network Gateway **ExpressRoute:** high-speed private connection to Azure ## Protection - Security: **DDos Protection:** Distributed denial of Service attack protection **Azure Firewall** **Network Security Groups:** - Access control list **Private Link** ## Delivery - Not on the Exam: **Load Balancer:** distribute traffic evenly between multiple backend servers **Application Gateway:** a higher-level of loadbalancer with an optional firewall **Content Delivery Network (CDN):** stores common static files on the edge, closer to the users for (percived) improved performance **Azure Front Door Service:** a load balancer, CDN and firewall all-in-one ## Monitoring - Management Tools: **Network Watcher** **ExpressRoute Monitor** **Azure Monitor** --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.arkannis.net/cloud/azure/courses/az900-course/core-resources-available/networking-resources.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.