20 Questions
What is the purpose of Azure Virtual Networks (VNets)?
To define network spaces with IP address ranges segmented into subnets.
What are the key properties of a Virtual Network?
Name, Location, Address Space, DNS Settings, Subnets, Peerings.
What are the restrictions on naming a Virtual Network?
Must be unique within the resource group, 2-64 characters, start and end with a letter, number, or underscore.
How does VNet Peering enable communication between VMs in different VNets?
Using private IP addresses over Microsoft's infrastructure.
What does a Subnet's Address Range specify?
The subnet's IP address range in CIDR notation.
What is the purpose of a Network Security Group in a Subnet?
To control inbound and outbound traffic flows.
How does Route Table in a Subnet impact traffic routing?
It overrides default routes for sending traffic to specific destinations.
What is the significance of Service Endpoints in a Subnet?
They provide direct routes to Azure PaaS services.
What does Delegations allow in a Subnet?
Allows subnets to be used by specific Azure services.
What is the difference between Local and Global VNet Peering?
Local VNet Peering is within the same region, while Global VNet Peering can be across regions.
What is the purpose of a VNet Gateway in Azure networking?
Required for VNet peering, avoids cost, throughput limitations, and complexity associated with additional VNet gateways
How are private IP addresses configured within Azure networking?
Configured within IP configurations of the network interface, with the first private IP typically set at .4
What are the tiers available for Public IP addresses in Azure networking?
Basic (static/dynamic, open by default) and Standard (static, closed by default, supports zones)
What is the purpose of Source Network Address Translation (SNAT) in Azure networking?
Used for outbound traffic from a VM's private IP to the public IP, without requiring a public IP for outbound Internet traffic
How do Service Endpoints function in Azure networking?
Integrates Azure PaaS services into VNets via Microsoft Azure backbone network, can be enabled on multiple subnets
What is the purpose of Private Endpoints in Azure networking?
Establish private connections between supported Azure services and VNets using private IP addresses and links
How are DNS Zones managed in Azure networking?
Managed by Azure DNS, stores DNS records for a domain, child zones treated separately
What is the function of DNS Labeling in Azure networking?
Configuring DNS labels for Azure public IP addresses, can be set in IP address resource or Azure DNS
How are Route Tables and User-Defined Routes (UDRs) used in Azure networking?
Useful for routing traffic through network virtual appliances, support next hop types like Virtual Appliance, Internet, etc.
What challenges are associated with Custom DNS in Azure networking?
Necessity to register each VM in DNS services, possibility of configuring dynamic DNS queries for VM registration
Learn about Azure Virtual Networks (VNets) and their importance in Azure networking. Understand how to define network spaces, segment them into subnets, and set up Network Security Groups (NSGs) and user-defined routes. Explore key properties of Virtual Networks like name uniqueness and location association.
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