This blog post covers a brief overview of the topics covered and some common questions asked on Day 1 Live Interactive training on Azure Solutions Architect Certification[AZ-303].
On Day1 Live Session, We covered topics like Azure Networking for Beginners, IP Addressing, Azure Virtual Network, VNet Peering. We also covered hands-on Lab 7 out of our 20+ extensive labs of AZ-303 & 12+ Hands-on labs of AZ-304.
Azure Solutions Architect
Microsoft Azure Solution Architect will design and implement meaningful cloud-based applications and computing systems for different industries. Also have knowledge of Compute services, storage, databases, networking, virtualization, identity, security, disaster recovery, budgeting, and governance.
Azure Networking For Beginners
The networking services in Azure provide a variety of networking capabilities that can be used together or separately. These services provide connectivity between Azure resources, connectivity from an on-premises network to Azure resources, and branch-to-branch connectivity in Azure – Virtual Network (VNet), Azure Peering service.
Azure Virtual Network(VNet) is the fundamental building block for your private network in Azure. Virtual Network enables many types of Azure resources, such as Azure Virtual Machines (VM), to securely communicate with each other, over the internet, and on-premises networks.
Q1: What are the different ways to create a Virtual Network?
Ans. You can create a Virtual Network in Azure by using any of the followings methods:
1. Using Azure portal: Azure portal is a web-based, unified console that provides an alternative to command-line tools. With the Azure portal, you can manage your Azure subscription using a graphical user interface.
2. PowerShell: Azure PowerShell is a module that you add to Windows PowerShell or PowerShell Core that enables you to connect to your Azure subscription and manage resources.
3. Azure CLI: Azure CLI is a cross-platform command-line program that connects to Azure and executes administrative commands on Azure resources. It allows the execution of commands through a terminal using interactive command-line prompts or a script.
Q2: Are Virtual Networks Secure in Azure?
Ans. Virtual Networks are isolated from one another in the Azure cloud and have their own set of properties. Network Security Groups (NSGs) can be used to restrict inbound or outbound traffic flow. You can also deploy a virtual firewall from multiple vendors through the Azure Marketplace.
An Internet Protocol Address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP Address serves two main functions: host or network interface identification and local addressing.
Q3: Why is azure assigning IP 10.0.0.4 rather than 10.0.0.1?
Ans. Because x.x.x.0, x.x.x.1, x.x.x.2, x.x.x.3, x.x.x.255 IPs are reserved by Azure. So, these IP addresses are never assigned.
x.x.x.0: Network address
x.x.x.1: Reserved by Azure for the default gateway
x.x.x.2, x.x.x.3: Reserved by Azure to map the Azure DNS IPs to the VNet space
x.x.x.255: Network broadcast address
Q4: Can two Virtual Networks under the same subscription have the same CIDR blocks (10.0.0.0/ 16)?
Ans. Yes, you can have two Virtual Networks with the same address space under the same subscription.
But the address space of the First virtual network(10.0.0.0/ 16) will overlaps with the address space of the second virtual network(10.0.0.0/ 16), Virtual Networks with overlapping address space cannot be peered. If you intend to peer these virtual networks, change address space.
A subnet is a range of IP addresses in the virtual network. You can divide a virtual network into multiple subnets for organization and security. Each Network interface card connected in a virtual machine is connected to one subnet only.
Q5: Can we change the address space of the subnet after creation?
Ans. If no resources are deployed within the subnet, you can change the address range. If any resources exist in the subnet, you must either move the resources to another subnet or delete them from the subnet first.
Virtual Network Peering in Azure allows the traffic of one virtual network to communicate to another virtual network. The traffic between virtual machines in peered virtual networks uses the Microsoft backbone infrastructure. After creating virtual networks we moved towards configuring Virtual Network Peering using the Azure portal.
Q6: Virtual Networking Peering connection is unidirectional or bidirectional?
Ans. The current version of the Azure portal creates the bidirectional peering automatically. However, you can disable connection from destination to source in the peering settings.
Q7: Can one Virtual Network do peering with more than one Virtual Network?
Ans. Yes, A single Virtual Networks can be peered with multiple Virtual Networks. Currently, the limit of Virtual network peering’s per virtual network is 500. The networks can belong to the same subscription, different deployment models in the same subscription, or different subscriptions.
Q8: Are there any bandwidth limitations for peering connections?
Ans. No, Virtual Network peering, whether local or global, does not impose any bandwidth restrictions. Bandwidth is only limited by the Virtual Machine or the compute resource.
Q9: In Virtual Network peering specify the role of the region?
Ans. We have two types of Virtual Network Peering based on region:
VNet peering – connecting VNets within the same Azure region
Global VNet peering – connecting VNets across Azure regions
If you need connectivity within a region (E.g. West Central US) use Default Vnet peering and if need connectivity between two regions (E.g. West Central US & West US) use Global Virtual Network peering.
Q10: How much do Virtual Network peering links cost?
Ans. There is no charge for creating a Virtual Network peering connection. Data transfer across peering connections is charged. Inbound and outbound traffic is charged at both ends of the peered networks. Virtual Network Peering within the same region is less costly than Global Virtual Network Peering.
Azure Subscriptions are a logical unit of Azure services that are linked to an Azure account. In order to take advantage of Azure’s cloud-based services, you must have a subscription as it serves as a single billing unit for Azure resources used in that account.
Q11: Will a free Azure subscription allow us to complete all the labs in this course?
Ans. Yes, an Azure-Free trial account/free Azure subscription will allow you to complete all the labs of AZ-303 & AZ-304 training. Deleting resources after testing is required.
If you are part of our training program, we will also provide you Azure Pass from Microsoft. On top of the Azure free trial account, You can use these extra credits for completing Labs.
Quiz Time (Sample Exam Questions)!
With my Microsoft Azure Solutions Architect training program, we cover 220+[AZ-303] & 150+[AZ-304] sample exam questions to help you prepare for the certification AZ-303 & AZ-304.
Check out one of the questions and see if you can crack this…
Ques. There is a requirement to ensure that virtual machines hosted in Virtual Networks can communicate across both virtual networks by using their private IP address. Which of the following can be used to fulfill this requirement?
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