We continue with a detailed study of Microsoft Azure stack as inferred from an introduction of Azure by Microsoft. We discussed Azure stack is a hybrid approach to cloud. Microsoft Azure has developer tools for all platform services targeting web and mobile, Internet of Things, Microservices, and Data + analytics, Identity management, Media streaming, High Performance Compute and Cognitive services. These platform services all utilize core infrastructure of compute, networking, storage and security. The Azure resource manager has multiple resources, role based access control, custom tagging and self-service templates.
1)  The compute services are made more agile with the offerings from a VM infrastructure, VM scale sets infrastructure, Container service orchestration and batch/Job orchestration. 
2) The Paas platform of Azure can span Azure and AWS both. It can occupy on-Premise, GCP and others as well Containers, serverless and Microservices are different forms of computing. 
3) Azure provides a data platform. The Paas platform of Azure can span Azure and AWS both. It can occupy on-Premise, GCP and others as well Containers, serverless and Microservices are different forms of computing. The consumers for this data transformation to actions are people as well as apps and automated systems.
4) Azure Networking is divided into regions that include inside the Azure region, connecting Azure regions, and geographic reach and internet ecosystems. The networking inside the Azure region already comes with security, performance, load balancing, virtual networks, cross-premises connectivity. Azure comes with accelerated networking

Azure allows vnets which help us define our network and our policies. it comes loaded with features such as dmz, backend subnets, customizable routes, etc discussed earlier. vnet to vnet traffic is via gateway. There is a full mesh network with vnets. The VNets can thus be peered.It can be setup easily and latency and throughput are same as in single peer

#codingexercise
Find if a given sorted subsequence exists in a binary search tree.
bool HasSequence(Node root, List<int> A)
{
int index = 0;
inOrderTraverse(root, A, ref index); // traverse in increasing order of elements
return index == A.Count;
}
void inOrderTraverse(Node root, List<int> A, ref int index)
{
if (root == NULL) return;
inOrderTraverse(root.left, A, ref index);
if (root.data == A[index])
    index++;
inOrderTraverse(root.right, A, ref index);
}