References:

https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/overview

https://docs.microsoft.com/en-us/azure/virtual-machines/windows/regions

Azure automatically routes traffic between subnets in a virtual network. Therefore, all virtual machines in a virtual network can connect to the other virtual machines in the same virtual network. Even if the virtual machines are on separate subnets within the virtual network, they can still communicate with each other.

To ensure that a virtual machine cannot connect to the other virtual machines, the virtual machine must be deployed to a separate virtual network.

Reference:

https://docs.microsoft.com/en-us/azure/virtual-network/virtual-networks-udr-overview

Memorise:

azure synapse analytics = Warehouse

Azure cosmos = even larger than the globe (global) : cosmos

Azure HDInsight = Hadoop

Azure synapse analytics used to be called Azure SQL Data Warehouse:

https://azure.microsoft.com/en-us/blog/azure-sql-data-warehouse-is-now-azure-synapse-analytics/

Azure cosmos is the only database that supports NoSQL:

https://www.sqlshack.com/learn-nosql-in-azure-an-overview-of-azure-cosmos-db/

Azure HDInsight :

https://docs.microsoft.com/en-us/azure/hdinsight/hdinsight-hadoop-provision-linux-clusters

The answer of 1st question should be NO.

from Azure document: "Only the hot and cool access tiers can be set at the account level. The archive access tier can only be set at the blob level."

See: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers

Hot : Optimized for storing data that is accessed frequently.

Cool : Optimized for storing data that is infrequently accessed and stored for at least 30 days.

Archive : Optimized for storing data that is rarely accessed and stored for at least 180 days with flexible latency requirements, on the order of hours.

--> NO, YES, NO

Availability zones expand the level of control you have to maintain the availability of the applications and data on your VMs. An Availability Zone is a physically separate zone, within an Azure region. There are three Availability Zones per supported Azure region.

Each Availability Zone has a distinct power source, network, and cooling. By architecting your solutions to use replicated VMs in zones, you can protect your apps and data from the loss of a datacenter. If one zone is compromised, then replicated apps and data are instantly available in another zone.

Reference:

https://docs.microsoft.com/en-us/azure/virtual-machines/availability

Reference:

https://docs.microsoft.com/en-us/azure/cost-management-billing/manage/ea-azure-marketplace

Availability Zones are physically separate locations within a single Azure region. Each Availability Zone is made up of one or more datacenters equipped with independent power, cooling, and networking.

Reference:

https://azure.microsoft.com/en-gb/global-infrastructure/regions/

Box 1: Azure Functions -

Azure Functions allows you to implement your system's logic into readily available blocks of code called "functions". Different functions can run anytime you need to respond to critical events.

Box 2: Azure Logic Apps -

"Logic Apps" is always stateful. Azure functions are stateless by default but they CAN be stateful by using durable functions.

Box 3: Azure Logic Apps -

Azure Logic Apps is a cloud-based platform for creating and running automated workflows that integrate your apps, data, services, and systems.

Reference:

https://docs.microsoft.com/en-us/azure/logic-apps/logic-apps-overview

https://docs.microsoft.com/en-us/azure/azure-functions/functions-overview

In this question keyword is "developer".

You can install the Az PowerShell module locally on Windows, macOS, and Linux. It can also be used from a browser through Azure Cloud Shell or inside a

Docker container.

Reference:

https://docs.microsoft.com/en-us/powershell/azure/what-is-azure-powershell?view=azps-6.6.0

https://serverfault.com/questions/323973/how-do-i-access-the-windows-azure-management-portal-from-ubuntu