Flashcards
Elasticity
vs
Scalibility
Elasticity
It is also known as the automatic scaling of resources. It has the ability to dynamically scale
resources (like recovering from failures and continuing to function)
Scalability
Scalability refers to the ability to adjust resources according to demand. If you suddenly
experience peak traffic and your systems are overwhelmed, you can add more resources to
handle the increased demand.
Azure Reservations
- Azure Reservations help you save money by committing to one-year or three-year plans for
multiple products. Azure Reservation is a long-term contract for a variety of Azure services. - You pay the money monthly or in full upfront, but you can make almost 72% profit compared
to pay-as-you-go pricing. - This is good for businesses that have similar usage patterns most of the time.
Azure Spot Instances
- These make use of Microsoft’s leftover Compute Capacity.
- You can save almost 90% compared to pay-as-you-go pricing, but you should use Spot
Instances for mostly stateless periodic workloads. - This suggests that they should only be used when stopping in the middle of work is not a
problem. - Azure Spot instances - not suitable for a production-based environment.
Cloud Hierarchy
- Management Groups
- Subscriptions
- Resource Groups
- Resources
Virtual Network Peering (VNet Peering)
We can connect two virtual networks within Azure through a private network, which means we can connect over the private IP address space.This allows you to have seamless connectivity between two or more virtual networks in Azure.
There’s no need for a public IP address in VNet Peering.
- VNet peering: It connects virtual networks within the same Azure region.
- Global VNet peering: It connects virtual networks across Azure regions.
Redundancy in the primary region
- Locally redundant storage (LRS) copies data synchronously and replicates your storage account
three times within a single data center in the primary region. - Zone-redundant storage (ZRS) copies data synchronously and replicates your storage account
across three Availability Zones in the primary region.
Redundancy in the secondary region
- Geo-redundant storage (GRS) copies your data the same as LRS in the primary region and then
asynchronously copies your data to a single physical location in a secondary region that is
hundreds of miles away from the primary region. - Geo-zone-redundant storage (GZRS) copies your data the same as ZRS in the primary region
and then asynchronously copies your data to a single physical location in the secondary region.
Log Analytics Workspace
Log Analytics workspace is a centralized, unique environment for logging data from Azure Monitor
and other Azure services like - Microsoft Sentinel and Microsoft Defender for Cloud, etc.
It is the tool to write and run log queries on the monitor data in the Azure portal.
Application Insights
- Application Insights is a feature in Azure Monitor, used for monitoring your web applications
mainly for the in-depth analysis of the web applications. - Application Insights has the ability to monitor applications running in Azure, on-premises, or
in another cloud environment.
Do tags assigned to a resource group get inherited by the resources within the group?
No
What would a company use if they want to have an Enterprise messaging solution integrated with their existing application hosted in Azure?
Azure Service Bus
A company is planning to deploy resources to Azure. What tool provides a platform for defining the dependencies between resources so they’re deployed in the correct order?
Azure Resource Manager
Azure Monitor
vs
Log Analytics
Azure Monitor - Azure service used to collect, analyze, and visualize logs and metrics collected from Azure, on-prem, and multi-cloud resources
Log Analytics - Service used to edit and run log queries to perform statistical analysis and visualize the result
Azure HDInsight (Historical Data)
vs
Azure Synapse Analytics
HDInsight - Analyze streaming or historical data. Create data clusters, process and analyze big data, and develop solutions using the most popular open-source frameworks.
Azure Synapse Analytics - Synapse can be ‘paused’ and is consumption-based. Synapse incorporates many other Azure services for Analytics and Data Orchestration.
Azure Synapse Analytics can run Apache Spark, but HDInsights can integrate with
Apache Hadoop, Spark, Hive, LLAP, Kafka, Storm, and MS Learning Server.
Do availability zones protect from Region Failures or Data Center Failure?
Data Center Failure
