Microsoft AZ-301 - Questions & Answers

Scenario: Collect Windows security logs from all the middle-tier servers and retain the logs for a period of seven years.

The Azure Diagnostics agent should be used when you want to archive logs and metrics to Azure storage.

References:
https://docs.microsoft.com/en-us/azure/azure-monitor/platform/agents-overview

https://docs.microsoft.com/en-us/azure/sql-database/sql-database-long-term-backup-retention-configure

Scenario:
1. The back-end data store is implemented as a Microsoft SQL Server 2014 database.
2. If a data center fails, ensure that the payment processing system remains available without any administrative intervention.

Note: Auto-failover groups is a SQL Database feature that allows you to manage replication and failover of a group of databases on a SQL Database server or all databases in a managed instance to another region. It is a declarative abstraction on top of the existing active geo-replication feature, designed to simplify deployment and management of geo-replicated databases at scale.

References:
https://docs.microsoft.com/en-us/azure/sql-database/sql-database-auto-failover-group

References:
https://docs.microsoft.com/en-us/azure/sql-database/sql-database-long-term-backup-retention-configure

Scenario:
1. Ensure that the number of compute nodes of the front-end and the middle tiers of the payment processing system can increase or decrease automatically based on CPU utilization.
2. Ensure that each tier of the payment processing system is subject to a Service Level Agreement (SLA) of 99.99 percent availability.
With Azure Load Balancer, you can scale your applications and create high availability for your services.
Load Balancer supports inbound and outbound scenarios, provides low latency and high throughput, and scales up to millions of flows for all TCP and UDP applications.
Azure Load Balancer is available in two SKUs: Basic and Standard. There are differences in scale, features, and pricing. Standard SLA guarantees a 99.99% for data path with two healthy virtual machines.
Basic SLA does not exist.

References:
https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-overview

https://docs.microsoft.com/en-us/azure/azure-monitor/platform/diagnostics-extension-overview