Fix grammar and add new content (#52)

AZ-900 Microsoft Azure Fundamentals/1.4. Cloud Compliance.md

@@ -20,7 +20,7 @@
 - CSA = Cloud Security Alliance
 - Independent third-party assessment of a cloud provider's security posture
 - Ensures:
-  - ISO/IEC 27001 certificationis achieved
+  - ISO/IEC 27001 certification is achieved
   - Criteria specified in the Cloud Controls Matrix (CCM) are met
     - Also assesed against the STAR Capability Maturity Model for the management of activities in CCM control areas.
 

AZ-900 Microsoft Azure Fundamentals/3.1.2. Containers.md

@@ -45,7 +45,7 @@
 - Combines container management automation with an API
 - Cloud-native: Can run across different clouds
 - **Pod management**
-  - Manages placement of pods
+  - A pod is a group of one or more containers that share the same network namespace and can communicate with eachother via 'localhost'
   - 1 pod = 1 or more containers on a node
     - If node is removed = Kubernetes move affected workloads to different node.
   - If one pod crashes = Kubernetes creates new instance
@@ -79,7 +79,7 @@
   - Easier for new team members to get started
 - Each micro-service is completely autonomous with no cross-dependencies.
   - Provides fault isolation: If one goes down, it does not take out all application
-- Communicates with each other using APIs.
+- Communicates with each other using Application Programming Interface \(API\)
   - APIs encapsulate internal functionality.
     - Internal implementation details of each services are encapsulated behind their interface.
   - 💡Good practices:

AZ-900 Microsoft Azure Fundamentals/3.2. Storage.md

@@ -29,19 +29,31 @@
 - 💡 It's easy to enter, query, and analyze.
   - All of the data follows the same format.
   - E.g. sensor data or financial data.
+- Azure services:
+  - Azure SQL Database
+  - Azure Cosmos DB \(SQL API\)
 
 ### Semi-structured data
 
 - Also called as **non-relational** or **NoSQL data**.
 - Doesn't fit neatly into tables, rows, and columns.
 - Instead uses tags or keys that organize and provide a hierarchy for the data.
+- Azure services:
+  - Azure Cosmos DB \(MongoDB API, Cassandra API\)
+  - Azure Table Storage
+  - Azure Queue Storage
 
 ### Unstructured data
 
 - Encompasses data that has no designated structure to it
 - There are no restrictions on the kinds of data it can hold.
   - e.g. PDF document, a JPG image, a JSON file, video content, etc
 - 💡More prominent as businesses try to tap into new data sources.
+- Azure services:
+  - Azure Blob Storage
+  - Azure File Storage
+  - Azure Data Lake Storage
+  - Azure Disk Storage
 
 ## Azure Storage
 
@@ -121,8 +133,8 @@
 
 ### Azure Table Storage
 
-- NoSQL data Store
-- Scheme-less design
+- NoSQL data store
+- Schema-less design
 
 ### Encryption Types
 

AZ-900 Microsoft Azure Fundamentals/3.2.1. Databases.md

@@ -43,3 +43,12 @@
 - 📝 A cloud data warehouse for the enterprise
 - Characterized by high resiliency through automatic scaling.
 - Massive parallel processing (MPP) to run complex queries quickly across petabytes of data
+
+### Azure HDInsight
+
+- 📝 A big data and advanced analytics service providing open-source analytics, processing and integrations with big data frameworks, including:
+   - Apache Hadoop
+   - Apache Spark
+   - Apache HBase
+   - Apache Kafka
+- Useful for big data tasks such as ETL \(Extract, Transform, Load\), data warehousing, machine learning, and IoT.

AZ-900 Microsoft Azure Fundamentals/5.1. Azure Policy & Azure Blueprints.md

@@ -3,13 +3,13 @@
 - Allows you to ensure standards are followed for all IT allocated resources.
 - Old way was having the IT team define and deploy all cloud-based assets
   - Bad: reduces the team agility and ability to innovate
-  - Instead: enforce and validate your standards while still team(s) to create and own their own resources in the cloud.
+  - Instead: enforce and validate your standards while still allowing organizational team(s) to create and own their own resources in the cloud.
 
 ## Azure Policy
 
 - Each policy enforces rules over specified or all resources.
-- 📝 Allows your infrastructure stays compliant with e.g.
-  - corporate standards, cost requirements, service-level agreements.
+- 📝 Allows your infrastructure stay compliant with:
+  - corporate standards, cost requirements, service-level agreements, industry compliance frameworks \(ISO 27001, NIST 800-53, etc\).
 - E.g. a policy that allows virtual machines of only a certain size in your environment.
 - Evaluates both new and existing resources for compliance.
   - Can deny new uncompliant resources from being created
@@ -110,7 +110,7 @@
 
 - Makes it easier to adhere to security or compliance requirements, whether government or industry requirements.
 - Used often by cloud architects & central information technology groups.
-- Azure Blueprints is a declarative way to orchestrating deployment of:
+- Azure Blueprints is a declarative way of orchestrating the deployment of:
   - Role assignments
   - Policy assignments
   - Azure Resource Manager templates