WGU D282 Cloud foundations 2026 Latest
Version
Core Components of an EC2 Instance - 1. Amazon Machine Image (AMI)
2. Instance Types
3. Elastic Block Store (EBS) Volumes
4. Security Groups
5. Key Pair
EC2 - - Elastic Cloud Compute
-on-demand service on the AWS instances platform
- lets you rent virtual computers to run applications
- only pay for what you use
AMI (EC2 Core Component) - - Amazon Machine Image
- software blueprint for your instance - thousands to choose from or custom create
EBS Volumes (EC2 Core Component) - -Elastic Block Store
-block-level storage volume that can be attached to EC2 instance
-virtual hard drive for server
-persistent- data remains even afterEC2 instance is terminated
-detach a volume from one instance and attach to another
,Instance Types (EC2 Core Component) - - hardware profiles of virtual server
- General purpose: t and m families: for web servers, small databases
-Compute optimized: c family has high ratio of CPU power for memory - ideal for batch
processing, media transcoding, and scientific modeling
-Memory optimized: r family - high ratio of memory to CPU, used for large databases and in-
memory caches
Security Group (EC2 Core Component) - -acts as virtual firewall for EC2 instance
-customizable
Key Pairs (EC2 Core Component) - -public and private key
-set of security credentials
-AWS has public key
Features of EC2 - -Functionality
-Operating Systems
-Software
-Reliability
-Scalability
AWS S3 Simple Storage Service - -stores files of different types like photo, audio and videos as
objects - provides more scalability and security
-allows users to store and retrieve any amount of data at any point in time from anywhere on
the web
S3 Uses - -Good for: mobile/web applications, big data, machine learning
,-Data storage: best option for scaling both small and large storage applications
-Backup and Recovery maintain data durability and availability for recovery needs
-Hosting Static Websites: low latency and cost effective
-Data Archiving: service integration, low cost for long term data storing
-Big Data Analytics: can store large amounts of structured and unstructured data, offers
integration with other AWS services
S3 Glacier - -ultra-low cost storage service built for backups and long term data archiving
-highly secure and durable
-$1 per petabyte per month
-slower retrieval times
Glacier Vaults - -virtual containers that are used to store data
-each vault has its specific access policies
-region-specific
Glacier Archives - -fundamental entity type stored in vaults
Main Applications for AWS Glacier - 1. Storing old data and meeting compliance rules
2. Disaster recovery and cybersecurity
3. Storing large media files
4. Research and big data storage
5. Business and legal records
6.Security and investigation storage
Benefits of Glacier - 1. Lower cost
, 2. Upholds archive database
3. Durability
4. Scalability
S3 Bucket - -fundamental storage container
-secure and scalable repository
-named globally unique and configured with ACL (access control list)
Features of S3 - 1. Durability
2. Availability
3. Server-side encryption (SSE)
4. File size support
5. Infinite storage space
6. Pay as you are
Advantages of Amazon S3 - 1. Scalability
2. High availability
3. Data lifecycle management
4. Integration with other AWS services
Amazon RDS (Relational Database Service) - -managed by AWS
-wide range of data base engines: MySQL, PostgreSQL, Oracle, SQL Server
RDS Shared Responsibility Model - -AWS is responsible for managing the infrastructure -
underlying hardware data centers and network security, database software installation,
patching, and automated backups
-includes physical security, failover management, and high availability
Version
Core Components of an EC2 Instance - 1. Amazon Machine Image (AMI)
2. Instance Types
3. Elastic Block Store (EBS) Volumes
4. Security Groups
5. Key Pair
EC2 - - Elastic Cloud Compute
-on-demand service on the AWS instances platform
- lets you rent virtual computers to run applications
- only pay for what you use
AMI (EC2 Core Component) - - Amazon Machine Image
- software blueprint for your instance - thousands to choose from or custom create
EBS Volumes (EC2 Core Component) - -Elastic Block Store
-block-level storage volume that can be attached to EC2 instance
-virtual hard drive for server
-persistent- data remains even afterEC2 instance is terminated
-detach a volume from one instance and attach to another
,Instance Types (EC2 Core Component) - - hardware profiles of virtual server
- General purpose: t and m families: for web servers, small databases
-Compute optimized: c family has high ratio of CPU power for memory - ideal for batch
processing, media transcoding, and scientific modeling
-Memory optimized: r family - high ratio of memory to CPU, used for large databases and in-
memory caches
Security Group (EC2 Core Component) - -acts as virtual firewall for EC2 instance
-customizable
Key Pairs (EC2 Core Component) - -public and private key
-set of security credentials
-AWS has public key
Features of EC2 - -Functionality
-Operating Systems
-Software
-Reliability
-Scalability
AWS S3 Simple Storage Service - -stores files of different types like photo, audio and videos as
objects - provides more scalability and security
-allows users to store and retrieve any amount of data at any point in time from anywhere on
the web
S3 Uses - -Good for: mobile/web applications, big data, machine learning
,-Data storage: best option for scaling both small and large storage applications
-Backup and Recovery maintain data durability and availability for recovery needs
-Hosting Static Websites: low latency and cost effective
-Data Archiving: service integration, low cost for long term data storing
-Big Data Analytics: can store large amounts of structured and unstructured data, offers
integration with other AWS services
S3 Glacier - -ultra-low cost storage service built for backups and long term data archiving
-highly secure and durable
-$1 per petabyte per month
-slower retrieval times
Glacier Vaults - -virtual containers that are used to store data
-each vault has its specific access policies
-region-specific
Glacier Archives - -fundamental entity type stored in vaults
Main Applications for AWS Glacier - 1. Storing old data and meeting compliance rules
2. Disaster recovery and cybersecurity
3. Storing large media files
4. Research and big data storage
5. Business and legal records
6.Security and investigation storage
Benefits of Glacier - 1. Lower cost
, 2. Upholds archive database
3. Durability
4. Scalability
S3 Bucket - -fundamental storage container
-secure and scalable repository
-named globally unique and configured with ACL (access control list)
Features of S3 - 1. Durability
2. Availability
3. Server-side encryption (SSE)
4. File size support
5. Infinite storage space
6. Pay as you are
Advantages of Amazon S3 - 1. Scalability
2. High availability
3. Data lifecycle management
4. Integration with other AWS services
Amazon RDS (Relational Database Service) - -managed by AWS
-wide range of data base engines: MySQL, PostgreSQL, Oracle, SQL Server
RDS Shared Responsibility Model - -AWS is responsible for managing the infrastructure -
underlying hardware data centers and network security, database software installation,
patching, and automated backups
-includes physical security, failover management, and high availability
