WGU D282 CLOUD FOUNDATIONS EXAMPREP
QUESTIONS AND DETAILED SOLUTIONS
◉ S3 Bucket.
Answer: -fundamental storage container
-secure and scalable repository
-named globally unique and configured with ACL (access control
list)
◉ Features of S3.
Answer: 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.
Answer: 1. Scalability
2. High availability
3. Data lifecycle management
,4. Integration with other AWS services
◉ Amazon RDS (Relational Database Service).
Answer: -managed by AWS
-wide range of data base engines: MySQL, PostgreSQL, Oracle, SQL
Server
◉ RDS Shared Responsibility Model.
Answer: -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
-Customer is responsible for managing data stored withing database
- encryption access controls, compliance w/ data governance
policies
- need to configure security settings, performance, and ensure
efficient usage
◉ DB Instance Burstable Performance.
Answer: -good for: cost effective workloads with occasional
performance spikes
-variable performance operating at baseline levels with the ability to
burst for higher performance
,◉ AWS Region.
Answer: -geographically separated locations that contain multiple
availability zones
◉ Availability Zone.
Answer: -distinct data centers within a region
-each has independent power, cooling, and networking
◉ Mulit-AZ Deployment.
Answer: -Primary database is automatically replicated to a standby
instance in another AZ within same region
-Primary: read/write access
Standby: stays in-sync for DR
◉ Use Cases of Amazon RDS.
Answer: 1. Web application
2. Managed database
3. Isolation
4. Highly secured
◉ Features of RDS.
, Answer: 1. Availability:
-Automated back up
-Database Snapshots
2.Security
-Admin role
-KMS
3.Backups
4.Scalability
5.Performance
6.Pricing
◉ RDS Drawbacks.
Answer: 1. Limited Customization
2. cost
3. Manual Scaling
4. Backup and restore time
5. Vendor Lock in
◉ AWS Lambda.
Answer: -cloud service that runs your code only when needed
-upload code - AWS does scaling, security, and availability
QUESTIONS AND DETAILED SOLUTIONS
◉ S3 Bucket.
Answer: -fundamental storage container
-secure and scalable repository
-named globally unique and configured with ACL (access control
list)
◉ Features of S3.
Answer: 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.
Answer: 1. Scalability
2. High availability
3. Data lifecycle management
,4. Integration with other AWS services
◉ Amazon RDS (Relational Database Service).
Answer: -managed by AWS
-wide range of data base engines: MySQL, PostgreSQL, Oracle, SQL
Server
◉ RDS Shared Responsibility Model.
Answer: -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
-Customer is responsible for managing data stored withing database
- encryption access controls, compliance w/ data governance
policies
- need to configure security settings, performance, and ensure
efficient usage
◉ DB Instance Burstable Performance.
Answer: -good for: cost effective workloads with occasional
performance spikes
-variable performance operating at baseline levels with the ability to
burst for higher performance
,◉ AWS Region.
Answer: -geographically separated locations that contain multiple
availability zones
◉ Availability Zone.
Answer: -distinct data centers within a region
-each has independent power, cooling, and networking
◉ Mulit-AZ Deployment.
Answer: -Primary database is automatically replicated to a standby
instance in another AZ within same region
-Primary: read/write access
Standby: stays in-sync for DR
◉ Use Cases of Amazon RDS.
Answer: 1. Web application
2. Managed database
3. Isolation
4. Highly secured
◉ Features of RDS.
, Answer: 1. Availability:
-Automated back up
-Database Snapshots
2.Security
-Admin role
-KMS
3.Backups
4.Scalability
5.Performance
6.Pricing
◉ RDS Drawbacks.
Answer: 1. Limited Customization
2. cost
3. Manual Scaling
4. Backup and restore time
5. Vendor Lock in
◉ AWS Lambda.
Answer: -cloud service that runs your code only when needed
-upload code - AWS does scaling, security, and availability
