Domain 1: Cloud Concepts (26%)

Question 1

AWS Cloud Benefits

Answer 1

Security
Reliability
High Availability
Elasticity
Agility
Pay-as-you go pricing (Metered services)
Scalability
Global Reach
Economy of Scale

Question 2

AWS Business Value Proposition

Answer 2

Shift focus from infrastructure to revenue-generating activities

Question 3

Total Cost of Ownership Considerations

Answer 3

Operational Expenses
Capital Expenses
Labor Costs of On-Premises Operations
Software Licensing Costs

Question 4

Cloud Cost Savings

Answer 4

Right-sized infrastructure
Benefits of Automation
Reduce compliance scope (i.e. reporting)
Managed Services

Question 5

Managed Service Examples

Answer 5

RDS
ECS
EKS
DynamoDB

Question 6

AWS Design Principles

Answer 6

Design for Failure
Decouple Components vs Monolithic Architecture
Cloud elasticity vs On-premises
Think parallel

Question 7

Cloud Deployment Models

Answer 7

Public
Private
Hybrid
Community

Question 8

Cloud Service Categories

Answer 8

Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Software as a Service (SaaS)

Question 9

AWS IaaS Solutions

Answer 9

Elastic Compute Cloud (EC2)
Elastic Block Store (EBS)
Elastic Load Balancing

Question 10

IaaS Benefits

Answer 10

• Scalability
• Cost
• High Availability
• Physical and logical security requirements
• Location and access independence
• Metered usage
• Potential for “green” data centers
• Choice of Hardware (Intel, AMD, GPU, and ARM)

Question 11

AWS PaaS Solutions

Answer 11

Elastic Beanstalk

Question 12

PaaS Benefits

Answer 12

Auto-scaling
Multiple host environments
Choice of environments
Flexibility
Ease of upgrades
Cost-effective
Ease of access
Licensing

Question 13

SaaS Benefits

Answer 13

Support costs and efforts
Reduced overall costs
Licensing
Ease of use and administration
Standardization

Question 14

Private Cloud Benefits

Answer 14

Ownership retention
Control over systems
Proprietary data and software control

Question 15

Difference between Elasticity and Scalability

Answer 15

• Scalability is the ability to add new resources in line with demand.
• Elasticity is the ability to add those resources seamlessly without needing downtime or restarts

Question 16

Difference between Availability and Resiliency

Answer 16

• Availability is the ability to access the needed resources
• Resiliency is the ability of the system to recover or remain available when some component or function fails

Question 17

AWS Pillars of Well Architected Framework

Answer 17

Operational Excellence
Security
Reliability
Performance Efficiency
Cost Optimization
Sustainability

Question 18

Principles of Operational Excellence

Answer 18

Perform operations as code
Make frequent, small, reversible changes
Refine operations procedures frequently
Anticipate failure
Learn from all operational failures

Question 19

Principles of Security

Answer 19

Implement a strong identity foundation
Enable traceability
Apply security at all layers
Automate security best practices
Protect data in transit and at rest
Keep people away from data
Prepare for security events

Question 20

Principles of Reliability

Answer 20

Automatically recover from failure
Test recovery procedures
Scale horizontally to increase aggregate workload availability
Stop guessing capacity
Manage change in automation

Question 21

Principles of Performance Efficiency

Answer 21

Democratize advanced technologies
Go global in minutes
Use serverless architectures
Experiment more often
Consider mechanical sympathy

Question 22

Principles of Cost Optimization

Answer 22

Implement cloud financial management
Adopt a consumption model
Measure overall efficiency
Stop spending money on undifferentiated heavy lifting
Analyze and attribute expenditure

Question 23

Principles of Sustainability

Answer 23

Understand your impact
Establish sustainability goals
Maximize utilization
Anticipate and adopt new, more efficient hardware and software offerings
Use managed services
Reduce the downstream impact of your cloud workloads