aws cloud infrastructure

Question 1

What is a Region?

maz LL high availability

Answer 1

A Region is a geographical area consisting of multiple Availability Zones, each with its own data centers. AWS Regions are designed to provide low-latency and high-availability connectivity.

Question 2

cloud watch vs trail

trail api events and actions watch performance heath

Answer 2

In summary, while CloudTrail focuses on recording API events and actions for audit and security purposes, CloudWatch is designed for monitoring the performance and health of your AWS resources. In some cases, the two services can be used together, with CloudTrail sending its logs to CloudWatch Logs for additional analysis and alerting.

Question 3

How many Availability Zones (AZs does a Region have?

Answer 3

Typically, a Region consists of three or more Availability Zones.

Question 4

What is an Availability Zone?

3 or more

Answer 4

An Availability Zone (AZ is a data center or a group of data centers within a Region that are isolated from each other to ensure fault isolation.

Question 5

What is done to help ensure fault isolation?

az w power cooling network

Answer 5

Availability Zones are physically separated and have independent power, cooling, and networking to ensure fault isolation.
To implement fault tolerance, workloads use spare (or redundant) subsystems. When one of the subsystems in a redundant set fails, another picks up its work, typically almost seamlessly.

Question 6

Who is responsible for replicating data across Regions?

Answer 6

Customers are responsible for replicating data across Regions to ensure redundancy and disaster recovery.

Question 7

What 4 things should be considered when selecting a Region?

latency data sov $ services available

Answer 7

Considerations include latency, data sovereignty, cost, and service availability when selecting a Region.

Question 8

Can a customer specify which data center within an AZ to deploy from?

Answer 8

No, customers cannot specify the exact data center within an Availability Zone for deployment; AWS handles the underlying infrastructure.

Question 9

How is an Availability Zone designated? by #, by letter, by symbol?

Answer 9

Availability Zones are designated by letters (e.g., us-west-2a .

Question 10

Who can have access to the GovCloud Region?

Answer 10

GovCloud is limited to U.S. government agencies, their contractors, and other qualifying entities.

Question 11

What is Amazon CloudFront?

youtube apps data apps LL fast int speeds

Answer 11

Amazon CloudFront is a content delivery network (CDN service that securely delivers data, videos, applications, and APIs to customers globally with low latency and high transfer speeds.

Question 12

What is Amazon Route 53?

dns to aws endpoints

Answer 12

Amazon Route 53 is a scalable domain name system (DNS web service designed to route end-user requests to globally distributed AWS endpoints.

Question 13

What is an Edge location, and what is the benefit of it?

Answer 13

An Edge location is a point of presence that helps deliver content and services to end-users with lower latency. The benefit is improved performance and reduced load times.

Question 14

Which AWS services typically use Edge locations?

cf 53 global acceletor 100 gbps fiber

Answer 14

Amazon CloudFront and Amazon Route 53 typically use Edge locations. Amazon CloudFront, AWS Global Accelerator, and Amazon Route 53 sit at AWS’ global edge locations connected by dedicated 100Gbps redundant fiber to deliver data with single digit millisecond AWS network latency.

Question 15

What is the difference between Edge locations and Regional Edge caches?

Answer 15

Edge locations are individual points of presence, while Regional Edge caches are groups of Edge locations in a specific geographic region.

Question 16

Which AWS service uses Regional Edge caches by default?

Answer 16

Amazon CloudFront uses Regional Edge caches by default.
CloudFront provides regional edge caches at no additional cost to decrease the operational burden on origins and lower operating costs. Further reduction in origin-related costs are available using Origin Shield to minimize the number of origin fetches.

Question 17

What are 3 benefits provided by the AWS infrastructure?

SRS

Answer 17

Scalability, reliability, and security are three benefits provided by the AWS infrastructure.

Question 18

What are the 7 service categories covered in this course and on the AWS Cloud Practitioner certification exam?

SIAM L CaDS

Answer 18

Compute, Storage, Databases, Networking, Security & Identity, Analytics, and Machine Learning.

Question 19

What are the most widely used services in each of these categories?

RDS REDSHIFT SAGE MAKER

Answer 19

Examples include Amazon EC2 (Compute , Amazon S3 (Storage , Amazon RDS (Databases , Amazon VPC (Networking , IAM (Security & Identity , Amazon Redshift (Analytics , and Amazon SageMaker (Machine Learning) .

Question 20

After logging into your AWS Management Console, which services are global instead of Regional?

Answer 20

Global services include IAM, Route 53, and CloudFront. EC2, Lambda, S3, and RDS are Regional services.

Question 21

What is AWS’ shared responsibility as it relates to the cloud? Is it OF or IN and what does that mean?

DATA APPS CONFIGURATIONS

Answer 21

AWS’ shared responsibility is IN the cloud. This means AWS is responsible for the security OF the cloud infrastructure, while customers are responsible for security IN the cloud, such as data, applications, and configurations.

Question 22

What are managed resources, and how does that pertain to the AWS Shared Responsibility Model?

Answer 22

Managed resources refer to the infrastructure components that AWS manages on behalf of customers. This pertains to the AWS Shared Responsibility Model by delineating which aspects of security are handled by AWS and which are the responsibility of the customer.