AWS Solutions Architect Quiz 🎓(VPC, Load balancing, CloudWatch Autoscaling)
Published: 2021-03-15 14:59:06

The AWS solutions architect certification shows that you can use AWS services to solve software engineering problems and understand core best practices of the industry. In this article, I will quiz you on four sections from the material required for the exam: Virtual Private Cloud (VPC), Load balancing, CloudWatch, and Autoscaling.

![](https://cdn-images-1.medium.com/max/4000/1*gbCXIs0LFqnqkfpDe0HFtQ.png)

I will now briefly state some key facts about each AWS service, and then provide some example questions for the exam.

N.B: The following information on its own will not be enough to answer the questions.

### [VPC](https://aws.amazon.com/vpc/)

The VPC service allows you to create virtual private networks in the AWS cloud. It is also useful to know:

* A VPC consists of subnets (private/public), route tables, DHCP option sets, security groups and network Access Control Lists

* A public subnet directs traffic to an internet gateway

* Elastic IP is an AWS-owned public IP address that you can buy and assign to instances or network interfaces

* VPC endpoint enables private connections with AWS services and your VPC without requiring access over internet

* Peering allows instances in different VPCs to communicate as if they were in the same network

* Security groups are stateful and apply at the instance level

* ACLs are stateless and apply on the subnet level

* NAT gateway allows a private subnet to initiate outbound traffic

* VPN connection requires a CustomerGateway to connect with the VirtualPrivateGateway

### [Load Balancing](https://aws.amazon.com/elasticloadbalancing/)

Load balancing distributes traffic across EC2 instances. It is also useful to know:

* Elastic Load Balancing service allows you to send traffic to multiple Availability Zones

* Load balancer listeners check for connection requests.Client →load balancer and Load balancer →backend instances

* Can be configured for idle connection timeout, cross-zone balancing, connection draining, proxy protocol, sticky sessions and health checks

### [CloudWatch](https://aws.amazon.com/cloudwatch/)

Collect and track metrics of AWS resources and your application in real-time using CloudWatch. It is also useful to know:

* Alarms can be configured to trigger notifications when metrics cross a threshold

* The basic CloudWatch service sends data points every 5 minutes, whereas the detailed service runs every minute

### [Auto Scaling](https://docs.aws.amazon.com/autoscaling/plans/userguide/what-is-aws-auto-scaling.html)

React to changing demands for a service by scaling in and out EC2 based on scaling policy you define. It is also useful to know:

* CloudWatch alarm on a metric can trigger Auto 
Scaling

* Scaling policy describes how to scale

* Launch configurations define the new instances to be created.

## Quiz 🎓



The quiz can also be accessed in full size [here](https://forms.gle/eYhJTbt5KN6ebEtv9). These questions were sourced from multiple locations (mainly the [certification sample test](https://d1.awsstatic.com/training-and-certification/docs-sa-assoc/AWS-Certified-Solutions-Architect-Associate_Sample-Questions_v4.0_FINAL.pdf)) over a long period of time.

## Thanks For Reading

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We hope to cover the rest of the topics with similar articles very soon ⭐

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