Scalability Flashcards
Which of the following is an example of horizontal scaling in the AWS Cloud?
Replacing an existing EC2 instance with a larger, more powerful one.
Increasing the compute capacity of a single EC< instance to address the growing demands of an application.
Adding more RAM capacity to an EC2 instance.
Adding more EC2 instances of the same size to handle an increase in traffic.
Adding more EC2 instances of the same size to handle an increase in traffic.
One of the most important AWS best-practices to follow is the cloud architecture principle of elasticity. How does this principle improve your architecture’s design?
By automatically scaling your on-premises resources based on changes in demand.
By automatically scaling your AWS resources using an Elastic Load Balancer.
By reducing interdependencies between application components wherever possible.
By automatically provisioning the required AWS resources based on changes in demand.
By automatically provisioning the required AWS resources based on changes in demand.
In order to implement best practices when dealing with a “Single Point of Failure,” you should attempt to build as much automation as possible in both detecting and reacting to failure. Which of the following AWS services would help? (Choose TWO)
ELB.
Auto Scaling.
Amazon Athen.
ECR.
Amazon EC2
ELB.
Auto Scaling.
A company is concerned that they are spending money on underutilized compute resources in AWS. Which AWS feature will help ensure that their applications are automatically adding/removing EC2 compute capacity to closely match the required demand?
AWS Elastic Load Balancer.
AWS Budgets.
AWS Auto Scaling.
AWS Cost Explorer.
AWS Auto Scaling.
A company is introducing a new product to their customers, and is expecting a surge in traffic to their web application. As part of their Enterprise Support plan, which of the following provides the company with architectural and scaling guidance?
AWS Knowledge Center.
AWS Health Dashboard.
Infrastructure Event Management.
AWS Support Concierge Service.
Infrastructure Event Management.
What are the AWS services/features that can help you maintain a highly available and fault-tolerant architecture in AWS? (Choose TWO)
AWS Direct Connect.
Amazon EC2 Auto Scaling.
Elastic Load Balancer.
CloudFormation.
Network ACLs.
Amazon EC2 Auto Scaling.
Elastic Load Balancer.
What are the AWS services/features that can help you maintain a highly available and fault-tolerant architecture in AWS? (Choose TWO)
AWS Direct Connect.
Amazon EC2 Auto Scaling.
Elastic Load Balancer.
CloudFormation.
Network ACLs.
Amazon EC2 Auto Scaling.
Elastic Load Balancer.
Which of the following activities may help reduce your AWS monthly costs?
Enabling Amazon EC2 Auto Scaling for all of your workloads.
Using the AWS Network Load Balancer (NLB) to load balance the incoming HTTP requests.
Removing all of your Cost Allocation Tags.
Deploying your AWS resources across multiple Availability Zones.
Enabling Amazon EC2 Auto Scaling for all of your workloads.
Jessica is managing an e-commerce web application in AWS. The application is hosted on six EC2 instances. One day, three of the instances crashed; but none of her customers were affected. What has Jessica done correctly in this scenario?
She has properly built an elastic system.
She has properly built a fault tolerant system.
She has properly built an encrypted system.
She has properly built a scalable system.
She has properly built a fault tolerant system.
Which of the following AWS offerings is a MySQL-compatible relational database service that can scale capacity automatically based on demand?
Amazon Neptune.
Amazon Aurora.
Amazon RDS for SQL Server.
Amazon RDS for PostgreSQL.
Amazon Aurora.
Which of the following AWS services scale automatically without your intervention? (Choose TWO)
Amazon EC2.
Amazon S3.
AWS Lambda.
Amazon EMR.
Amazon EBS.
Amazon S3.
AWS Lambda.
(and DynamoDB )
A company has a web application that is hosted on a single EC2 instance and is approaching 100 percent CPU Utilization during peak loads. Rather than scaling the server vertically, the company has decided to deploy three Amazon EC2 instances in parallel and to distribute traffic across the three servers. What AWS Service should the company use to distribute the traffic evenly?
AWS Global Accelerator.
AWS Application Load Balancer (ALB).
Amazon CloudFront.
Transit VPC.
AWS Application Load Balancer (ALB).
What are the advantages of using Auto Scaling Groups for EC2 instances?
Auto Scaling Groups caches the most recent responses at global edge locations to reduce latency and improve performance.
Auto Scaling Groups scales EC2 instances in multiple Availability Zones to increase application availability and fault tolerance.
Auto Scaling Groups scales EC2 instances across multiple regions to reduce latency for global users.
Auto Scaling Groups distributes application traffic across multiple Availability Zones to enhance performance.
Auto Scaling Groups scales EC2 instances in multiple Availability Zones to increase application availability and fault tolerance.
A company is building an online cloud storage platform. They need a storage service that can scale capacity automatically, while minimizing cost. Which AWS storage service should the company use to meet these requirements?
Amazon Simple Storage Service.
Amazon Elastic Block Store.
Amazon Elastic Container Service.
AWS Storage Gateway.
Amazon Simple Storage Service.
Which AWS Service provides integration with Chef to automate the configuration of EC2 instances?
AWS Config.
AWS OpsWorks.
AutoScaling.
AWS CloudFormation.
AWS OpsWorks.
