Cloud Concepts
A company is considering a serverless architecture and wants to build and run applications without having to manage infrastructure. Which AWS services should the company consider using when building applications?
S3
Fargate
Lambda
DynamoDB
What is an Availability Zone?
Availability Zones (AZs) consist of 1 or more physically separated data centers.
A DevOps engineer is planning for the deployment of an application that can't be impacted if an entire geographic location is affected by a disaster. How can the engineer deploy this application?
Deploy the application to multiple Regions.
A company is developing a new web application that has high availability requirements. How can the company increase availability when deploying the application?
Deploy the application to span across multiple Availability Zones (AZs).
Utilize a multi-Region deployment when deploying the application.
Which AWS service can help you optimize your AWS environment by giving recommendations to reduce cost, increase performance, and improve security?
AWS Trusted Advisor
A company is contemplating a move to the AWS Cloud. What benefits can be gained from such a move?
The company can focus on its business rather than managing a data center.
An on-premises application requires a consistent, high-speed connection to the AWS Cloud environment that is better than an internet-based connection. Which AWS service can provide this connection?
Direct Connect
When monitoring the health of their application, a company notices one of their EC2 instances seems to handle a lot more traffic than the other instances. How can the company evenly distribute the traffic across all of its servers so that one server is not overwhelmed with requests?
Elastic Load Balancing
Your company would like to begin using Auto Scaling to add servers when CPU utilization reaches a certain threshold (e.g., 70%). Which service can you use to trigger actions when CPU utilization crosses the threshold?
CloudWatch Alarms
AWS purchases computing resources in large quantities at lower costs and then passes volume discounts on to their customers. Which benefit of cloud computing does this demonstrate?
Lower pay-as-you-go prices due to massive economies of scale.
is a private (bypasses the public internet), dedicated physical network connection from your on-premises data center to AWS. Since the connection is private, it is extremely fast.?
Direct Connect
A retail company has EC2 On-Demand Instances running to serve customer transactions. There is a set pattern of traffic where demand is high at 2 points in the day, but the instances sit idle for much of the day. What is a good way to optimize these resources?
Use an Auto Scaling group to scale out and in based on demand.
What is a geographical area of the world that is a collection of logically grouped data centers?
Region
A solutions architect is designing a new application for a customer. In designing the system, the architect recommends that content be cached to reduce latency to the end user. Which piece of the AWS global infrastructure allows for content to be cached and served from the nearest point to the user?
Edge location
The AWS Cloud spans multiple Regions, Availability Zones (AZs), edge locations, and more. How would you best describe an Availability Zone?
One or more discrete data centers with redundant power, networking, and connectivity in an AWS Region.
A company is receiving automated alerts notifying them that their only production EC2 instance is continuously reaching 100% CPU utilization. When this happens, customers cannot make purchases and receive error messages stating they should try again later because all the company's servers are busy. What should the company implement to ensure their system is highly available?
Horizontal scaling
A company has underutilized servers in its on-premises data center. Unfortunately, they are still required to pay for idle resources. Which benefit of the cloud can help the company solve this problem?
Elasticity
You're hosting a web application on EC2. After a few days of production usage, you notice the traffic to the web application far exceeds what was expected. You've decided to move to a larger instance type. What AWS principle does this represent?
Vertical scaling