AWS Cloud Practitioner Essentials
How does the scale of cloud computing help you to save costs? You do not have to invest in technology resources before using them. The aggregated cloud usage from a large number of customers results in lower pay-as-you-go prices. Accessing services on-demand helps to prevent excess or limited capacity. You can quickly deploy applications to customers and provide them with low latency.
The aggregated cloud usage from a large number of customers results in lower pay-as-you-go prices.
You want to deploy and manage containerized applications. Which service should you use? AWS Lambda Amazon Simple Notification Service (Amazon SNS) Amazon Simple Queue Service (Amazon SQS) Amazon Elastic Kubernetes Service (Amazon EKS)
Amazon Elastic Kubernetes Service (Amazon EKS) The correct response option is Amazon Elastic Kubernetes Service (Amazon EKS). Amazon EKS is a fully managed Kubernetes service. Kubernetes is open-source software that enables you to deploy and manage containerized applications at scale. The other response options are incorrect because: AWS Lambda is a service that lets you run code without provisioning or managing servers. Amazon Simple Queue Service (Amazon SQS) is a service that enables you to send, store, and receive messages between software components through a queue. Amazon Simple Notification Service (Amazon SNS) is a publish/subscribe service. Using Amazon SNS topics, a publisher publishes messages to subscribers.
You want to use an Amazon EC2 instance for a batch processing workload. What would be the best Amazon EC2 instance type to use? General purpose Memory optimized Compute optimized Storage optimized
Compute optimized
Which process is an example of Elastic Load Balancing? Ensuring that no single Amazon EC2 instance has to carry the full workload on its own Removing unneeded Amazon EC2 instances when demand is low Adding a second Amazon EC2 instance during an online store's popular sale Automatically adjusting the number of Amazon EC2 instances to meet demand
Ensuring that no single Amazon EC2 instance has to carry the full workload on its own The correct response option is Ensuring that no single Amazon EC2 instance has to carry the full workload on its own. Elastic Load Balancing is the AWS service that automatically distributes incoming application traffic across multiple resources, such as Amazon EC2 instances. This helps to ensure that no single resource becomes overutilized. The other response options are all examples of Auto Scaling.
What are the contract length options for Amazon EC2 Reserved Instances? (Select TWO.) 1 year 2 years 3 years 4 years 5 years
1 and 3 years
Which statement best describes an Availability Zone? A geographical area that contains AWS resources A single data center or group of data centers within a Region A data center that an AWS service uses to perform service-specific operations A service that you can use to run AWS infrastructure within your own on-premises data center in a hybrid approach
A single data center or group of data centers within a Region. The correct response option is A single data center or group of data centers within a Region. The other response options are incorrect because: A Region is a geographical area that contains AWS resources. An edge location is a data center that an AWS service uses to perform service-specific operations. Edge locations are examined in the next section of this module. AWS Outposts is a service that you can use to run AWS infrastructure, services, and tools in your own on-premises data center in a hybrid approach. AWS Outposts is explored later in this module.
What is cloud computing? Backing up files that are stored on desktop and mobile devices to prevent data loss Deploying applications connected to on-premises infrastructure Running code without needing to manage or provision servers On-demand delivery of IT resources and applications through the internet with pay-as-you-go pricing
On-demand delivery of IT resources and applications through the internet with pay-as-you-go pricing
What is another name for on-premises deployment? Private cloud deployment Cloud-based application Hybrid deployment AWS Cloud
Private cloud deployment
You have a workload that will run for a total of 6 months and can withstand interruptions. What would be the most cost-efficient Amazon EC2 purchasing option? Reserved Instance Spot Instance Dedicated Instance On-Demand Instance
Spot Instance The other response options are incorrect because: Reserved Instances require a contract length of either 1 year or 3 years. The workload in this scenario will only be running for 6 months. Dedicated Instances run in a virtual private cloud (VPC) on hardware that is dedicated to a single customer. They have a higher cost than the other response options, which run on shared hardware. On-Demand Instances fulfill the requirements of running for only 6 months and withstanding interruptions. However, a Spot Instance would be the best choice because it does not require a minimum contract length, is able to withstand interruptions, and costs less than an On-Demand Instance.