Amazon Web Services Updated CLF-C02 Exam Questions and Answers by wiktor

AWS App Runner is a fully managed service that makes it easy for developers to quickly deploy containerized web applications and APIs at scale. It can automatically build container images from source code or directly from a container registry, and then deploy the application without requiring deep container knowledge or expertise.

AWS App Runner meets the requirements of:

Automatically creating container images from source code.

Managing the deployment of the containerized application with minimal operational overhead.

Why other options are not suitable:

A. AWS Elastic Beanstalk: While it simplifies deploying and scaling web applications, it does not automatically create container images from source code.

B. Amazon Elastic Container Service (Amazon ECS): ECS is a container orchestration service that requires more manual setup for creating and managing container images and deployments.

D. Amazon EC2: This service provides virtual servers but does not offer managed container image creation or deployment.

References:

AWS App Runner Documentation

The AWS account root user is the email address that you used to sign up for AWS. The root user has complete access to all AWS services and resources in the account. You should use the root user only to perform a few account and service management tasks. One of these tasks is changing AWS Support plans, which requires root user credentials. For other tasks, you should create an IAM user or role with the appropriate permissions and use that instead of the root user.

A VPC (Virtual Private Cloud) in AWS is a logically isolated network that you define in the AWS Cloud. Within a VPC, you can create subnets, route tables, network gateways, and more.

D. Internet Gateway: An internet gateway is a component that allows communication between resources in a VPC and the internet.

E. Subnet: A subnet is a range of IP addresses in your VPC. Subnets can be public or private and are essential for organizing resources within a VPC.

Why other options are not suitable:

A. Amazon API Gateway: Used for creating and managing APIs, not a direct component of a VPC.

B. Amazon S3 buckets and objects: Amazon S3 is a storage service; its resources are globally accessible and not confined to a VPC.

C. AWS Storage Gateway: A hybrid cloud storage service, not a core component of a VPC.

References:

Amazon VPC Documentation

Amazon EC2 On-Demand Instances are instances that let you pay for compute capacity by the hour or second (minimum of 60 seconds) with no long-term commitments. This frees you from the costs and complexities of planning, purchasing, and maintaining hardware and transforms what are commonly large fixed costs into much smaller variable costs. On-Demand Instances are suitable for applications with short-term, irregular, or unpredictable workloads that cannot be interrupted, such as periodic applications that run for a few hours most days, but run for 8 hours a day for a week at the end of each month2. Amazon EC2 Standard Reserved Instances are instances that provide you with a significant discount (up to 75%) compared to On-Demand Instance pricing. In exchange, you select a term and make an upfront payment to reserve a certain amount of compute capacity for that term. Reserved Instances are suitable for applications with steady state or predictable usage that require reserved capacity3. AWS Wavelength is a service that enables developers to build applications that deliver ultra-low latency to mobile devices and users by deploying AWS compute and storage at the edge of the 5G network. Wavelength is suitable for applications that require single-digit millisecond latencies, such as game and live video streaming, machine learning inference at the edge, and augmented and virtual reality (AR/VR). Application Load Balancer is a service that operates at the request level (layer 7) and distributes incoming application traffic across multiple targets, such as EC2 instances, containers, Lambda functions, and IP addresses. Application Load Balancer is suitable for applications that need advanced routing capabilities, such as microservices or container-based architectures.