AWS Computer Fundamentals (EC2) Knowledge Check
What statement regarding ECS clusters is incorrect?
A cluster is zone specific
Which AWS service enables AWS users to run containers on Amazon ECS without provisioning and managing the host EC2 instances?
AWS Fargate
In the context of AWS Lambda, what are downstream resources?
AWS tools and/or entities required for a function to execute its code
Which storage option is hosted by Amazon EC2 instances themselves?
Amazon Instance Store Volumes
In the context of AWS Lambda, what is a trigger?
An AWS service operation that invokes a function
What is a Lambda function event source?
An AWS service which Lambda monitors for specific operations
What statement describes the correct relationship between ECR components?
An ECR registry contains multiple repositories, which contain multiple Docker images.
Regarding AWS Elastic Beanstalk, _________ identifies a collection of parameters and settings that define how an environment and its associated resources behave.
An environment configuration
When launching an Elastic Beanstalk environment for the first time, what three items must be selected?
An environment tier, a platform, and an environment type
Why should Lambda functions be stateless?
To rapidly launch as many copies of the function as needed to scale to the rate of incoming events
What do ECR repository policies control? (Choose 2 answers)
User access to the ECR repositories and User actions within an ECR repository
An AWS Elastic Beanstalk _________ is a logical collection of AWS Elastic Beanstalk components, including environments, versions, and environment configurations.
application
With AWS Lambda, you pay for ____.
compute time that you consume
Which Amazon EC2 instance family is ideal for applications that manage real-time unstructured data processing, or distributed web cache stores?
Memory-optimized
Spot instances are ideally designed for which purpose below?
Backend processing jobs that can withstand interruptions
You want to receive alerts when your containers, managed with Amazon ECS, need to scale up or down. Which tool is most appropriate for this task?
CloudWatch
What is Lambda function?
Compiled code that AWS Lambda runs when invoked
Persistent block storage for Amazon EC2 instances known as ____________ is independent from the lifecycle of an associated instance.
EBS Volumes
What is the difference between Amazon Elastic Container Service (ECS) and Amazon Elastic Container Registry (ECR)?
ECR stores Docker images to be deployed by ECS.
Which statement regarding Amazon ECS is correct?
ECS can manage all EC2 instances for all ECS clusters, but also allows you to manage instances directly through the ECS service.
____ instances in Amazon EC2 provide a balance of compute, memory, and network resources for common application deployments, such as simple websites, development environments, and code repositories.
General Purpose
Permissions for AWS Lambda-based applications can be managed by the ___ or the ____
IAM role; Lambda Function policy
Which of the following statements best describes Amazon EC2 Container Service (ECS)
It is a highly scalable, high performance container management service that supports Docker Containers.
Which of the following is not possible with Amazon Lightsail instances?
Launching a Lightsail instance without a public IP address
Which of the following choices correctly describes how EC2 instances can be launched from an AMI?
Multiple EC2 instances can be launched from a single AMI.
You can use a(n) _____ to launch an Amazon EC2 instance with a configuration that Amazon may not provide itself, but which another developer has created for a specific purpose.
Shared AMI
If you stop or terminate an Amazon EC2 instance, any data on ____ volumes associated with the instance will be lost.
Simple Storage System
In which of the following AWS Batch components can a user set a priority level, for time-sensitive or low-priority jobs?
Within a job queue
In AWS Beanstalk, an environment tier whose web application runs background jobs is known as __________.
Worker environment
When thinking of AWS Elastic Beanstalk, which statement is true?
Worker tiers pull jobs from SQS.
You want to have multiple versions of your application running at the same time, with all versions launched via AWS Elastic Beanstalk. Is this possible?
Yes. AWS Elastic Beanstalk is designed to support a number of multiple running environments
What statement about pricing for EC2 On-Demand instances is correct?
You pay only for the time you use instances, with no long-term commitments or up-front payments.
AWS Lambda provides serverless ____ technology.
backend computing
A(n) ________________ is temporary disk storage and is deleted when your host instance is stopped or terminated.
instance store volume
Reviewing Amazon Lightsail's __________ allows you to control ports for acceptable connections.
networking tab
When processing a job, a managed compute environment in AWS Batch automatically handles which aspects of the job? (Choose 3 answers)
resource scaling and job termination