Domain 4 - Billing and Pricing Flashcards
Your Linux-based EC2 instance requires a patch to a Linux kernel module. The problem is that patching the module will, for some reason, break the connection between your instance and data in an S3 bucket. Your team doesn’t know if it’s possible to work around this problem. Which is the most cost-effective AWS plan through which support professionals will try to help you?
- Enterprise
- Developer
- No plan covers this kind of support.
- Business
- Business
Only the Business and Enterprise plans include help with troubleshooting interoperability between AWS resources and third-party software and operating systems. The Business plan is the least expensive that will get you this level of support.
Your company enrolled in the Business Support plan and, through the course of running the AWS infrastructure the monthly consumption (cost) fell to $11,000. What is the new three month cost for the Business Support Plan?
- $1,100
- $2,310
- $100
- $4,000
The Business plan—when monthly consumption falls between $10,000 and $80,000—costs the greater of $100 or 7 percent of the monthly usage. In this case, 7 percent of a single month’s usage ($11,000) is $770. The three month total would, therefore, be $2,310.
- $2,310
The Business plan—when monthly consumption falls between $10,000 and $80,000—costs the greater of $100 or 7 percent of the monthly usage. In this case, 7 percent of a single month’s usage ($11,000) is $770. The three month total would, therefore, be $2,310.
Which of the following AWS support services does not offer free documentation of some sort?
- AWS Professional Services
- The Knowledge Center
- AWS Partner Network
- he Basic Support plan
- AWS Partner Network
The AWS Professional Services site includes tech talk webinars, white papers, and blog posts. The Basic Support plan includes AWS documentation resources. The Knowledge Center consists of FAQ documentation.
Which of the following Trusted Advisor alerts is available only for accounts on the Business or Enterprise Support plan? (Select TWO.)
- Load Balancer Optimization
- MFA on Root Account
- IAM Access Key Rotation
- Service Limits
- Load Balancer Optimization
Both the MFA and Service Limits checks are available for all accounts.
What’s the most cost-effective way to view and search only the last 60 days of management API events on your AWS account?
- Use CloudTrail event history.
- Use CloudWatch Events.
- Stream CloudTrail logs to CloudWatch.
- Create a trail.
- Use CloudTrail event history.
The CloudTrail event history log stores the last 90 days of management events for each Region. Creating a trail is overkill and not as cost-effective since it would involve storing logs in an S3 bucket. Streaming CloudTrail logs to CloudWatch would require creating a trail. CloudWatch Events doesn’t log management events.
You want to log every object downloaded from an S3 bucket in a specific region. You want to retain these logs indefinitely and search them easily. What’s the most cost-effective way to do this? (Select TWO.)
- Create a trail to log S3 data events.
- Stream CloudTrail logs to CloudWatch Logs.
- Use CloudTrail event history.
- Enable CloudTrail logging of global service events.
- Create a trail to log S3 data events.
- Stream CloudTrail logs to CloudWatch Logs.
Creating a trail in the Region where the bucket exists will generate CloudTrail logs, which you can then stream to CloudWatch for viewing and searching. CloudTrail event history doesn’t log data events. CloudTrail logs global service events by default, but S3 data events are not included.
Which of the following Cost Explorer report types can show you the monthly costs for your reserved EC2 instances?
- Reserved Instances (RI) Utilization reports
- Reserved Instances (RI) Coverage reports
- Costs and usage reports
- Reserved instance recommendations
- Costs and usage reports
The costs and usage reports show you your monthly spend by service. The reserved instances reports and reserved instance recommendations don’t show actual monthly costs.
Which of the following services allow you to purchase reserved instances to save money?
- Lambda
- S3
- AWS Fargate
Correct Answer
- Amazon Relational Database Service (RDS)
- Amazon Relational Database Service (RDS)
RDS lets you purchase reserved instances to save money. Lambda, S3, and Fargate don’t use instances
Which Cost Explorer report shows the amount of money you’ve saved using reserved instances?
- Monthly EC2 running hours costs and usage
- Daily costs
- Reservation Coverage
- Reservation Utilization
- Reservation Utilization
The reservation utilization report shows how much you have saved using reserved instances. The reservation coverage report shows how much you could have potentially saved had you purchased reserved instances. The daily costs and monthly EC2 running hours costs and usage reports don’t know how much you’ve saved using reserved instances.
You’ve been running several Elasticsearch instances continuously for thepast three months. You check the reserved instance recommendations in Cost Explorer but see no recommendations. What could be a reason for this?
- The recommendation parameters are based on the past seven days.
- You haven’t selected the Elastic Compute Cloud (EC2) service.
- Your instances are already covered by reservations.
- Cost Explorer doesn’t make reservation recommendations for Elasticsearch.
- You haven’t selected the ElastiCache service.
- Your instances are already covered by reservations.
Cost Explorer will make reservation recommendations for EC2, RDS, ElastiCache, Redshift, and Elasticsearch instances. You need to select the service you want it to analyze for recommendations. But Cost Explorer will not make recommendations for instances that are already covered by reservations. Because your Elasticsearch instances have been running continuously for at least the past seven days, that usage would be analyzed.
Where can you find a wide range of verified AMIs from both AWS and third- party vendors?
- Community AMIs
- My AMIs
- AWS Marketplace
- Quick Start
- AWS Marketplace
The Quick Start includes only the few dozen most popular AMIs. The Community tab includes thousands of publicly available AMIs—whether verified or not. The My AMIs tab only includes AMIs created from your account.
Which of the following describes an EC2 dedicated instance?
- An EC2 instance optimized for a particular compute role
- An EC2 instance running on a physical host reserved for and controlled by a single AWS account
- An EC2 AMI that can be launched only on an instance within a single AWS account
- An EC2 instance running on a physical host reserved for the exclusive use of a single AWS account
- An EC2 instance running on a physical host reserved for the exclusive use of a single AWS account
An EC2 instance that runs on a physical host reserved for and controlled by a single AWS account is called a dedicated host. A dedicated host is not an AMI, nor is it an instance type.
Your web application experiences periodic spikes in demand that require the provisioning of extra instances. Which of the following pricing models would make the most sense for those extra instances?
- On-demand
- Dedicated
- Spot
- Reserved
- On-demand
Spot instances are unreliable for this sort of usage since they can be shut down unexpectedly. Reserved instances make economic sense where they’ll be used 24/7 over long stretches of time. “Dedicated” isn’t a pricing model.
Your web application experiences periodic spikes in demand that require the provisioning of extra instances. Which of the following pricing models would make the most sense for the “base” instances that will run constantly?
- Reserved
- Spot fleet
- On-demand
- Spot
- Reserved
Reserved instances will work here because your “base” instances will need to run 24/7 over the long term. Spot and spot fleet instances are unreliable for this sort of usage since they can be shut down unexpectedly. On- demand instances will incur unnecessarily high costs over such a long period.
Which of the following best describes what happens when you purchase an EC2 reserved instance?
- Your account will immediately and automatically be billed for the full reservation amount.
- An EC2 instance matching your reservation will automatically be launched in the selected AWS Region.
Correct Answer
- Charges for any instances you run matching the reserved instance type will be covered by the reservation.
- Capacity matching the reserved definition will be guaranteed to be available whenever you request it.
There’s no real need for guaranteed available capacity since it’s extremely rare for AWS to run out. You choose how you’ll pay for a reserved instance. All Upfront, Partial Upfront, and No Upfront are available options, and there is no automatic billing. An instance would never be launched automatically in this context.
- Charges for any instances you run matching the reserved instance type will be covered by the reservation.
There’s no real need for guaranteed available capacity since it’s extremely rare for AWS to run out. You choose how you’ll pay for a reserved instance. All Upfront, Partial Upfront, and No Upfront are available options, and there is no automatic billing. An instance would never be launched automatically in this context.
