Which of the following price options would result in the highest reduction after making an Amazon EC2 Dedicated Host reservation?
No upfront payment
Hourly on-demand payment
Partial upfront payment
All upfront payment
Answer is All upfront payment
Reservations can provide up to a 70% discount compared to the On-Demand price. Dedicated Host Reservations can be purchased using the AWS Management Console or AWS CLI.
You can choose between three Dedicated Host Reservation payment options. With the All Upfront option, you pay for the entire Dedicated Host Reservation with one upfront payment. This option provides you with the largest discount compared to On-Demand pricing. With the Partial Upfront option, you make a low upfront payment and are then charged a discounted hourly rate for the Dedicated Host for the duration of the reservation. The No Upfront option does not require an upfront payment and provides a discounted hourly rate for the duration of the term.
Which of the following tasks may be used to improve Amazon EC2 costs? (Select two.)
Implementing Auto Scaling groups to add and remove instances based on demand.
Creating a policy to restrict IAM users from creating new instances.
Setting a budget to limit spending on EC2 instances using AWS Budgets.
Purchasing Reserved Instances.
Adding EC2 instances to a second AWS Region that is geographically close to the end users.
Answers are;
A. Implementing Auto Scaling groups to add and remove instances based on demand.
D. Purchasing Reserved Instances.
It says to "improve the costs" not "increase the costs". Meaning, the costs should be lower (improvement).
While technically you could prevent users from creating new EC2 instances, it kinda defeats the purpose of having a service in the first place! It's akin to saying that to reduce your car's gas consumption is to not drive. It's technically true but not something that is practical.
AWS budgets cannot terminate or stop all EC2 instances when the resource spending limit is hit
After studying the AWS Cost and Usage report in the AWS Management Console, a Cloud Practitioner detects a billing problem.
Which course of action should be done to rectify this?
Open a detailed case related to billing and submit it to AWS Support for help.
Upload data describing the issue to a new object in a private Amazon S3 bucket.
Create a pricing application and deploy it to a right-sized Amazon EC2 instance for more information.
Proceed with creating a new dashboard in Amazon QuickSight.
Answer is Open a detailed case related to billing and submit it to AWS Support for help.
You can create a support case in the Support Center of the AWS Management Console.
In the AWS Management Console, you can create three types of customer cases in AWS Support:
- Account and billing support cases are available to all AWS customers. You can get help with billing and account questions.
- Service limit increase requests are available to all AWS customers. For more information about the default service quotas, formerly referred to as limits, see AWS service quotas in the AWS General Reference.
- Technical support cases connect you to technical support for help with service-related technical issues and, in some cases, third-party applications. If you have a Developer Support plan, you can communicate by using email and the Support Center. If you have a Business or Enterprise Support plan, you can also communicate by phone or live chat.
For 3 hours, 5 minutes, and 6 seconds, a client operates an Amazon Linux EC2 instance on-demand.
How long will the consumer be charged?
3 hours, 5 minutes
3 hours, 5 minutes, and 6 seconds
3 hours, 6 minutes
4 hours
Answer is 3 hours, 5 minutes, and 6 seconds
if bill by second it start with a minimum of 60 seconds only count when new instance is started
"If your instance is billed by the second, then you're billed for a minimum of 60 seconds each time a new instance is started—that is, when the instance enters the running state."
AWS has the ability to achieve lower pay-as-you-go pricing by aggregating usage across hundreds of thousands of users.
This describes which advantage of the AWS Cloud?
Launch globally in minutes
Increase speed and agility
High economies of scale
No guessing about compute capacity
Answer is High economies of scale
Question 276
A company has a database server that is always running. The company hosts the server on Amazon EC2 instances. The instance sizes are suitable for the workload. The workload will run for 1 year.
Which EC2 instance purchasing option will meet these requirements MOST cost-effectively?
A company is using the AWS Free Tier for several AWS services for an application.
What will happen if the Free Tier usage period expires or if the application use exceeds the Free Tier usage limits?
The company will be charged the standard pay-as-you-go service rates for the usage that exceeds the Free Tier usage.
AWS Support will contact the company to set up standard service charges.
The company will be charged for the services it consumed during the Free Tier period, plus additional charges for service consumption after the Free Tier period.
The company's AWS account will be frozen and can be restarted after a payment plan is established.
Answer is The company will be charged the standard pay-as-you-go service rates for the usage that exceeds the Free Tier usage.
When your free tier expires or if your application use exceeds the free tier limits, you simply pay standard, pay-as-you-go service rates
A user is comparing purchase options for an application that runs on Amazon EC2 and Amazon RDS. The application cannot sustain any interruption. The application experiences a predictable amount of usage, including some seasonal spikes that last only a few weeks at a time. It is not possible to modify the application.
Which purchase option meets these requirements MOST cost-effectively?
Review the AWS Marketplace and buy Partial Upfront Reserved Instances to cover the predicted and seasonal load.
Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run on Spot Instances.
Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run at an On-Demand rate.
Buy Reserved Instances to cover all potential usage that results from the seasonal usage.
Answer is Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run at an On-Demand rate.
Reserving is the most cost effective for the predicted time frame and on demand is recommended for instances that cannot be interrupted.
As per the AWS documentation:
[...]Spot Instances are a cost-effective choice if you can be flexible about when your applications run and if your applications can be interrupted[...]
A company wants to review its monthly costs of using Amazon EC2 and Amazon RDS for the past year.
Which AWS service or tool provides this information?
AWS Trusted Advisor
Cost Explorer
Amazon Forecast
Amazon CloudWatch
Answer is Cost Explorer
AWS Cost Explorer has an easy-to-use interface that lets you visualize, understand, and manage your AWS costs and usage over time. Get started quickly by creating custom reports that analyze cost and usage data. Analyze your data at a high level (for example, total costs and usage across all accounts) or dive deeper into your cost and usage data to identify trends, pinpoint cost drivers, and detect anomalies.