Knowledge Check: Billing, Pricing, and Support (CLF-C01) Flashcards
In AWS, tags provide the functionality to define metadata in the form of _____.
A. configuration files
B. database tables
C. algorithms
D. key-value pairs
D. key-value pairs
Explanation
Tags provide the functionality to define metadata in the form of key and value pairs.
Which statements regarding compute savings plans are correct? (Choose 3 answers)
A. Compute savings plans can be applied to multiple AWS compute services.
B. Compute savings plans provide a higher discount on instance costs than EC2 Instance Savings Plans
C. Compute savings plans can apply to resources in different regions.
D. Compute savings plan discounts apply across instance families.
A. Compute savings plans can be applied to multiple AWS compute services.
C. Compute savings plans can apply to resources in different regions.
D. Compute savings plan discounts apply across instance families.
Explanation:
Savings Plans are a flexible pricing model that offer low prices on Amazon EC2, AWS Lambda, and AWS Fargate usage, in exchange for a commitment to a consistent amount of usage (measured in $/hour) for a 1 or 3 year term. When you sign up for a Savings Plan, you will be charged the discounted Savings Plans price for your usage up to your commitment.
Compute Savings Plans provide the most flexibility and help to reduce your costs by up to 66%. These plans automatically apply to EC2 instance usage regardless of instance family, size, AZ, Region, OS or tenancy, and also apply to Fargate or Lambda usage. For example, with Compute Savings Plans, you can change from C4 to M5 instances, shift a workload from EU (Ireland) to EU (London), or move a workload from EC2 to Fargate or Lambda at any time and automatically continue to pay the Savings Plans price.
In AWS, _____ allow the user to receive notifications when costs or usage exceed a certain predefined
amount.
A. budgets
B. quotas
C. thresholds
D. alarms
A. budgets
Explanation
Budgets allow the user to get notified when costs or usage exceed a certain predefined amount.
Which of the following is not one of the five pillars of the AWS Well-Architected Framework?
A. cost optimization
B. reliability
C. scalability
D. security
C. scalability
Explanation
AWS has developed a structure of best practices and strategies to use when building software in the cloud, called the AWS Well-Architected Framework. The framework is based on five pillars that ensure a secure, reliable, efficient, and cost-effective system: operational excellence, security, reliability, performance and efficiency, and cost optimization.
_____ is a comprehensive assessment of IT’s total costs or other costs over time.
A. Total summative assessment
B. Total cost of ownership
C. Summative cost
D. Weighted cost allocation
B. Total cost of ownership
Explanation
TCO stands for total cost of ownership and is a comprehensive assessment of IT’s total costs or other costs over time.
To ensure that you extract the full economic potential of the AWS Cloud at any scale, you must define and enforce cost allocation tagging. This relates to which pillar of cost optimization defined by AWS?
A. leverage the right pricing model
B. measure, monitor, and improve
C. optimize storage
D. right-sizing
B. measure, monitor, and improve
Explanation
Measure, monitor, and improve: To ensure that you extract the full economic potential of the AWS Cloud at any scale, you want to define and enforce cost allocation tagging.
Which of the following describes AWS Budgets?
A. A dashboard that provides quick insights into your recent account cost and usage.
B. A collection of dynamic graphs that allow you to discover usage trends and provides estimated usage and cost forecasts.
C. A set of reports that provide detailed historic cost and usage data for your account.
D. A service that allows you to set specific spending and usage limits for AWS services
D. A service that allows you to set specific spending and usage limits for AWS services
Explanation:
AWS Budgets is a service within the Billing and Cost Management console that allows you to set limits for service usage, cost, and reserved instance utilization. You can create alerts to receive notifications when you exceed or are forecasted to exceed your specific thresholds.
Which of the following actions is not one of the pillars of cost optimization defined by AWS?
A. Forecast usage and costs.
B. Optimize storage.
C. Decrease elasticity.
D. Leverage the right pricing model.
C. Decrease elasticity.
Explanation:
Increase elasticity: Traditional IT costs and hardware requirements are tailored for peak usage and these resources are rarely turned off. In the cloud, you can optimize costs to meet dynamic needs and turn resources off when they are not needed. For example, you can usually turn off non-production instances for 70% or more of any given week.
_____ tags are special tags that are used by Cost Explorer and other services for allocation and visualization.
A. Simple Resource Name
B. Cost allocation
C. Environment
D. Cost visualization
B. Cost allocation
Explanation:
Cost allocation tags are special tags that are used by Cost Explorer and other services for allocation and visualization.
What is an AWS Availability Zone?
A. An isolated location that contains multiple AWS-managed data centers
B. An isolated location that contains a single AWS-managed data center
C. A single AWS-managed server that customers host on-premises
D. A large cache located in highly populated areas to deliver CDN content
A. An isolated location that contains multiple AWS-managed data centers
Explanation:
An availability zone is an isolated location containing multiple physical data centers located close together hosting AWS virtual resources.
An availability zone is often mistaken for a single physical data center hosting AWS virtual resources. A common misconception is that a single availability zone equals a single data center. This is not the case. Multiple data centers located close together can form a single availability zone.
AWS Outposts offers a single AWS-managed server that customers host on-premises.
An edge location is a cache in a highly populated area where AWS stores data for CDN services.
According to the AWS Well-Architected Framework, which of these is an example of operational excellence?
A. Constantly improving and efficiently managing workloads
B. Protecting data, systems, and components using cloud technologies
C. Efficiently allocating and right-sizing computing resources by the system requirements
D. Understanding and controlling expenses, avoiding unnecessary costs, and analyzing spend in detail
A. Constantly improving and efficiently managing workloads
Explanation:
The operational excellence pillar aims at constant improvement and efficient managing of workloads, as well as gaining operational insights and continuous improvement of processes and procedures to support business value.
The security pillar describes how to protect data, systems, and components using cloud technologies, how user rights and privileges are correctly managed, and how integrity and conformity of information is maintained.
The performance and efficiency pillar is the efficient allocation and right-sizing of computing resources by the system requirements and interception of demand changes
The cost optimization pillar is understanding and controlling expenses, avoiding unnecessary costs, and analyzing spend in detail
Development, test/stage, and production are all examples of values for which common AWS resource tag?
A. Environment
B. Cost Center/Business Unit
C. Service/Workload
D. Resource Owner
A. Environment
Explanation:
The Environment tag determines the cost difference between different environments, for example, dev, test/stage, and production.
In a cloud environment, a(n) _____ instance is a disposable instance that is only used for a limited time and
on demand.
A. reserved
B. orphaned
C. spot
D. untagged
C. spot
Explanation;
Spot instancesinstancesare only used for a limited time and on demand.
In a cloud environment, a(n) _____ instance is one that is booked for the long term.
A. reserved
B. orphaned
C. spot
D. untagged
A. reserved
Explanation:
How many of your resources are reserved instances–that is, instances that are booked for the long term?
What does the phrase ‘stop guessing capacity’ mean?
A. To determine quantity of resources used on performance metrics
B. To implement self-healing processes
C. To set correct data storage lifecycles
D. To use elastic IP addresses to increase high availability
A. To determine quantity of resources used on performance metrics
Explanation;
One of the best practices of the reliability pillar of the Well-Architected Framework is to ‘stop guessing capacity.’ This looks at the use of Auto Scaling to prevent the need to predict and guess your capacity and demand requirement which aids in a better end-user experience.
