Validation Quiz - MODULE 14
This 30-question quiz allows you to validate your knowledge of FinOps and AWS cost optimization before moving on to the practical lab.
Question 1
What is FinOps?
A) A financial operation
B) A practice combining finance, technology, and operations to optimize cloud costs
C) An AWS service
D) A type of budget
See the answer
Answer: B
FinOps (Financial Operations) is a discipline that brings together finance, technology, and business teams to collaboratively manage cloud costs. The pillars: visibility, optimization, and governance of cloud expenses.
Question 2
What are the three pillars of FinOps?
A) Cost, Performance, Security
B) Inform, Optimize, Operate (Visibility, Optimization, Governance)
C) Plan, Build, Run
D) IaaS, PaaS, SaaS
See the answer
Answer: B
The three FinOps phases: Inform (cost visibility, who spends what), Optimize (identify and achieve savings), Operate (governance, processes, continuous improvement). It's an iterative cycle.
Question 3
What is tagging in AWS?
A) A game
B) Assigning key-value pairs to resources to categorize and track costs
C) A type of security
D) A network configuration
See the answer
Answer: B
Tags are key-value pairs (e.g., Environment=Production, Team=Marketing) attached to AWS resources. They enable cost tracking by project, team, environment, and are essential for expense allocation.
Question 4
Which tags are recommended for cost tracking?
A) Only the name
B) Environment, Project, Owner, CostCenter, Application
C) No tags necessary
D) Only the default AWS tag
See the answer
Answer: B
Recommended tags: Environment (prod, dev, test), Project/Application (project identification), Owner (responsible person), CostCenter (accounting cost center), Team (team). Define a mandatory tagging strategy.
Question 5
How to enforce tag application on resources?
A) Impossible
B) AWS Organizations SCPs, AWS Config rules, or IAM policies with conditions
C) By email
D) Manually
See the answer
Answer: B
Several methods: SCPs (Service Control Policies) to prevent resource creation without tags, AWS Config to detect non-compliant resources, IAM policies with conditions on required tags.
Question 6
What is Cost Explorer?
A) A file explorer
B) An AWS tool to visualize, understand, and analyze costs and usage
C) A web browser
D) A storage service
See the answer
Answer: B
AWS Cost Explorer allows you to visualize costs and usage over time, analyze trends, filter by service/tag/region, and forecast future costs. Intuitive graphical interface for expense analysis.
Question 7
What is AWS Budgets?
A) An accounting service
B) A service to set budgets and receive alerts when thresholds are reached
C) A price calculator
D) A monthly report
See the answer
Answer: B
AWS Budgets allows you to set cost or usage budgets and receive alerts (email, SNS) when defined thresholds are reached or forecasted to be reached. Essential for proactive expense control.
Question 8
What types of budgets can be created with AWS Budgets?
A) Only costs
B) Costs, Usage, Reservations (RI), Savings Plans
C) Only usage
D) None
See the answer
Answer: B
Types of budgets: Cost Budget (expenses), Usage Budget (resource usage), RI Utilization (Reserved Instances usage), RI Coverage, Savings Plans utilization/coverage. Each for specific tracking.
Question 9
What is a Reserved Instance (RI)?
A) An instance reserved for emergencies
B) A 1 or 3-year usage commitment offering discounts up to 72%
C) A free instance
D) A test instance
See the answer
Answer: B
Reserved Instances are EC2 capacity usage commitments for 1 or 3 years in exchange for significant discounts (up to 72% vs On-Demand). Options: All Upfront, Partial Upfront, No Upfront.
Question 10
What is the difference between Standard RI and Convertible RI?
A) None
B) Standard cannot change, Convertible can be exchanged for another RI
C) Convertible is more expensive
D) Standard is for dev
See the answer
Answer: B
Standard RI: better discount but cannot be modified (type, family, OS). Convertible RI: lesser discount but can be exchanged for an RI of equal or greater value (flexibility to change instance type).
Question 11
What is a Savings Plan?
A) A bank savings plan
B) An hourly spend commitment ($/h) for 1-3 years offering discounts
C) A backup plan
D) A type of support
See the answer
Answer: B
Savings Plans are spend commitments (e.g., $10/hour) for 1 or 3 years. More flexible than RIs: they apply to EC2, Fargate, Lambda (depending on type). Discounts up to 72%.
Question 12
What are the types of Savings Plans?
A) Compute and EC2 Instance
B) Compute, EC2 Instance, and SageMaker
C) Only Compute
D) Only EC2
See the answer
Answer: B
Compute Savings Plan: flexible (all regions, instances, OS, tenancy), also applies to Fargate and Lambda. EC2 Instance Savings Plan: tied to a family in a region, better discount. SageMaker Savings Plan: for ML.
Question 13
When to use Spot instances?
A) For critical production
B) For workloads tolerant to interruptions (batch, CI/CD, analysis)
C) For databases
D) Never
See the answer
Answer: B
Spot instances are ideal for: batch processing, CI/CD, scientific computing, data analysis, large-scale testing. Up to 90% discount but can be interrupted with 2 minutes notice.
Question 14
What is Right Sizing?
A) Choosing the right clothing size
B) Adjusting instance types to actual usage to avoid overprovisioning
C) Increasing size
D) Only reducing
See the answer
Answer: B
Right Sizing involves analyzing actual usage (CPU, memory) and adjusting the instance type accordingly. An instance with 10% CPU constantly is oversized. AWS Compute Optimizer provides recommendations.
Question 15
Which AWS service provides right sizing recommendations?
A) EC2 only
B) AWS Compute Optimizer
C) CloudWatch
D) IAM
See the answer
Answer: B
AWS Compute Optimizer analyzes CloudWatch metrics and recommends optimal instance types for EC2, EBS, Lambda, and Auto Scaling Groups. It shows potential savings and performance impact.
Question 16
What is the "Instance Scheduler"?
A) An instance calendar
B) A solution to automatically stop/start instances according to a schedule
C) A type of instance
D) A backup service
See the answer
Answer: B
AWS Instance Scheduler is a solution to automatically stop non-production instances (dev, test) outside of working hours. Significant savings: an instance turned off 12h/day and weekends = ~70% savings.
Question 17
How to identify unused resources?
A) Impossible
B) Trusted Advisor, Cost Explorer, CloudWatch metrics (CPU near 0)
C) Via AWS email
D) Guess
See the answer
Answer: B
Methods: AWS Trusted Advisor (identifies idle resources), Cost Explorer (resources with low usage), CloudWatch (metrics near 0), AWS Compute Optimizer. Look for unattached EBS, unused IPs, etc.
Question 18
What is AWS Trusted Advisor?
A) A human advisor
B) A service that provides recommendations on costs, security, performance, fault tolerance
C) A chatbot
D) A support service
See the answer
Answer: B
Trusted Advisor analyzes your account and provides recommendations in 5 categories: Cost Optimization, Performance, Security, Fault Tolerance, Service Limits. Some checks are free, others require Business/Enterprise Support.
Question 19
What are common cost recommendations from Trusted Advisor?
A) None
B) Underutilized EC2 instances, unattached EBS volumes, unused IPs, underutilized RIs
C) Only security
D) Only performance
See the answer
Answer: B
Cost recommendations: idle EC2 instances (low CPU), unattached EBS volumes, unassociated Elastic IPs, low utilization RIs, idle Load Balancers, idle RDS, S3 incomplete multipart uploads.
Question 20
How to estimate the cost of an AWS architecture before deployment?
A) Impossible
B) AWS Pricing Calculator
C) Deploy and see
D) Ask AWS
See the answer
Answer: B
AWS Pricing Calculator allows you to model your architecture and estimate monthly costs. Add planned services with their configurations, and get a detailed estimate. Useful for budgeting and comparisons.
Question 21
What is the "Cost Allocation Report"?
A) An office allocation report
B) A detailed report of costs by tag, account, or service
C) A security report
D) A log
See the answer
Answer: B
The Cost and Usage Report (CUR) and Cost Allocation Tags allow generating detailed cost reports. Cost allocation tags must be activated to appear in billing reports.
Question 22
How to activate tags for cost allocation?
A) Automatic
B) In the Billing console, activate Cost Allocation Tags
C) Via IAM
D) Impossible
See the answer
Answer: B
In the Billing console > Cost Allocation Tags, activate the tags you want to use for cost allocation. Once activated, they will appear in Cost Explorer and reports. AWS-generated and user tags are available.
Question 23
What is S3 Intelligent-Tiering storage?
A) Smart storage
B) An S3 class that automatically moves objects between tiers based on access patterns
C) Premium storage
D) Test storage
See the answer
Answer: B
S3 Intelligent-Tiering automatically moves objects between tiers (Frequent Access, Infrequent Access, Archive) based on access patterns. Ideal when you don't know access patterns. No retrieval fees.
Question 24
How to reduce data transfer costs?
A) Impossible
B) Use CloudFront, VPC Endpoints, transfer within the same region/AZ
C) Transfer more data
D) Use S3 only
See the answer
Answer: B
Strategies: CloudFront for static content (caching), VPC Endpoints to avoid NAT Gateway fees, keep resources in the same AZ when possible, data compression, use AWS Direct Connect for large volumes.
Question 25
What is consolidated billing?
A) A paper invoice
B) Grouping invoices from multiple AWS accounts under an Organizations management account
C) A single payment
D) An automatic discount
See the answer
Answer: B
With AWS Organizations, invoices from all member accounts are consolidated under the management account. Benefits: unified view of expenses, combined volume discounts, shared RIs/Savings Plans between accounts.
Question 26
How are Reserved Instances shared between accounts?
A) They are not
B) Automatically in an AWS Organization with consolidated billing
C) Manually
D) Via IAM
See the answer
Answer: B
In an Organization with Consolidated Billing, RIs and Savings Plans are automatically shared between accounts. If account A has an unused RI, account B can benefit. Sharing can be disabled if necessary.
Question 27
What is typical "waste" in AWS?
A) Physical waste
B) Provisioned but unused resources (idle instances, orphaned EBS, old snapshots)
C) Network traffic
D) Logs
See the answer
Answer: B
Typical waste: EC2 instances with CPU < 5%, unattached EBS volumes, unnecessary old snapshots, unassociated Elastic IPs, Load Balancers without targets, idle RDS instances, over-provisioned Lambda memory.
Question 28
How to automate the deletion of old snapshots?
A) Manually
B) Amazon Data Lifecycle Manager (DLM) or scheduled Lambda scripts
C) Impossible
D) Via S3
See the answer
Answer: B
DLM allows defining automatic retention policies for EBS snapshots. Alternatively, a Lambda script with CloudWatch Events can identify and delete snapshots older than a certain age.
Question 29
What is "showback" vs "chargeback" in FinOps?
A) The same thing
B) Showback shows costs by team (informative), Chargeback actually bills teams
C) Presentation techniques
D) Types of reports
See the answer
Answer: B
Showback: showing teams how much they cost without actual financial transfer (awareness). Chargeback: actually billing costs to teams/departments (financial accountability). Showback is often a first step towards chargeback.
Question 30
What is a good practice for establishing a FinOps culture?
A) Keep costs secret
B) Make costs visible, empower teams, celebrate savings
C) Blame spending teams
D) Ignore costs
See the answer
Answer: B
FinOps culture: cost transparency (shared dashboards), team empowerment (expense ownership), gamification (optimization challenges), celebration of savings, continuous training, and regular feedback loops.
Result
Count your correct answers:
- 27-30: Excellent - You master FinOps
- 22-26: Good - Some points to review
- 17-21: Average - Review the course before the lab
- Less than 17: Insufficient - Retake the course from the beginning
Proceed to the FinOps Lab once you have reached at least 22 correct answers.