Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company runs an e-commerce platform on Amazon EC2 instances in a single AWS Region. The company wants to ensure that the platform remains available even if a natural disaster disrupts the entire geographic area of that Region. Which approach should the company take to meet this requirement?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Deploy the application across multiple Availability Zones within the same Region.
Multiple Availability Zones provide high availability and fault tolerance within a single Region by distributing instances across isolated data centers. However, they do not protect against a disaster that takes down the entire Region, which is a geographic area consisting of multiple AZs.
B
Distractor review
Deploy the application across multiple Edge Locations of Amazon CloudFront.
Edge Locations are part of the CloudFront content delivery network and are used to cache content closer to users. They do not run compute resources like EC2 instances and are not designed for hosting applications or providing disaster recovery.
C
Best answer
Deploy the application across multiple AWS Regions.
Deploying across multiple AWS Regions is the correct approach for geographic disaster recovery. Each Region is completely independent, with separate power, cooling, and physical infrastructure. If one Region is affected by a disaster, the application can fail over to another Region, ensuring business continuity.
D
Distractor review
Deploy the application on a larger instance type within the same Availability Zone.
Using a larger instance type provides more compute capacity but does not introduce any redundancy. All instances remain in the same single Availability Zone, which is a single point of failure. This approach does not protect against even a local data center failure, let alone a regional disaster.
Common exam trap
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Technical deep dive
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer needs to launch a test server for a new application prototype. The developer logs into the AWS Management Console, selects an Amazon EC2 instance type, configures the security group, and starts the instance. The instance is running within two minutes, and the developer did not need to submit a formal request to the company's IT procurement team or wait for approval from a cloud administrator. Which essential characteristic of cloud computing does this scenario best demonstrate?
Question 2
A solutions architect is planning a new web application on AWS. The workload will include 3 Amazon EC2 instances (t3.medium) running 24/7, an Application Load Balancer, and an Amazon RDS for MySQL db.t3.small database. The architect needs to estimate the monthly cost for the first year, considering different purchasing options (On-Demand, 1-year All Upfront Reserved Instance, and Compute Savings Plan). Which AWS tool should the architect use to create this estimate?
Question 3
A company's development team frequently needs temporary test environments. A developer can log into the AWS Management Console, select an Amazon EC2 instance type, configure storage, and launch the instance within minutes without any interaction with the IT infrastructure team. This capability is an example of which essential characteristic of cloud computing?
Question 4
A company's finance team needs to analyze AWS spending in detail. They require a report that includes hourly cost data for each AWS service, each individual resource (e.g., a specific EC2 instance), and any cost allocation tags applied. The team plans to export this data to an Amazon S3 bucket and then import it into a custom business intelligence (BI) analytics dashboard. Which AWS tool should the finance team use to generate this level of detailed cost data?
Question 5
A company uses AWS for its development environment. The finance team wants to set a monthly budget of $10,000. They want to receive an email notification when the actual costs reach 80% of the budget ($8,000) and again when costs exceed the budget. The team needs a managed AWS service that can automatically send these alerts without requiring custom code or third-party tools. Which AWS service should the team use?
Question 6
A company uses AWS Organizations to manage multiple accounts. The security team needs to enforce a policy that restricts SSH access (port 22) from the internet (0.0.0.0/0) in all VPCs across all accounts. The team wants to centrally define the allowed rules and automatically apply them to newly created VPCs and security groups, while also automatically remediating any existing non-compliant security groups. Which AWS service should the team use?
FAQ
Questions learners often ask
What does this CLF-C02 question test?
OSPF neighbours must agree on key parameters.
What is the correct answer to this question?
The correct answer is: Deploy the application across multiple AWS Regions. — To protect against a regional disaster that could affect an entire AWS Region, the company must deploy resources across multiple AWS Regions. This ensures that if one Region becomes unavailable, the application can fail over to another geographically separate Region. Availability Zones (AZs) within a single Region protect against data center failures but not against a regional outage. Edge Locations are used for content caching and do not host compute instances. A larger instance size does not provide any redundancy or disaster recovery capability.
What should I do if I get this CLF-C02 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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