Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company runs a customer-facing web application on AWS. To ensure the application remains available if a fire or flood destroys one of the company's data centers, the IT team deploys the application across multiple physically separate facilities within the same AWS Region. Each facility has independent power, cooling, and physical security. Which component of the AWS global infrastructure does this deployment strategy primarily use?
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
AWS Regions
An AWS Region is a geographic area that contains multiple Availability Zones. Deploying across Regions is used for geographic redundancy and disaster recovery across large distances, not for protecting against a single data center failure within the same Region. The scenario specifically describes multiple facilities within the same Region.
B
Best answer
Availability Zones
Availability Zones are physically separate and isolated data centers within an AWS Region. Each has independent power, cooling, and physical security. By deploying across multiple Availability Zones, the application can survive the failure of one data center, meeting the requirement for high availability within the same Region.
C
Distractor review
Edge Locations
Edge Locations are sites used by AWS services like Amazon CloudFront to cache content closer to end-users. They are not designed to run general-purpose compute workloads like a web application, nor do they provide the independent infrastructure needed for fault tolerance across data centers.
D
Distractor review
Local Zones
Local Zones are extensions of an AWS Region that place compute, storage, and database services closer to large population centers for low-latency access. While they provide additional capacity, they are not primarily designed to offer multiple physically independent facilities within a single Region for fault tolerance against a data center failure.
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: Availability Zones — Availability Zones are distinct locations within an AWS Region that are engineered to be isolated from failures in other Availability Zones. Each Availability Zone has independent power, cooling, and networking. Deploying resources across multiple Availability Zones provides high availability and fault tolerance against the failure of a single data center. AWS Regions are geographic areas that contain multiple Availability Zones, but deploying across Regions provides geographic dispersion, not just within a single Region. Edge Locations are primarily used for content delivery and caching, not for running compute workloads with independent infrastructure. Local Zones are extensions of Regions that place compute and storage closer to end-users for low-latency applications, but they are not primarily designed for fault tolerance across data centers within a Region.
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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