AWS Certified Cloud Practitioner (CLF-C02) Practice Exam Questions and Answers – Part 16/16

Answer: A,B. Amazon S3 Intelligent-Tiering || Amazon S3 Standard

Amazon S3 Standard and S3 Intelligent-Tiering are correct because neither charges a data retrieval fee for accessing your objects. As a practical rule, expect retrieval fees on infrequent access tiers and Glacier archive classes to offset their lower storage costs.

Answer: B,C. Amazon Simple Storage Service (Amazon S3) is a key value based object storage service || Amazon Simple Storage Service (Amazon S3) stores data in a flat non-hierarchical structure

Amazon S3 is an object storage service that uses a flat, non-hierarchical structure rather than traditional file systems. It relies on key-value pairs, so you cannot install databases directly on it, making it very distinct from block storage.

Answer: C. Warm Standby strategy

A warm standby strategy runs a smaller, functional version of your environment in another region, allowing you to scale up quickly during a disaster. Pilot light lacks this immediate operational capacity, while multi-site active-active exceeds the cost requirements for non-mission-critical workloads.

Answer: A. VPC peering connection

VPC peering connects two VPCs directly, allowing private traffic routing between them as if they are in the same network. Site-to-Site VPN and Direct Connect link on-premises networks to AWS, while VPC endpoints only connect a VPC to AWS services.

Answer: A. Application software license costs

Under the shared responsibility model, AWS handles physical security, hardware, and facility power, while customers manage their own application software licenses. This division of labor frees companies from maintaining data centers. Hardware and facility costs never fall to the cloud customer.

Answer: D,E. Amazon Elastic Compute Cloud (Amazon EC2) || Amazon CloudFront

AWS Shield Advanced provides specialized DDoS protection for resources like Amazon CloudFront and Amazon EC2. These services sit at the edge or compute layers, unlike storage or deployment services like S3 or Elastic Beanstalk.

Answer: A. Amazon S3 Standard

Amazon S3 Standard has no minimum storage duration, making it ideal for frequently accessed data. Archival and infrequent access classes like Glacier and Standard-IA enforce minimum duration fees, so deleting objects early incurs prorated charges.

Answer: C. Amazon Simple Storage Service (Amazon S3)

Amazon S3 lifecycle rules transition older objects to cheaper storage classes or delete them entirely to optimize costs. Block storage like EBS and instance stores lack automated lifecycle tiering. Use this feature to manage data retention seamlessly.

Answer: D,E. Data transferred out to an Amazon Elastic Compute Cloud (Amazon EC2) instance, when the instance is in the same AWS Region as the S3 bucket || Data transferred in from the internet

S3 does not charge for data transferred into the service from the internet or for data sent to an EC2 instance in the same region. Data going out to other regions incurs standard transfer fees, while all storage classes charge for consumed capacity.

Answer: A. You can use both read replicas and multi-AZ deployment for disaster recovery

Both read replicas and Multi-AZ deployments can address disaster recovery needs. Remember that Multi-AZ primarily provides high availability, while read replicas are typically used for scaling read performance, though cross-Region replicas serve as excellent disaster recovery mechanisms.

Answer: D. Amazon EC2 Auto Scaling

Amazon EC2 Auto Scaling automatically adjusts the number of instances to handle current traffic demands. A practical exam cue is to associate Auto Scaling with adding or removing capacity, whereas load balancers strictly distribute incoming traffic across existing resources.

Answer: A,E. AWS bills five instances as Reserved Instances, and the remaining four instances as regular instances || Bob receives the cost-benefit from Susan's Reserved Instance (RI) only if he launches his instances in the same AWS Region where Susan purchased her Reserved Instances (RI)

Consolidated billing applies Reserved Instance discounts automatically to any matching instance in the organization. The discount applies region-wide, making the Availability Zone requirement in the original explanation a technical inaccuracy.

Answer: B,D. Amazon EC2 can scale with changing computing requirements || With Amazon EC2, developers can launch and terminate the instances anytime they need to

Amazon EC2 differs from traditional hosting because it easily scales with changing requirements and allows developers to launch or terminate instances at any time. For the exam, remember that EC2 provides flexible, on-demand compute capacity rather than fixed monthly contracts.

Answer: D. Amazon Elastic File System (Amazon EFS)

Amazon EFS provides an NFS file system accessible from both AWS and on-premises servers over a Direct Connect or VPN connection. S3 is also accessible on-premises but is an object store rather than a mountable file system. EBS and instance store attach directly to EC2.

Answer: D. To run any containerized workload with Amazon Elastic Container Service (Amazon ECS) that can be interrupted

Spot Instances offer deep discounts for interruptible workloads like flexible containerized tasks. They should not be used for critical workloads or scheduled jobs requiring guaranteed capacity, and they never support database installations.

Answer: D. Virtual private Cloud (VPC)

Amazon Virtual Private Cloud lets you provision a logically isolated section of the AWS Cloud where you can launch resources in a custom virtual network. Remember that subnets and network access control lists are features configured inside your VPC.