AWS Cloud Practitioner — Practice Questions flashcards
6 of 60 questions free to study here · 4 topics · the whole deck is built into Willys
Multiple-choice practice questions, one best answer each, on cloud benefits, Well-Architected, migration, shared responsibility, IAM, security services, core AWS services and billing.
Practice deck · part of AWS Certified Cloud Practitioner · written against: Exam CLF-C02 guide. Updated 2026-10-10.
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A ticketing company buys enough on-premises servers to survive its single busiest sale of the year, so most of them sit idle for the other eleven months. Which cloud benefit addresses this problem most directly?
A) Increase speed and agility
B) Benefit from economies of scale
C) Go global in minutes
D) Stop guessing capacityD) Stop guessing capacityCloud Concepts › Benefits of the Cloud
In the cloud the company provisions for the load it actually has and adds capacity only when the big sale arrives. Economies of scale lower the unit price, but they do not stop the company paying for idle peak hardware. -
A company's web application automatically adds servers when lunchtime traffic surges and removes them as soon as traffic drops, so capacity tracks demand throughout the day. Which cloud characteristic does this show?
A) Elasticity
B) Durability
C) Fault tolerance
D) High availabilityA) ElasticityCloud Concepts › Benefits of the Cloud
Elasticity is growing and shrinking resources automatically and quickly so they match demand moment to moment. High availability is about staying up through failures, not about matching capacity to load. -
A company runs a web server on an Amazon EC2 instance. A critical security update is released for the operating system installed on that instance. Under the shared responsibility model, who must apply it?
A) AWS, as the operator of EC2
B) AWS Support, after a support case is opened
C) The vendor of the physical host
D) The customer that runs the instanceD) The customer that runs the instanceSecurity and Compliance › Shared Responsibility
On EC2 the customer manages the guest operating system and everything above it, including its patches. AWS is responsible for the hardware and virtualization layer beneath the instance, not the guest OS. -
Under the AWS shared responsibility model, which task is the responsibility of AWS rather than the customer?
A) Physical security of datacenter facilities
B) Encrypting data stored in Amazon S3 buckets
C) Configuring security group rules
D) Granting IAM permissions to usersA) Physical security of datacenter facilitiesSecurity and Compliance › Shared Responsibility
Physical access control in datacenters is part of security of the cloud, which AWS owns. Firewall rules, encryption choices and IAM permissions are customer configuration, part of security in the cloud. -
A company wants to describe its whole environment in a JSON or YAML template so it can create identical test and production stacks on demand. Which service fits?
A) AWS CloudFormation
B) AWS Systems Manager
C) AWS Elastic Beanstalk
D) Amazon CloudWatchA) AWS CloudFormationCloud Technology and Services › Deployment and Operating Methods
CloudFormation is infrastructure as code: it provisions a stack of resources from a template the same way every time. Elastic Beanstalk deploys an application onto managed resources but is not a general template language for a whole environment. -
A research lab runs fault-tolerant batch jobs that can be stopped and restarted at any time, and it wants the lowest possible compute cost. Which EC2 purchasing option fits?
A) Dedicated Hosts
B) Reserved Instances
C) Spot Instances
D) On-Demand InstancesC) Spot InstancesBilling Pricing and Support › Pricing Models
Spot Instances use spare EC2 capacity at the steepest discount, but AWS can reclaim them with short notice, which interruptible batch work can tolerate. Reserved Instances need a one- or three-year commitment, which does not fit flexible, interruptible work.
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About these cards
Review status: Second-reader reviewed, with corrections applied.
Checked against:
- Checked against the AWS Certified Cloud Practitioner (CLF-C02) exam guide, domains 1 to 4, and its in-scope services list (topic outline only; no text copied).
- Checked against AWS public documentation and whitepapers: Well-Architected Framework, AWS Cloud Adoption Framework, migration strategies, shared responsibility model, IAM, the security services, product overview pages for the services named and the AWS pricing overview whitepaper (reference only; no sentences reproduced).
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