AWS Cloud Practitioner Quiz

Which describes the pay-as-you-go model of cloud computing?

Answer:

Cloud uses pay-as-you-go billing, charging only for usage and shifting capital expense to operating expense.

Which cloud characteristic automatically adjusts resources to match demand?

Answer:

Elasticity automatically scales resources up and down with demand, optimizing cost and performance.

Which is the geographically independent unit that groups multiple Availability Zones?

Answer:

A Region is a geographically separate area composed of multiple AZs; an AZ is one or more isolated data centers.

To improve availability, which deployment is recommended for production systems?

Answer:

Spreading across multiple AZs keeps the system running if one AZ fails, improving availability.

In the AWS shared responsibility model, which falls under AWS's responsibility (security 'of' the cloud)?

Answer:

AWS is responsible for security 'of' the cloud (physical infrastructure, hardware, facilities); customers handle security 'in' the cloud.

Which is the recommended practice for the AWS account root user?

Answer:

Because the root user is powerful, enable MFA and use least-privilege IAM users for daily work.

Which AWS service creates and manages encryption keys and integrates with many services?

Answer:

KMS creates, manages, and rotates encryption keys and integrates with services like S3 and EBS.

Which AWS service provides on-demand access to compliance reports (audit artifacts)?

Answer:

AWS Artifact provides on-demand access to third-party audit reports and compliance documents.

Which AWS compute service provides virtual servers (instances)?

Answer:

Amazon EC2 provides virtual servers; S3 is storage, RDS is a database, and VPC is networking.

Which highly durable object storage service offers virtually unlimited capacity?

Answer:

Amazon S3 is durable, scalable object storage widely used for static files and backups.

Which AWS serverless compute service runs code without managing servers?

Answer:

AWS Lambda runs code without managing servers, event-driven and pay-per-use.

Which AWS service provides managed relational databases?

Answer:

Amazon RDS is a managed relational database that automates patching and backups; DynamoDB is NoSQL.

Which service builds a logically isolated virtual network in AWS?

Answer:

Amazon VPC is a logically isolated virtual network where you configure subnets, routing, and security.

Which AWS CDN delivers content from edge locations worldwide with low latency?

Answer:

Amazon CloudFront caches and delivers content from edge locations for low latency.

Which service manages users, groups, and permissions to control access to AWS resources?

Answer:

AWS IAM controls access via users, groups, roles, and policies, and is available at no additional charge.

Which AWS service monitors resource metrics and lets you set alarms?

Answer:

Amazon CloudWatch monitors metrics and logs with alarms; CloudTrail records API activity.

Which AWS service records who made which API calls and when, for auditing and investigation?

Answer:

AWS CloudTrail records API activity in the account, aiding auditing and security investigation.

Which service automatically checks best practices for cost, performance, security, and fault tolerance?

Answer:

AWS Trusted Advisor analyzes your account and advises on cost, performance, security, fault tolerance, and service limits.

Which AWS guidance compiles design principles for reliability, security, cost optimization, and more?

Answer:

The Well-Architected Framework evaluates designs across pillars such as operations, security, reliability, performance, cost, and sustainability.

Which purchase option discounts EC2 significantly in exchange for a 1- or 3-year usage commitment?

Answer:

Reserved Instances and Savings Plans give large discounts for a 1- or 3-year commitment; Spot suits interruptible workloads.

Which offering lets new users try AWS for free within certain limits?

Answer:

The Free Tier offers free usage up to limits, in types such as 12-month free, always free, and trials.

Which tool lets you estimate expected AWS costs in advance?

Answer:

AWS Pricing Calculator estimates costs in advance from a configuration; Cost Explorer analyzes actual spend.

Which AWS service visualizes and analyzes actual cost and usage trends?

Answer:

AWS Cost Explorer analyzes actual cost and usage with charts; AWS Budgets alerts on budget thresholds.

Which AWS service can alert you when spending is about to exceed a set budget?

Answer:

AWS Budgets lets you set budgets and notifies you (e.g., by email) when thresholds are projected to be exceeded.

Which top AWS Support plan includes 24/7 phone/chat support and a dedicated Technical Account Manager (TAM)?

Answer:

Enterprise Support is the top tier with a dedicated TAM and fast response; Basic is free with limited scope.

Which managed AWS service protects applications from DDoS attacks?

Answer:

AWS Shield protects against DDoS attacks; AWS WAF detects and blocks web-application-layer attacks.

Compared with buying and maintaining your own servers, what benefit can cloud migration offer?

Answer:

Cloud lowers upfront cost and provisions resources in minutes, improving agility and cost efficiency.

In the AWS global infrastructure, which sites near users cache content for services like CloudFront?

Answer:

Edge locations cache content near users to enable low-latency delivery via services like CloudFront.

Which AWS service provides a fully managed NoSQL database?

Answer:

Amazon DynamoDB is a fully managed NoSQL database offering high scalability and low latency without server management.