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Which service helps manage access to AWS resources by enabling user permissions?
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AWS Identity and Access Management (IAM).
What service allows you to create an isolated network within AWS?
Amazon Virtual Private Cloud (VPC).
What are the components of the AWS Shared Responsibility Model?
AWS is responsible for hardware, global infrastructure, and software. Customers are responsible for data encryption, infrastructure configuration, and software configuration.
What key strategy should you use when tackling multiple-choice questions on the AWS exam?
Rule out 1-2 obviously incorrect answers, identify keywords, and avoid options with 'always', 'never', 'manually'.
What AWS service can be used to establish a secure connection between on-premises environments and AWS?
AWS VPN.
How does AWS Auto Scaling work?
AWS Auto Scaling automatically adjusts compute capacity to maintain performance and efficiency.
What are the three types of resources commonly utilized in cloud computing?
Compute, Storage, and Database.
How does using cloud services contribute to business agility?
Cloud services allow businesses to quickly scale resources and respond to demand, leading to faster innovation and greater flexibility.
What service is used for long-term archival storage on AWS?
Amazon Glacier.
Explain the difference between EC2 and Lambda.
EC2 provides virtual machines for computing, whereas Lambda offers serverless computing to run code in response to events.
Name the Five Pillars of the AWS Well-Architected Framework.
Operational Excellence, Security, Reliability, Performance Efficiency, Cost Optimization.
How does AWS RDS differ from DynamoDB?
RDS is a managed relational database service, whereas DynamoDB is a managed NoSQL database service.
Describe the functionality of Amazon S3.
Amazon S3 provides object storage with virtually unlimited capacity and is used for storing and retrieving any amount of data at any time.
What is the definition of cloud computing?
On-demand delivery of IT resources over the Internet with pay-as-you-go pricing.
Explain the term 'trading CapEx for OpEx' in cloud computing.
This means switching from capital expenditures (buying physical servers) to operational expenditures (paying for cloud services as needed).
What is the purpose of Amazon Route 53?
Amazon Route 53 is a scalable Domain Name System (DNS) web service.
What recommendations are made for the day before the AWS certification exam?
Relax and avoid cramming. Have confidence that preparation is complete.
What is the primary advantage of AWS Availability Zones?
They provide physically separate and independent data centers to improve fault tolerance and reduce risk of failures.
What is AWS GuardDuty used for?
AWS GuardDuty is used for continuous security monitoring to detect threats and protect AWS accounts.
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