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AWS Cloud Practition
AWS Certified Cloud Practitioner
Question | Answer |
---|---|
Why go with a Cloud provider over On Premise? | 1. Trade capital expense for variable expense 2. Benefit from massive economies of scale 3. Stop guessing capacity 4. Increase speed and agility 5. Stop spending money on running and maintaining data centers 6. Go global in minutes |
Which region allows you to see all of your billing information? | US-EAST-1 |
Datacenter owned by a trusted partner of AWS which has a direct connection to the AWS network | Edge Location |
What is the name for regions that allow customers to host sensitive controlled unclassified information | GovCloud |
What is CloudFront? | Content Delivery Network (CDN) - cache |
What logs activity? | CloudWatch |
What does Lambda do? | serverless service that executes code |
EC2 pricing Models | 1. On demand 2. Spot 3. Reserved 4. Dedicated |
Characteristics of On Demand EC2 Pricing | 1. Least Commitment 2. Low cost and flexible 3. Short-term, spiky, unpredictable workloads 4. Cannot be interrupted 5. For first time apps |
Characteristics of Spot EC2 Pricing | 1. Biggest Savings 2. Request spare computing capacity 3. Flexible start and end times 4. Can handle interruptions (server randomly stopping and starting) 5. For non-critical background jobs 6. Up to 90% off |
Characteristics of Reserved EC2 Pricing | 1. Up to 75% off 2. Best Long-term Choice 3. Steady state or predictable usage 4. Commit to EC2 over a 1 or 3 year term 5. Can resell unused reserved instances |
Characteristics of Dedicated EC2 Pricing | 1. Most expensive 2. Dedicated servers 3. Can be on-demand or reserved 4. When you need a guarantee of isolated hardware |
Services that are free but can provision AWS services that cost money | 1. Auto Scaling 2. CloudFormation 3. Elastic Beanstalk 4. Opsworks 5. Amplify 6. AppSync 7. CodeStar |
Basic Support Plans | Basic - email support only. For billing and account |
Developer Support Plan | Tech Support via Email; no third party support; general guidance; system impaired |
Business Support Plan | Tech Support via Email, chat and phone 24/7; general guidance; system impaired; production system impaired; production system down; all trusted advisor checks |
Enterprise Support Plan | all of the above plus business-critical system down; personal concierge; TAM |
AWS Marketplace | curated digital catalog with thousands of software listings from independent software vendors |
Trusted Advisor | Advises you on security, saving money (cost optimization), performance, service limits and fault tolerance. Think of it like an automated checklist of best practices on AWS |
consolidated billing | 1:55:43 |
AWS Account Level Servicess | Billing, IAM, Route 53 |
AWS Regional Level Services | S3, DynamoDB, VPC, ELB |
AWS Availability Zone Services | EC2, RDS, EBS |
AWS Services | EC2 - elastic cloud compute Auto Scaling - EC2 horizontal scaling Lambda - Serverless computing ELB - Elastic Load Balancer ECS - Elastic Container Service |
AWS Services | EMR - Elastic Mapreduce Kinesis - Real time data/video streaming Athena - Interactive Query Engine QuickSight - Business Intelligence Glue - ETI Service |
WAF | Application firewall |
a tool that shows the status of AWS services that are running user-specific resources. It is a graphical representation that sends alerts, notifications of any personal pending issues, planned changes and scheduled activities | Personal Health Dashboard |
A service that acts as a broker that allows successful authenticated users access to AWS resources. After successful authentication on platforms such as Facebook, LinkedIn or google, users are awarded temporary authentication code | Amazon Cognito |
a comprehensive resource center for access to AWS' auditor issued reports as well as security and compliance documentation from several renowned independent standards organizations | AWS Artifact |
What service accesses AWS provisioned infrastructure for compliance and security vunerabilities | Amazon Inspector |
What service provides real-time guidance in best practice implementation and maintenance of AWS resources | AWS Trusted Advisor |
Why does it take between 24 to 48 hours for changes made to a hosted zone in Amazon Route53 to reflect globally? | DNS resolvers around the world can only reflect the changes in their cache after the Time to Live has expired. It is 24 hours by default. |
Which of the following Amazon Web Services can be referred to as a serverless service? (Select 3) A. AWS Lambda B. Elastic Load Balancing C. AWS Cloud9 D. Amazon DynamoDB | Lambda, Cloud9 and DynamoDB |
What offers a policy-based management for multiple AWS accounts. With it, you can create groups of accounts and then apply policies to these groups. You can centrally manage policies across multiple accounts without requiring custom scripts | AWS Organizations |
What can you use to delegate access to users, applications or services that don't normally have access to your AWS resources? | AWS IAM Roles |
What helps you set up a logically isolated section of your AWS cloud? | AWS VPC |
Characteristics of VPC Peering | Two VPCs in different AWS Regions and under separate AWS accounts that can share traffic between each other. VPC Peering can also be used to replicate data to geographically distinct locations for fault-tolerance, disaster recovery and redundancy |
What is the geolocation routing policy that allows for different resources to serve content based on the origin of the request? This in turn makes it possible for different versions of the website to be served. | Route 53 |