AWS Certification Pre-Exam Knowledge Refresh- Part 4

Here is the link for part 3

EC2 Auto-Scaling happens Horizontally(Adding more instances) and DB scaling happens vertically(Adding more space on existing instance).

AWS Certification Pre-Exam Knowledge Refresh- Part 3

Here is the link for Part 2

Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud. You can start with just a few hundred gigabytes of data and scale to a petabyte or more. 

Just like S3, Amazon redshift cluster is HA with in a region. For HA across regions, you need to enable cross-region replication.

AWS Certification Pre-Exam Knowledge Refresh- Part 2

Here is the link for Part 1

AWS Elastic File System EFS: Fully managed by AWS, designed only for Linux workloads. Supports petabytes(massive amount of storage), across multiple Azs.

Amazon Elastic File System (Amazon EFS) provides simple, scalable file storage for use with more than one Amazon EC2 instances in the AWS Cloud.

AWS Storage Gateway is a hybrid storage service that enables your on-premises applications to seamlessly use AWS cloud storage.

AWS Elastic Load Balancer  - Routes to various services/applications based on the request url/data. Can add multiple instances supporting application. Routing to those instances can be taken care by LB.

3 types of ELB 1. Application LB 2. Network LB 3. Classic LB

AWS Lambda - Runs set function/application/code based on triggers. SO you don't need to worry about Infrastructure or patching. Purely pay the compute time used by your code.

Max timeout for lambda execution is 15 mins or 900  seconds.

AWS Certification Pre-Exam Knowledge Refresh- Part 1

First let me begin by saying, i would not recommend doing certifications just by using some practice tests or by reading some material.

Get the free-tier subscription. Practice, experiment, do some proof of concepts.

I know you cannot implement al the concepts specially where you need large datasets to test certain concepts.

Most of the information is shared out of my notse and observations during the trainings, self-study, experimenting in my free tier subscription and some from practice tests.

The intent of sharing this information is to have a last check before you leave for an exam. 

Here is the first of a few articles i am going to share for people going to take certificaton exam. I did cleared both CP and CSAA with only 90% , so if i am misinterpreting anything, please do correct me.