AWS Cloud Practitioner Exam Preparation

General Information Introduction to AWS Certified Cloud Practitioner Examination time is around 90 minutes. Examination score is between 100-1000, and the minimum passing score is 700. Exam Content Outline Domain 1 - Cloud Concepts (26%) 1.1 Define the AWS Cloud and it’s value proposition 1.2 Identify aspects of AWS Cloud economics 1.3 List the different cloud architecture design principles Domain 2 - Security and Compliance (25%) 2.1 Define the AWS Cloud shared responsibility model 2....

January 17, 2020 · 1 min · 165 words · Eric

Setup DataGrip Connection to AWS Athena with IAM Role Profile

Instructions Step 0 - Check Local AWS CLI Config Before you start to configure DataGrip, please ensure your AWS CLI config is EXACTLY like following screenshot IAM Role Profile needs to store in the credentials You can refer to this official AWS document: Configuration basics - AWS command-Line Interface Step 1 - Install DataGrip For Mac User Option 1: If you have brew installed on your workstation, you could execute the following command in your favourite terminal 1 brew install --cask datagrip Option 2: Download the executable at https://www....

December 11, 2019 · 2 min · 217 words · Eric

AWS Storage Comparison

Block Storage vs Object Storage Block Storage: block level operations are possible one block changed, e.g piece of the file, that contains the changed data can be updated in block level Object Storage: Entire file must be removed and new file needs to be put there S3 vs EBS vs EFS S3: S3 to be used for WORM operations, e.g. Write once Read many times Scalable, size not be planned not suitable for hosting OS or Database EBS:...

November 3, 2019 · 1 min · 147 words · Eric

First 90 Days

Why Do We Fail in First 90 Days? From Employee perspective, there are several aspects that lead to a unsuccessful start Job vs expectation. Relationship with boss. Lack of training. While from Company side, they have a different view on that: Poor performance. Poor punctuality. not able to be on time. Absenteeism. Not even be able to show up. First 90 days into a new role is not just the paperwork and basic induction, like training and meeting and greets....

October 26, 2019 · 6 min · 1201 words · Eric

Apache Kafka Knowledge Quick Reference

Kafka Theory Cluster Rack Broker Every broker in Kafka is a “bootstrap server” which knows about all brokers, topics and partitions (metadata) that means Kafka client (e.g. producer, consumer etc) only need to connect to one broker in order to connect to entire cluster. At all times, only one broker should be the controller, and one broker must always be the controller in the cluster Topic Kafka takes bytes as input without even loading them into memory (that’s called zero copy) Brokers have defaults for all the topic configuration parameters Partition Topic can have one or more partition....

August 17, 2019 · 10 min · 2099 words · Eric