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A company runs an application that uses Amazon EC2 instance behind an ALB. Customers access the application using a custom DNS domain name. Reports have been received about errors when connecting to the application using the DNS name. The admin found that The load balancer target group shows no...

The Compute Savings Plans offer flexibility and can apply to usage across any AWS region, any AWS compute service (including AWS Fargate, not only EC2 like the EC2 Instance Savings Plans), and across different instance families. A company runs an encrypted Amazon RDS for Oracle DB instance...

AWS Systems Manager requires an IAM role for EC2 instances that it manages, to perform actions on behalf. This IAM role is referred to as an intance profile. If an instance is not managed by Systems Manager, one likely reason is that the instance does not have an instance profile, or the...

ด้วย AWS เราสามารถที่จะสร้าง Launch Template ขึ้นมาได้ ไม่ต้องคอย Manual ใส่เองทีละ Command ให้เสียเวลา มีระบบ Version ให้อีกด้วย เวลามีแก้ไข: แล้วถ้าเราใช้ DB ที่ AWS เป็นคนจัดการเองล่ะ จะเร็วกว่ามั้ย เราไม่ต้องติดตั้งเอง ก็สามารถใช้ได้เลย Migrate from VM DB to RDS กันไปเลย: ถัดมาเรามาแยก...

Manual install Wordpress on single EC2: https://learn-cantrill-labs.s3.amazonaws.com/aws-elastic-wordpress-evolution/A4LVPC.yaml Issue: take time & when rebooted, the EC2 public IP changed. A company runs an application that hosts critical data for several clients. The company uses AWS...

EFS use NFS protocol. EFS support Linux only. EFS is a private AWS Service. EFS is accessible from Inside a VPC or any on-premises locations connected to that VPC. Shared storage across linux instances is use-case is EFS ideally suited for. Users are periodically experiencing...

RDS is designed for Relational (SQL) model. RDS RR allows the system to scale for READS. RDS MultiAZ feature provides HA Functionality. The standby node of an RDS MultiAZ only accessed after a failover when it becomes the primary instance. AWS DMS can be used to help move data TO or FROM...

https://learn-cantrill-labs.s3.amazonaws.com/aws-dms-database-migration/DMS.yaml A company's AWS Lambda function is experiencing performance issues. The Lambda function performs many CPU-intensive operations. The Lambda function is not running fast enough and is creating bottlenecks in the...

https://learn-cantrill-labs.s3.amazonaws.com/awscoursedemos/0035-aws-associate-rds-snapshot-and-multiaz/A4L_WORDPRESS_AND_RDS.yaml https://learn-cantrill-labs.s3.amazonaws.com/awscoursedemos/0036-aws-associate-rds-migrating-to-aurora/A4L_WORDPRESS_AND_AURORA.yaml A company is using an...

Why shouldn't really run DBs on EC2/IaaS: Admin overhead - managing EC2 and DBHost Backup/DR Management EC2 is single AZ Features - some of AWS DB products are amazing EC2 is ON or OFF - no serverless, no easy scaling Replication - skills, setup time, monitoring & effectiveness...

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables to decouple and scale microservices, distributed systems, and serverless applications. FIFO queue preserve the order of messages. A SysOps admin needs to configure automatic rotation for Amazon RDS DB...

An application that runs on an Amazon EC2 instance needs to access and make API calls to multiple AWS services. The MOST secure way to provide access to the AWS services with MINIMAL management overhead is Use EC2 instance profiles. A company is storing media content in an Amazon S3 bucket and...

Burstable EC2 performance instances, which include T3 and T2 instances, are designed to provide a baseline level of CPU performance with the ability to burst to a higher level when required by workload. EC2 T2/T3 Unlimited mode allows users to burst beyond the baseline performance of the...

A dev is building an application. The application's front end is developed in JavaScript, and the data is stored in an Amazon DynamoDB table. During testing, the application returns an HTTP 5xx error from the strongly consistent reads to the DynamoDB table; "Internal server error (Service...

A dev is building a serverless application using AWS Lambda and must create a REST API using an HTTP GET method. To be defined to meet this requirement needs An Amazon API Gateway with a Lambda function and An exposed GET method in Amazon Route 53. An application runs on multiple EC2 instances...

วันนี้เรามาดูในส่วนของ Streaming กันบ้าง สถาปัตยกรรมการ Stream ข้อมูลสมัยใหม่เป็นยังไง? สถาปัตยกรรมการ Stream ข้อมูลที่ทันสมัยช่วยให้เรานำเข้า, ประมวลผล, และวิเคราะห์ข้อมูลความเร็วสูงปริมาณมากจากแหล่งที่มาที่หลากหลายแบบ Real-time เพื่อสร้างประสบการณ์ตอบสนองลูกค้าที่ชาญฉลาดมากขึ้น...

วันนี้เรามาดูวิธีการปรับขนาด AWS EC2 แบบอัตโนมัติ (Autoscaling) กันนะคับ ว่าคืออะไร มีประโยชน์อย่างไร: https://www.youtube.com/watch?v=4EOaAkY4pNE การปรับขนาดแบบอัตโนมัตินั้น ช่วยให้ตัว Application ยังคงมีประสิทธิภาพตามความต้องการของผู้ใช้งาน ด้วยราคาที่ต่ำที่สุดนั่นเอง (Cost Optimization)...

A user has configured a VPC with a new subnet. The user has created a security group and wants to configure that instances of the same subnet communicate with each other. The user should Configure the security group itself as the source and allow traffic on all the protocols and ports. AWS...

A business is currently running their inventory management on premises, but is looking to move into the cloud for increased performance and scalability. > For OnLine Transaction Processing (OLTP), and OnLine Analytical Processing (OLAP), DBs using row-based indexing, there is Amazon RDS. Now...

Foreign key is used to create relationships between tables in a relational DB. Structured Query Language (SQL) use to access data in a relational DB. Amazon Aurora, Oracle DB, and PostgreSQL can Amazon RDS run. Can create and modify Amazon RDS DB instances by using the AWS Command Line...