Objects are cached for the life of the TTL (Time to Live).

Distribution: A collection of Edge Locations for a given CDN configuration.

Origin: A CDN has an origin which provides the files that the CDN will distribute:.

Edge locations are not just READ only.

An Edge location is where content will be cached.

It provides an intuitive account switching menu on the AWS GUIвЂ™s top navigation bar.

It is useful to test functionality that is dependant on an accountвЂ™s specific roles and privileges (e.g.

It allows users to вЂњsudoвЂќ to different accountsвЂ™ without having to enter account credentials.

It allows running SQL queries on incoming data.

Data is sent to a Elasticsearch cluster.

It can hook lambda so that it is processed directly.Data retention is between 24 hrs and 7 days.It stores the data from producers (EC2, phones, iOT devices).Out of the box вЂњpresetsвЂќ for popular formats.$ $2.00 per 100,000 Notifications over Email $0.75 per 100 Notification deliveries over SMS.

$0.06 per 100,000 Notification deliveries over HTP.

Messages are stored redundantly across multiple AZ.

It provides the capability to send notifications to users (SMS, e-mail, etc.).

It keeps track of all tasks and events in an application.

It ensures that tasks are processed only once.

It ensures that tasks are assigned only once and never duplicated.

It is task orientated rather than message-orientated.

Deciders: The decider is a program that controls the coordination of tasks (their ordering, concurrency, scheduling, etc).

Workers: Programs that interact with SWF to get tasks, process received tasks, and return results.

Domains: Domains scope related activity types, tasks lists, and so on.

It keeps track of the application state without requiring a user-provided application for this purpose.

It ensures that tasks are only assigned once.

It is a solution for workflows that involve human or human-like interaction.

There is no вЂњonly once deliveryвЂќ guarantee.

There is a long polling mechanism which allows to wait until a message arrives to the queue.

Default timeout: 30 seconds (may be increased).

Visibility timeout: the amount of time the message becomes invisible whilst being picked up by a reader client (!).

Messages may be kept in the queue from 1 minute to 14 days.

It is a pull rather than a push service.

Installation of the AWS CLI toolДЄpplication Services (Simple Queue Service) SQS Note: Items with a bracketed exclamation mark (!) have consistently appeared on mock exams. My source material was primarily the A Cloud Guru course and the AWS documentation.

This is a rather rough outline that contains key points relevant to the Amazon Certified Solutions Architect (Associate) exam. Running Apache on the Amazon AMI EC2 Instance.Outline for the Amazon Certified Solutions Architect (Associate) exam.

Aws postgresql lambda 2018