Amazon Web Services - Simple Notification Service (SNS) Overview

What is the purpose of the AWS Identity and Access Management (IAM) policies in SNS?

• To control who can publish or subscribe to a topic.

• To manage the storage of SNS messages.

• To monitor the performance of SNS services.

• To configure the billing for SNS usage.

What is a key feature of SNS regarding message delivery?

• High availability and durability, ensuring message delivery even during infrastructure issues.

• Low latency in message processing and delivery.

• Limited message retention period to save storage costs.

• Inability to handle large volumes of messages.

What is the function of the AWS CloudWatch in relation to SNS?

• It provides a user interface for managing SNS topics.

• It monitors resource utilization and can trigger SNS notifications based on defined thresholds.

• It stores data in a database for later retrieval.

• It automatically scales resources based on user demand.

What is the difference between SNS and SQS?

• SNS is a messaging service for notifications, while SQS is a message queuing service for temporary message storage.

• SNS is used for long-term data storage, while SQS is for real-time data processing.

• SNS is a database service, while SQS is a file storage service.

• SNS is a service for sending emails, while SQS is a service for managing user accounts.

What is the main advantage of using SNS for sending alerts?

• It allows operators to receive timely notifications about application issues.

• It reduces the overall cost of application development.

• It provides a user-friendly interface for managing alerts.

• It eliminates the need for any monitoring tools.

What is Amazon Simple Notification Service (SNS)?

• A web service that automates the process of sending notifications to subscribers, supporting both application-to-person and application-to-application communication.

• A cloud storage service for storing and retrieving any amount of data at any time.

• A service that provides virtual servers for hosting applications and websites.

• A platform for managing and analyzing big data in real-time.

What is the unique feature of SNS regarding message protocols?

• It supports only one protocol for message delivery.

• It supports multiple protocols, allowing flexibility in message delivery.

• It does not support any message protocols.

• It requires a specific protocol for each message type.

What is the first step to create an SNS topic?

• Go to the Amazon SNS dashboard and click on the Create Topic button.

• Open the AWS CLI and type 'create sns topic'.

• Send an email to AWS support requesting a new SNS topic.

• Log into your AWS account and navigate to the EC2 dashboard.

How does SNS prevent data loss?

• By storing data across multiple availability zones.

• By using a single data center for storage.

• By encrypting data at rest only.

• By limiting access to authorized users only.

What triggers an AWS CloudWatch alarm in relation to SNS?

• When the CPU utilization of an instance goes above 80%.

• When the memory usage of an instance exceeds 70%.

• When the disk space of an instance falls below 10%.

• When the network traffic of an instance is less than 5 Mbps.