AWS Serverless Microservices with Patterns and Best Practices - Amazon SQS Short and Long Polling

The video tutorial explains Amazon SQS's short and long polling methods for receiving messages from queues. Short polling queries a subset of servers, often resulting in empty responses, while long polling queries all servers, reducing empty responses and costs. Long polling is recommended for its efficiency and cost-effectiveness, though short polling may be suitable in certain scenarios. The tutorial covers how to consume messages using both methods and highlights the benefits of long polling.

What is the default polling method used by Amazon SQS?

• Long polling

• Priority polling

• Short polling

• Round-robin polling

How does long polling help reduce costs in Amazon SQS?

• By decreasing the message size

• By reducing the number of empty responses

• By shortening the polling wait time

• By increasing the number of servers queried

What is the maximum wait time for long polling in Amazon SQS?

• 10 seconds

• 15 seconds

• 25 seconds

• 20 seconds

Which polling method is recommended to avoid empty responses?

• Long polling

• Priority polling

• Round-robin polling

• Short polling

In what scenario might short polling be preferable over long polling?

• When immediate responses are needed

• When the queue has more than 1000 messages

• When cost reduction is a priority

• When querying all servers is necessary