Term
| SQS was first service on the platform? True or False |
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Definition
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Term
| What is the SQS distributed system do? |
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Definition
| Enables web apps to quickly and reliably queue messages in one component in the application gets to be consumed by another component. |
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Term
| Decouple apps so that they run independently for SQS easing message management between components. (True/False) |
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Definition
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Term
| SQS can be used as a buffer to RDS. We can generate logs/second and then write them to RDS. EC2 instances then package the request as a message to SQS. |
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Definition
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Term
| Visibility Timeout for SQS |
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Definition
| period of time during which Amazon SQS prevents other components from receiving and processing the message. |
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Term
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Definition
| Allows you to postpone the delivery of new messages in a queue for a specific number of seconds. |
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Term
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Definition
| Queue URL, message ids, and receipt handle. Queue URL - queue identifier which includes queue name. Message Id - unique id assigned for each message. Receipt handle - each time you receive a message from the queue. |
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Term
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Definition
| provide a loose-FIFO capability that preserves the order of the messages. |
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Term
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Definition
| exactly once, which means that each message is delivered once and remains available until a consumer processes it and deletes it. |
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Term
| Create a new FIFO queue for your application or delete existing standard queue and recreate it as a queue. True or False? |
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Definition
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Term
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Definition
| Queue that other queues can target to send messages that can't be processed successfully. |
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Term
| Dead letter queue of a FIFO queue must also be a FIFO queue. |
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Definition
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Term
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Definition
| number of times a message can be sent before being sent to a dead letter queue. |
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Term
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Definition
| send messages to dead letter queue after max receives |
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Term
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Definition
| Enables polling of messages continuously and returns the result immediately. |
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Term
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Definition
| SQS long polling is way to retrieve messages from the queue. |
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Term
| You can enable long polling by Receive Message Wait Time to a value greater than 0. |
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Definition
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Term
| Max long poll out time is 20 seconds. |
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Definition
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Term
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Definition
| Between 1 minute and 14 days. Max is 14 days. |
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Term
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Definition
| Value between 1 and 256KB. |
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Term
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Definition
| Maximum message size accepted by Amazon SQS |
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Term
| Receive Message Wait Time |
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Definition
| maximum amount of time that a long polling receive call will wait for a message to become available before returning an empty response. |
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Term
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Definition
| Maximum Number of times a message can be received before it is sent to the Dead Letter queue. |
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Term
| Can I share messages between queues in different regions? |
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Definition
| Each Amazon SQS queue is independent within each region. |
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Term
| What is the maximum number of inflight messages per standard queue? |
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Definition
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Term
| For FIFO there are 20,000 inflight messages per queue? |
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Definition
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Term
| How can I determine the time in queue value? |
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Definition
| Determine the time in queue value by requesting the SentTimeStamp attribute. |
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Term
| Amazon SNS follows the "publish-subscribe" messaging paradigm with notifications being delivered to clients? |
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Definition
| Use a "push" mechanism that eliminates the need to check or poll for updates. |
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Term
| When you publish to a topic, does Amazon publish to each subscriber? |
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Definition
| Yes Amazon does publish to each subscriber. |
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Term
| To prevent messages from being lost, Amazon stores messages across multiple AZs? |
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Definition
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Term
| Data format of SNS is JSON |
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Definition
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Term
| What are the SNS subscription protocol types? |
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Definition
| HTTP, HTTPS, Email, Email-JSON, SQS, Lambda, Application, SMS. |
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Term
| What are the subscribers for Amazon SNS? |
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Definition
| Lambda, SQS, HTTP/S, Email, SNS. |
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