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start learning

Question		Answer
Amazon SNS is _ based start learning		push based
Amazon SQS is _ based start learning		pull
Default SQS queue type is _. Specify its order and duplicates start learning		Standard queue. Order is not strict and can have duplicates
Other SQS queue type is _. SPecify order and duplicates start learning		FIFO queue. Ordered and without duplicates
Retetion period is a time _ _. Is up to _. Default is _ SQS Queue start learning		SQS keeps messages when no one consumes it. 14 days. 4 days.
Visibility timeout is a _. Default is _ SQS start learning		time the message is invisible in queue after consumer picks it up. 30 seconds
In SQS we specify two poolings start learning		long and short pooling
T/F Long pooling returns a response immediately even if queue is empty start learning		No - this is short polling

SQS and SNS