Application Services Flashcards Preview

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Flashcards in Application Services Deck (21)
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1
Q

What is the max filesize of an SQS message?

A

256KB

2
Q

Does SQS deliver by pulling, pushing, or both?

A

pull only

3
Q

Can autoscaling be applied to SQS?

A

yes

4
Q

Can you use SQS as a FIFO solution to your queuing managment

A

no, this is not guaranteed

5
Q

What is the retention period difference between SQS and SWF

A

SQS retains 14 days, SWF up to a year

6
Q

What type of API is SWF? message- or task-oriented

A

task-oriented

7
Q

What type of API is SQS? message- or task-oriented

A

message-oriented

8
Q

What is a Workflow starter

A

An application that can initiate a workflow

9
Q

What is a Decider

A

something that controls the flow of activity tasks in a workflow execution. If something finishes in a workflow (or fails) a decider decides what to do next

10
Q

Activity workers

A

What actually carries out the task

11
Q

What does SNS do

A

send notifications from the cloud to many different types of devices

12
Q

Whats the difference between SQS and SNS in terms of how you get messages

A

SNS is push, SQS is pull

13
Q

Can SQS Queues be prioritized?

A

no

14
Q

What is the max timeout window of SQS Job?

A

12 hrs

15
Q

What is the maximum retention period of SQS Messages

A

14 days

16
Q

What are all the types of subscribers supported by SNS

A

HTTP, HTTPS, Email, Email-JSON, SQS, Application, Lambda

17
Q

What is streaming data

A

data that is generated continuously by 1000s on data sources, sent in small kb-sizes

18
Q

What is a Kinesis Stream

A

a series of shard that get data from producers, send to consumers, wherethen gets output to other services

19
Q

How long does Kenisis store data for?

A

24 hrs

20
Q

What is data sent to Kenisis stored in

A

A shard

21
Q

How long can you increase retention in a shard for?

A

up to 7 days