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SWE 645 FINAL EXAM QUESTIONS AND VERIFIED ANSWERS..

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SWE 645 FINAL EXAM QUESTIONS AND VERIFIED ANSWERS

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DAX has


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SDK support, is availoable in n. virginia, oregon, ireland, tokyo, n. carolina .
supports r3 instances and cloud formation support has just been added.




Data is not pushed to consumers


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they poll Kafka topics and read




Producers can batch records

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Producer can send records as they occur or can batch them to a
configurable size and then send them together - Grouping records
together reduces network traffic




Consumer groups are way for consumers


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to work together to consume in parallel from a topic




Producer Configurations Retries greater than 0


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# of retries




Four key characteristics of serverless computing


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No server to provision or manage
Scales with usage
Never pay for idle - only pay for what you use, that is when your code is
running
Availability and fault tolerance built in

,Point-to-Point


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there is one, and only one, message consumer for each message




User Operator


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Manages Kafka users




• A message is simply an


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array of bytes as far as Kafka is concerned




Scaling is based on


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throughput and size

, Time to live (TTL)


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a feature that offers the ability to expire your data when it's not needed in
DynamoDB




Min In-sync Replicas


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Refers to the number of replicas that must be in-sync for a partition of the
topic to be considered available




Sequence of characters in 'single' or "double quotes"


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string literals




Strings are immutable


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Once assigned a value to a string, it can't be mutated or changed.

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