Dynamo Flashcards

1
Q

what is capacity?

A

How fast reads and/or writes are

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2
Q

how fast is 1 WCU

A

write 1kb per second

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3
Q

how fast is 1 RCU

A

read 4 kb per second

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4
Q

what is PITR

A

point in time recovery

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5
Q

is PITR enabled by default?

A

no

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6
Q

is Dynamo a good fit for SQL

A

no

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7
Q

is dynamo a good fit for NoSQl

A

yeah

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8
Q

is dynamo a good fit for key/value stuff?

A

yea p good fit

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9
Q

how do you execute SQL on Dynamo?

A

you CANT

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10
Q

How is Dynamo billed?

A

based on RCU, WCU, storage, and features (so servers/infra cost)

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11
Q

How many Local Secondary Index can be on a table?

A

5

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12
Q

What is Local Secondary Index?

A

Allows you to use another attribute as a Sort Key

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13
Q

Limit of Global Secondary Index per table?

A

20

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14
Q

what is a global secondary intex?

A

lets you define alteranive Particiton key AND Sort Key

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15
Q

Can you get strong consistenc with a global secondary index?

A

NO

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16
Q
A