DynamoDB Streams concept - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to enable DynamoDB Streams on a table.

DynamoDB

aws dynamodb update-table --table-name MyTable --stream-specification StreamEnabled=[1]

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Atrue

Bon

Cenabled

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'enabled' or 'on' instead of true.

Using uppercase True which is invalid in CLI.

To enable DynamoDB Streams, the StreamEnabled parameter must be set to true.

2fill in blank

medium

Complete the code to specify the type of data captured by DynamoDB Streams.

DynamoDB

aws dynamodb update-table --table-name MyTable --stream-specification StreamViewType=[1]

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ANEW_IMAGE

BNEW_AND_OLD_IMAGES

CKEYS_ONLY

DOLD_IMAGE

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing only keys or partial images instead of all attributes.

NEW_AND_OLD_IMAGES captures the entire item, both new and old images.

3fill in blank

hard

Fix the error in the code to read records from a DynamoDB Stream using AWS CLI.

DynamoDB

aws dynamodbstreams get-records --[1] iterator123

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Ashard-iterator

BshardIterator

Csharditerator

DSharditerator

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase or incorrect casing for parameter names.

The correct parameter name is 'shard-iterator' with lowercase letters and hyphen.

4fill in blank

hard

Fill both blanks to create a DynamoDB Stream ARN for a table named 'Orders'.

DynamoDB

arn:aws:dynamodb:[1]:123456789012:table/[2]/stream/2023-01-01T00:00:00.000

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Aus-east-1

Bus-west-2

COrders

DCustomers

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong region or table name in the ARN.

The region is 'us-west-2' and the table name is 'Orders' to form the correct ARN.

5fill in blank

hard

Fill all three blanks to filter DynamoDB Stream records for INSERT events using AWS CLI.

DynamoDB

aws dynamodbstreams get-records --shard-iterator [1] | jq '.Records[] | select(.eventName == "[2]") | .[3]'

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Aiterator123

BINSERT

Cdynamodb

DMODIFY

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong eventName like MODIFY or DELETE.

Incorrect shard iterator value.

Accessing wrong JSON field.

The shard iterator is 'iterator123', eventName filter is 'INSERT', and the data is under 'dynamodb' key.