[Solved] Identify the error in this DynamoDB table definition snippet:{ "AttributeDefinitions": [ {"AttributeName": "UserId", "AttributeType": "S"} ], "KeySchema": [ {"AttributeName": "UserId", "KeyType":... | AWS

AWS - DynamoDB

Identify the error in this DynamoDB table definition snippet:

{
  "AttributeDefinitions": [
    {"AttributeName": "UserId", "AttributeType": "S"}
  ],
  "KeySchema": [
    {"AttributeName": "UserId", "KeyType": "RANGE"}
  ]
}

AAttributeType should be N instead of S

BPartition key is missing; RANGE key cannot be alone

CKeyType RANGE is correct for partition key

DNo error; definition is valid

Step-by-Step Solution

Solution:

Step 1: Check key schema requirements
DynamoDB requires a partition key (KeyType=HASH) in key schema.
Step 2: Identify missing partition key
Only RANGE key is defined; partition key is missing, causing error.
Final Answer:
Partition key is missing; RANGE key cannot be alone -> Option B
Quick Check:
Partition key (HASH) is mandatory [OK]

Quick Trick: Partition key (HASH) must always be defined [OK]

Common Mistakes:

MISTAKES

Defining only RANGE key without HASH key
Confusing KeyType values
Assuming attribute type must be N

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Identify the error in this DynamoDB table definition snippet:

Step 1: Check key schema requirements

Step 2: Identify missing partition key

Final Answer:

Quick Check:

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