ExpertMedium1 markMultiple Choice
AZ-305 · Question 33 · Domain 2.4: Design a Data Storage Solution for Non-Relational Data
You are migrating a legacy application that uses Azure Table Storage.
The application has grown significantly. It now requires global distribution, single-digit millisecond latency for reads and writes, and automatic secondary indexes. You decide to migrate to Azure Cosmos DB for Table.
Which TWO benefits does Cosmos DB for Table provide over standard Azure Table Storage? (Select TWO)
You are migrating a legacy application that uses Azure Table Storage.
The application has grown significantly. It now requires global distribution, single-digit millisecond latency for reads and writes, and automatic secondary indexes. You decide to migrate to Azure Cosmos DB for Table.
Which TWO benefits does Cosmos DB for Table provide over standard Azure Table Storage? (Select TWO)
Answer options:
A.
Financially backed SLAs for latency
B.
Lower cost per GB of storage
C.
Global distribution with multi-region writes
D.
Support for relational SQL queries with JOINs
E.
Unlimited storage capacity in a single logical partition
How to approach this question
Compare Table Storage (cheap, single region write, no latency SLA) with Cosmos DB (premium, multi-region write, strict latency SLA).
Full Answer
Financially backed SLAs for latency, Global distribution with multi-region writes
Azure Cosmos DB for Table is a premium offering compared to standard Azure Table Storage. It provides turnkey global distribution with multi-region writes (active-active), automatic secondary indexing, and financially backed SLAs for throughput, availability, consistency, and single-digit millisecond latency. Standard Table Storage is cheaper but lacks these enterprise features.
Common mistakes
Assuming Cosmos DB is cheaper. It is a premium service optimized for performance and scale, not storage cost.
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