AI-200 Data Management Services And Vector Search Practice Question
You are optimizing an enterprise Azure Cosmos DB for NoSQL vector database. Which THREE administrative or architectural practices help ensure high availability and predictable performance? (Choose three)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Choose a partition key that evenly distributes data and query load across physical partitions
Ensuring high performance and availability in Cosmos DB involves configuring consistent request unit provisioning, setting up multi-region writes, and defining effective partition keys.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Choose a partition key that evenly distributes data and query load across physical partitions
Why this is correct
Effective partitioning prevents hot spots and ensures scalable query execution.
- ✓
Enable multi-region write replication for global low-latency availability
Why this is correct
Multi-region writes allow applications to write data globally with high availability.
- ✗
Store all documents in a single partition without a partition key
Why it's wrong here
Unpartitioned containers are limited to 20GB and cause severe bottlenecks.
- ✗
Disable automatic indexing entirely across all properties
Why it's wrong here
Disabling indexing entirely breaks queries and filters across the container.
- ✓
Provision adequate Request Units (RUs) or configure autoscale throughput
Why this is correct
Sufficient RU provisioning prevents request throttling during heavy vector searches and writes.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Microsoft exam blueprint
This AI-200 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AI-200 exam.