Amazon DocumentDB is a fully managed, scalable NoSQL database service provided by AWS, designed to be compatible with MongoDB workloads. It allows developers to run MongoDB applications with high performance and availability, using a document model to store, query, and index JSON-like data.
Key features include automatic scaling to handle thousands of requests per second, built-in replication across multiple Availability Zones for high availability, and seamless integration with other AWS services like EC2, Lambda, and S3. It supports MongoDB 4.0 and 5.0 APIs, enabling easy migration from existing MongoDB environments without code changes.
As a managed service, Amazon DocumentDB handles underlying infrastructure tasks such as hardware provisioning, software patching, and backups, allowing developers to focus on building applications. It offers strong security features, including encryption at rest and in transit, fine-grained access controls, and compliance with standards like HIPAA and GDPR.
Benefits of Amazon DocumentDB include cost efficiency through pay-as-you-go pricing, improved query performance via its distributed architecture, and the ability to scale storage and compute independently. This makes it ideal for applications requiring flexible schema designs, such as content management systems, e-commerce platforms, mobile apps, and real-time analytics.
Use cases span various industries, including media and entertainment for managing large volumes of unstructured data, healthcare for patient records, and IoT for processing sensor data. With its global footprint, it ensures low-latency access across AWS regions, making it a reliable choice for modern, data-intensive applications.
Table of Contents
- Part 1: OnlineExamMaker AI Quiz Generator – The Easiest Way to Make Quizzes Online
- Part 2: 20 Amazon Documentdb Quiz Questions & Answers
- Part 3: AI Question Generator – Automatically Create Questions for Your Next Assessment
Part 1: OnlineExamMaker AI Quiz Generator – The Easiest Way to Make Quizzes Online
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Part 2: 20 Amazon Documentdb Quiz Questions & Answers
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1. What is Amazon DocumentDB primarily designed for?
A. Relational database management
B. Document database compatible with MongoDB
C. Key-value store for caching
D. Graph database for network analysis
Correct Answer: B
Explanation: Amazon DocumentDB is a fully managed document database service that supports MongoDB workloads, allowing seamless compatibility with existing MongoDB applications.
2. Which AWS service is Amazon DocumentDB built on?
A. Amazon RDS
B. Amazon Aurora
C. Amazon S3
D. Amazon EC2
Correct Answer: B
Explanation: Amazon DocumentDB is powered by the Amazon Aurora backend, providing high performance and scalability while maintaining MongoDB compatibility.
3. What is the maximum storage size for a single Amazon DocumentDB cluster?
A. 64 TB
B. 128 TB
C. 256 TB
D. 512 TB
Correct Answer: A
Explanation: Amazon DocumentDB supports up to 64 TB of storage per cluster, enabling it to handle large-scale document storage needs.
4. How does Amazon DocumentDB ensure data durability?
A. Using single-zone replication
B. Storing data across multiple Availability Zones
C. Relying on on-premises backups
D. Limiting data to a single instance
Correct Answer: B
Explanation: Amazon DocumentDB replicates data across up to 15 read replicas in multiple Availability Zones, providing high durability and fault tolerance.
5. Which protocol does Amazon DocumentDB use for compatibility?
A. SQL
B. Wire Protocol
C. HTTP
D. GraphQL
Correct Answer: B
Explanation: Amazon DocumentDB is compatible with the MongoDB Wire Protocol, allowing existing MongoDB drivers and tools to connect without modifications.
6. What is a key benefit of using Amazon DocumentDB for applications?
A. Automatic SQL query optimization
B. Seamless scalability without downtime
C. Built-in machine learning features
D. Integration with on-premises LDAP
Correct Answer: B
Explanation: Amazon DocumentDB allows you to scale storage and compute resources dynamically, often without interrupting your application.
7. In Amazon DocumentDB, what is the role of a “cluster”?
A. A single database instance
B. A collection of shards for distribution
C. A group of read replicas and a primary instance
D. A backup storage unit
Correct Answer: C
Explanation: A DocumentDB cluster consists of a primary instance for writes and up to 15 read replicas for reads, enhancing performance and availability.
8. Which feature of Amazon DocumentDB helps in monitoring performance?
A. Amazon CloudWatch
B. AWS Config
C. Amazon SQS
D. AWS Lambda
Correct Answer: A
Explanation: Amazon DocumentDB integrates with Amazon CloudWatch to provide metrics, logs, and alarms for monitoring database performance and health.
9. What type of encryption is enabled by default in Amazon DocumentDB?
A. In-transit only
B. At-rest only
C. Both in-transit and at-rest
D. Neither, it must be configured manually
Correct Answer: C
Explanation: Amazon DocumentDB automatically encrypts data both in transit using SSL/TLS and at rest using AWS KMS, ensuring comprehensive security.
10. How does Amazon DocumentDB handle read scaling?
A. By adding write instances
B. Through read replicas
C. Via automatic sharding
D. By increasing primary instance size
Correct Answer: B
Explanation: Amazon DocumentDB uses read replicas to distribute read traffic, allowing you to scale read capacity independently of write operations.
11. What is the minimum number of instances required for a DocumentDB cluster?
A. 1
B. 2
C. 3
D. 4
Correct Answer: A
Explanation: A DocumentDB cluster can start with a single instance, but for production, it’s recommended to use multiple for redundancy.
12. Which AWS Identity and Access Management (IAM) feature is used for DocumentDB access control?
A. IAM roles only
B. IAM policies and roles
C. EC2 security groups
D. VPC endpoints
Correct Answer: B
Explanation: IAM policies and roles are used to control access to Amazon DocumentDB, ensuring fine-grained permissions for users and applications.
13. What is the purpose of the “Parameter Group” in Amazon DocumentDB?
A. To manage database parameters and settings
B. To group multiple clusters together
C. To handle network configurations
D. To store backup data
Correct Answer: A
Explanation: Parameter Groups in DocumentDB allow you to customize database engine parameters, such as memory allocation and query behavior.
14. How can you perform point-in-time recovery in Amazon DocumentDB?
A. Using manual snapshots only
B. Through automated backups and snapshots
C. Via AWS Backup service exclusively
D. By exporting data to S3
Correct Answer: B
Explanation: Amazon DocumentDB supports continuous backups and point-in-time recovery using automated snapshots, allowing restoration to any second within the retention period.
15. What is a common use case for Amazon DocumentDB?
A. Transactional processing for e-commerce
B. Storing user profiles and content in apps
C. Running complex joins on structured data
D. Time-series data analysis
Correct Answer: B
Explanation: DocumentDB is ideal for applications like content management systems or social networks that require flexible, schema-less document storage.
16. Which statement is true about DocumentDB’s compatibility with MongoDB?
A. It supports all MongoDB versions
B. It is compatible with MongoDB 3.6 and later
C. It requires custom drivers for MongoDB
D. It only supports read operations from MongoDB
Correct Answer: B
Explanation: Amazon DocumentDB is compatible with MongoDB 3.6 and later, meaning most MongoDB applications can migrate with minimal changes.
17. What happens when you scale up storage in Amazon DocumentDB?
A. It requires a full cluster restart
B. Storage scales automatically without downtime
C. You must manually migrate data
D. It only scales compute, not storage
Correct Answer: B
Explanation: Amazon DocumentDB allows storage to be scaled up or down dynamically, typically without interrupting database operations.
18. How does Amazon DocumentDB handle indexing?
A. It does not support indexes
B. Indexes are created automatically
C. You can create custom indexes like in MongoDB
D. Indexes are managed by AWS separately
Correct Answer: C
Explanation: DocumentDB supports creating and managing indexes similar to MongoDB, which helps in optimizing query performance.
19. What is the default connection port for Amazon DocumentDB?
A. 27017
B. 3306
C. 5432
D. 1433
Correct Answer: A
Explanation: Amazon DocumentDB uses port 27017 by default, the same as MongoDB, to maintain compatibility.
20. Which tool can be used to migrate data to Amazon DocumentDB from an existing MongoDB database?
A. AWS Database Migration Service (DMS)
B. Amazon S3 Transfer
C. EC2 Import/Export
D. AWS Glue
Correct Answer: A
Explanation: AWS Database Migration Service (DMS) can be used to migrate data from MongoDB to Amazon DocumentDB with minimal downtime.
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Part 3: AI Question Generator – Automatically Create Questions for Your Next Assessment
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