Exam AWS Certified Cloud Practitioner topic 1 question 225 discussion

The two AWS services that use cloud-native storage that provides replication across multiple Availability Zones by default are: C. Amazon Neptune E. Amazon Redshift Amazon Neptune is a fully managed graph database service that provides high availability and durability through automatic replication of data across multiple Availability Zones. Amazon Redshift is a fully managed data warehouse service that uses cloud-native storage with automatic replication across multiple Availability Zones. Amazon ElastiCache, Amazon RDS for Oracle, and Amazon DocumentDB (with MongoDB compatibility) also provide replication across multiple Availability Zones for high availability, but they do not use cloud-native storage that provides replication by default. Instead, customers need to configure replication when setting up these services.

I think the answer provided (CD) is correct. RDS and Redshift support multi az - but not by default. You have to configure it if you want multiAZ. https://aws.amazon.com/blogs/big-data/enable-multi-az-deployments-for-your-amazon-redshift-data-warehouse/#:~:text=Amazon%20Redshift%20now%20supports%20Multi,operating%20in%20unforeseen%20failure%20scenarios.

Other services do not provide replication across multiple AZ's by default.

it is cd

B and D are correct RDS and DocumentDB. 1)Amazon RDS automatically creates a primary database (DB) instance and synchronously replicates the data to an instance in a different AZ 2)When you create instances in the cluster, Amazon DocumentDB automatically distributes the instances across the Availability Zones in a subnet group to balance the cluster. Ref: ------------------------------------------------ https://docs.aws.amazon.com/documentdb/latest/developerguide/replication.html#replication.high-availability ------------------------------------------------- https://aws.amazon.com/rds/features/multi-az/#:~:text=In%20an%20Amazon%20RDS%20Multi,instance%20in%20a%20different%20AZ

CE = CORRECT

RDS and Neptune both are replicate across AZ and the rest are not

Wow...so many different responses!

B. Amazon RDS for Oracle C. Amazon Neptune Explanation: Amazon RDS for Oracle (Option B): Amazon RDS (Relational Database Service) provides replication across multiple Availability Zones (Multi-AZ) for high availability. This includes support for Oracle database engines. Amazon Neptune (Option C): Amazon Neptune is a managed graph database service that provides replication across multiple Availability Zones for durability and high availability. Options A, D, and E serve different purposes: Amazon ElastiCache (Option A): A managed caching service that doesn't inherently provide storage replication across multiple Availability Zones. Amazon DocumentDB (Option D): A managed NoSQL document database service that provides storage replication across multiple Availability Zones. Amazon Redshift (Option E): A managed data warehouse service. While Redshift supports high availability, its replication is typically managed through distribution and backups rather than automatic Multi-AZ replication.

Focus on word "by default"

Focus on word "by default"

As per chatgpt, it is B and C

AWS services that use cloud-native storage with replication across multiple Availability Zones (AZs) by default are typically associated with high availability and durability. Two such services are: Amazon RDS for Oracle (B): Amazon RDS (Relational Database Service) is designed for high availability and automatically replicates data across multiple AZs for fault tolerance. Amazon Neptune (C): Amazon Neptune is a fully managed graph database service that replicates data across multiple AZs for high availability and data durability. So, the correct choices are B. Amazon RDS for Oracle and C. Amazon Neptune.

E is incorrect because Redshift doesn't provides replication across multiple Availability Zones BY DEFAULT https://docs.aws.amazon.com/redshift/latest/mgmt/using-multi-az.html

ChatGPT says that Amazon RDS for Oracle and Amazon Neptune are two AWS services that use cloud-native storage that provides replication across multiple Availability Zones by default

C. Amazon Neptune D. Amazon DocumentDB (with MongoDB compatibility)

Vote for CD. (original answer is correct) https://aws.amazon.com/neptune/faqs/ https://aws.amazon.com/documentdb/faqs/ https://docs.aws.amazon.com/neptune/latest/userguide/feature-overview-storage.html https://docs.aws.amazon.com/documentdb/latest/developerguide/replication.html