ElastiCache Node Types are the server instances that host your cache data. Various types of nodes are available, each optimized for different cache workloads, memory, and CPU usage. Each node type offers a balance between resource capacity, data replication, and performance. When you create a cache…ElastiCache Node Types are the server instances that host your cache data. Various types of nodes are available, each optimized for different cache workloads, memory, and CPU usage. Each node type offers a balance between resource capacity, data replication, and performance. When you create a cache cluster, you can choose the appropriate node type that suits your application requirements. Some common node types are cache.t2, cache.m3, cache.r3, etc. You can select the correct node type based on the required storage size, the purpose of caching, and the desired performance characteristics.
Guide: Amazon ElastiCache Node Types
ElastiCache greatly simplifies the setup and management of in-memory cache environments in cloud architecture.
Why is it important? ElastiCache node types determine memory capacity, CPU capability and network performance. They are important to adequately meet your application requirements with respect to performance, memory, and IO throughput. Essential for data partitioning strategies and offering the flexibility needed to handle diverse workloads.
What it is? ElastiCache Node Types provide different configurations of CPU, memory, network performance and I/O throughput. It ranges from small types ideal for small applications to instances designed for IO-intensive, latency-sensitive applications.
How it works? You choose the right instance for your applications based on memory capacity, CPU requirements and network performance. Each instance type offers different levels of these aspects. ElastiCache also allows scaling your instances vertically and horizontally.
Exam Tips: Answering Questions on ElastiCache Node Types 1) Understand the different ElastiCache Node Types, and what each is optimized for. 2) Remember how to choose the right instance based on your application's resource requirements. 3) Be aware of how vertical and horizontal scaling is achieved. 4) Understand how node types are linked with data partitioning strategies.
AWS Certified Solutions Architect - ElastiCache Node Types Example Questions
Test your knowledge of ElastiCache Node Types
Question 1
You are working on a Node.js application that requires high-speed caching to meet the demands of a read-heavy workload. Your application uses Redis, and you want to maximize read performance. Which ElastiCache node type should you choose?
Question 2
You have a web application using ElastiCache with Redis. A new requirement needs the cache to store the user's session information, which includes sensitive data. Which ElastiCache node type would best suit the requirement?
Question 3
An organization wants an ElastiCache instance type that is optimized for compute-heavy workloads, such as analytics and search processing. Which ElastiCache node type should be selected?
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