SAP-C02 学习助手

SAP-C02 第 311 题

Lambda EC2

题目

A company runs its application on Amazon EC2 instances and AWS Lambda functions. The EC2 instances experience a continuous and stable load. The Lambda functions experience a varied and unpredictable load. The application includes a caching layer that uses an Amazon MemoryDB for Redis cluster. A solutions architect must recommend a solution to minimize the company's overall monthly costs. Which solution will meet these requirements?

中文翻译:
一家公司在 Amazon EC2 实例和 AWS Lambda 函数上运行其应用程序。 EC2 实例承受持续稳定的负载。 Lambda 函数会经历变化且不可预测的负载。该应用程序包括一个使用 Amazon MemoryDB for Redis 集群的缓存层。解决方案架构师必须推荐一种解决方案,以最大限度地降低公司的每月总体成本。哪种解决方案可以满足这些要求?

选项

A. Purchase an EC2 instance Savings Plan to cover the EC2 instances. Purchase a Compute Savings Plan for Lambda to cover the minimum expected consumption of the Lambda functions. Purchase reserved nodes to cover the MemoryDB cache nodes.

中文翻译:
购买 EC2 实例 Savings Plan 以涵盖 EC2 实例。购买 Lambda 计算节省计划以满足 Lambda 函数的最低预期消耗。购买预留节点来覆盖MemoryDB缓存节点。

B. Purchase a Compute Savings Plan to cover the EC2 instances. Purchase Lambda reserved concurrency to cover the expected Lambda usage. Purchase reserved nodes to cover the MemoryDB cache nodes.

中文翻译:
购买计算节省计划以涵盖 EC2 实例。购买 Lambda 预留并发以满足预期的 Lambda 使用量。购买预留节点来覆盖MemoryDB缓存节点。

C. Purchase a Compute Savings Plan to cover the entire expected cost of the EC2 instances, Lambda functions, and MemoryDB cache nodes.

中文翻译:
购买计算节省计划以涵盖 EC2 实例、Lambda 函数和 MemoryDB 缓存节点的全部预期成本。

D. Purchase a Compute Savings Plan to cover the EC2 instances and the MemoryDB cache nodes. Purchase Lambda reserved concurrency to cover the expected Lambda usage.

中文翻译:
购买计算节省计划以涵盖 EC2 实例和 MemoryDB 缓存节点。购买 Lambda 预留并发以满足预期的 Lambda 使用量。

答案

A

解析

正确答案:A 解析: 本题应选择 A。 正确选项: A. 购买 EC2 实例 Savings Plan 以涵盖 EC2 实例。购买 Lambda 计算节省计划以满足 Lambda 函数的最低预期消耗。购买预留节点来覆盖MemoryDB缓存节点。 选择理由: 该选项最直接地满足题干中的关键约束。做 SAP-C02 题目时,需要同时对照题干里的限定词,例如最高性能、最低运维开销、成本效益、可靠性、可扩展性、安全性、RTO/RPO、合规要求等...

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