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NEW QUESTION # 50
A company has a workload that requires data to be collected, analyzed, and stored on premises. The company wants to extend the use of AWS services to run on premises with access to the company network and the company's VPC.
Which AWS service meets this requirement?
Answer: C
Explanation:
AWS Outposts is an AWS service that meets the requirement of running AWS services on premises with access to the company network and the company's VPC. AWS Outposts is a fully managed service that extends AWS infrastructure, AWS services, APIs, and tools to virtually any datacenter, co-location space, or on-premises facility for a truly consistent hybrid experience. AWS Outposts is ideal for workloads that require low latency access to on-premises systems, local data processing, or local data storage2.
NEW QUESTION # 51
A company has data lakes designed for high performance computing (HPC) workloads. Which Amazon EC2 instance type should the company use to meet these requirements?
Answer: A
Explanation:
For high performance computing (HPC) workloads, compute resources play a critical role in delivering the necessary processing power and efficiency. HPC workloads are typically computationally intensive, often requiring a large number of CPU cycles to solve complex problems. These workloads benefit most from instances that provide powerful processors and high clock speeds, which is why Compute optimized instances (Answer B) are the best choice in this scenario.
Why Compute Optimized Instances (C Instances)?
* Designed for Compute-Intensive Tasks: Compute optimized instances in Amazon EC2, such as the C6i or C5 series, are designed to offer high compute performance, low cost, and consistent CPU power.
These instances are ideal for workloads like HPC, which require a high level of processing per second.
* High Performance CPUs: The compute optimized instance family typically uses the latest-generation processors, such as AWS Graviton2 or Intel Xeon Scalable processors, which provide a higher number of virtual CPUs (vCPUs) and increased clock speeds compared to other instance types. This matches the need for HPC workloads to maximize throughput and minimize compute times.
* Use Case Alignment: HPC workloads such as genomic research, computational fluid dynamics (CFD), financial modeling, and 3D rendering require high levels of CPU-bound tasks. Compute optimized instances provide the best CPU-to-memory ratio to handle these efficiently, leading to faster processing times and cost efficiency.
Comparison with Other Instance Types:
* A. General Purpose Instances: These are versatile and balanced instances (e.g., T3 or M6i) that are suitable for various workloads but do not provide the specialized compute performance required for HPC. They offer a balanced mix of compute, memory, and networking but are not optimal for HPC workloads where computational power is critical.
* C. Memory Optimized Instances: While these instances (e.g., R5, X1) are ideal for memory-intensive workloads such as in-memory databases (e.g., SAP HANA) or real-time data analytics, they do not provide the specialized compute power necessary for HPC tasks that require heavy CPU processing.
* D. Storage Optimized Instances: These instances (e.g., I3, D3) are designed for workloads that need high disk throughput, like big data or transactional databases. While these are excellent for storage- heavy applications, they are not optimized for compute-intensive HPC workloads.
Amazon EC2 Compute Optimized Family (C Instances)
* C6i Instances: Based on 3rd Gen Intel Xeon Scalable processors, C6i instances offer up to 15% better price/performance compared to previous generation C5 instances. These are ideal for high compute and HPC workloads.
* C5 Instances: These are built for compute-intensive workloads like batch processing, distributed analytics, and high-performance web servers. They offer a high level of sustained CPU performance.
AWS Reference Links:
* Amazon EC2 Instance Types
* Amazon EC2 Compute Optimized Instances
* HPC on AWS
In conclusion, Compute optimized instances (B) are the best choice for HPC workloads due to their high compute performance, optimized CPU architecture, and suitability for computationally intensive tasks.
NEW QUESTION # 52
Which AWS service is a cloud security posture management (CSPM) service that aggregates alerts from various AWS services and partner products in a standardized format?
Answer: C
Explanation:
AWS Security Hub is a cloud security posture management (CSPM) service that performs security best practice checks, aggregates alerts, and enables automated remediation. Security Hub collects findings from the security services enabled across your AWS accounts, such as intrusion detection findings from Amazon GuardDuty, vulnerability scans from Amazon Inspector, and sensitive data identification findings from Amazon Macie. Security Hub also collects findings from partner security products using a standardized AWS Security Finding Format, eliminating the need for time-consuming data parsing and normalization efforts. Customers can designate an administrator account that can access all findings across their accounts. Reference: AWS Security Hub Overview, AWS Security Hub FAQs
NEW QUESTION # 53
Which AWS service or feature enables users to encrypt data at rest in Amazon S3?
Answer: A
Explanation:
Server-side encryption is an encryption option that Amazon S3 provides to encrypt data at rest in Amazon S3. With server-side encryption, Amazon S3 encrypts an object before saving it to disk in its data centers and decrypts it when you download the objects. You have three server-side encryption options to choose from: SSE-S3, SSE-C, and SSE-KMS. SSE-S3 uses keys that are managed by Amazon S3. SSE-C allows you to manage your own encryption keys. SSE-KMS uses keys that are managed by AWS Key Management Service (AWS KMS)5.
NEW QUESTION # 54
Which benefit is always free of charge with AWS, regardless of a user's AWS Support plan?
Answer: A
NEW QUESTION # 55
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