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NEW QUESTION # 238
A company wants to ensure that all of its Amazon EC2 instances have compliant operating system patches.
Which AWS service will meet these requirements?
Answer: A
Explanation:
AWS Systems Manager gives you visibility and control of your infrastructure on AWS. Systems Manager provides a unified user interface so you can view operational data from multiple AWS services and allows you to automate operational tasks across your AWS resources. You can use Systems Manager to apply OS patches, create system images, configure Windows and Linux operating systems, and execute PowerShell commands5. Systems Manager can help you ensure that all of your Amazon EC2 instances have compliant operating system patches by using the Patch Manager feature.
NEW QUESTION # 239
Which cloud concept is demonstrated by using AWS Compute Optimizer?
Answer: C
Explanation:
Rightsizing is the cloud concept that is demonstrated by using AWS Compute Optimizer. Rightsizing is the process of adjusting the type and size of your cloud resources to match the optimal performance and cost for your workloads. AWS Compute Optimizer is a service that analyzes the configuration and utilization metrics of your AWS resources, such as Amazon EC2 instances, Amazon EBS volumes, AWS Lambda functions, and Amazon ECS services on AWS Fargate. It reports whether your resources are optimal, and generates optimization recommendations to reduce the cost and improve the performance of your workloads. AWS Compute Optimizer uses machine learning to analyze your historical utilization data and compare it with the most cost-effective AWS alternatives. You can use the recommendations to evaluate the trade-offs between cost and performance, and decide when to move or resize your resources to achieve the best results. References: Workload Rightsizing - AWS Compute Optimizer - AWS, What is AWS Compute Optimizer? - AWS Compute Optimizer
NEW QUESTION # 240
An ecommerce company has deployed a new web application on Amazon EC2 Instances. The company wants to distribute incoming HTTP traffic evenly across all running instances.
Which AWS service or resource will meet this requirement?
Answer: A
Explanation:
An Application Load Balancer (ALB) is the best choice for distributing incoming HTTP/HTTPS traffic evenly across multiple Amazon EC2 instances. It operates at the application layer (Layer 7 of the OSI model) and is specifically designed to handle HTTP and HTTPS traffic, which is ideal for web applications.
Here is why the ALB is the correct choice:
* Layer 7 Load Balancing: The ALB works at the application layer and provides advanced routing capabilities based on content. It can inspect the incoming HTTP requests and make decisions on how to route traffic to various backend targets, which include Amazon EC2 instances, containers, or Lambda functions. This is particularly useful for web applications where you need to make routing decisions based on HTTP headers, paths, or query strings.
* HTTP and HTTPS Support: The ALB natively supports HTTP and HTTPS protocols, making it the ideal load balancer for web-based applications. It can efficiently manage and route these types of traffic and handle tasks such as SSL/TLS termination.
* Health Checks: The ALB can continuously monitor the health of the registered EC2 instances and only route traffic to healthy instances. This ensures high availability and reliability of the web application.
* Path-based and Host-based Routing: The ALB can route traffic based on the URL path or host header.
This feature allows the same load balancer to serve multiple applications hosted on different domains or subdomains.
* Integration with Auto Scaling: The ALB can integrate seamlessly with Amazon EC2 Auto Scaling. As the number of EC2 instances increases or decreases, the ALB automatically includes the new instances in its traffic distribution pool, ensuring even distribution of incoming requests.
* WebSocket Support: It also supports WebSocket and HTTP/2 protocols, which are essential for modern web applications that require real-time, bidirectional communication.
Why other options are not suitable:
* A. Amazon EC2 Auto Scaling: This service is used to automatically scale the number of EC2 instances up or down based on specified conditions. However, it does not provide load balancing capabilities. It works well with load balancers but does not handle the distribution of incoming traffic by itself.
* C. Gateway Load Balancer: This is designed to distribute traffic to virtual appliances like firewalls, IDS
/IPS systems, or deep packet inspection systems. It operates at Layer 3 (Network Layer) and is not ideal for distributing HTTP/HTTPS traffic to EC2 instances.
* D. Network Load Balancer: This load balancer operates at Layer 4 (Transport Layer) and is designed to handle millions of requests per second while maintaining ultra-low latencies. It is best suited for TCP, UDP, and TLS traffic but does not provide advanced Layer 7 routing features required for HTTP
/HTTPS traffic.
References:
* AWS Application Load Balancer Documentation
* Comparison of Elastic Load Balancing Options
NEW QUESTION # 241
Which tasks are customer responsibilities according to the AWS shared responsibility model? (Select TWO.)
Answer: C
Explanation:
The correct answer to the question is B because providing user access with AWS Identity and Access Management (IAM) is a customer responsibility according to the AWS shared responsibility model. The AWS shared responsibility model is a framework that defines the division of responsibilities between AWS and the customer for security and compliance. AWS is responsible for the security of the cloud, which includes the global infrastructure, such as the regions, availability zones, and edge locations; the hardware, software, networking, and facilities that run the AWS services; and the virtualization layer that separates the customer instances and storage. The customer is responsible for the security in the cloud, which includes the customer data, the guest operating systems, the applications, the identity and access management, the firewall configuration, and the encryption. IAM is an AWS service that enables customers to manage access and permissions to AWS resources and services. Customers are responsible for creating and managing IAM users, groups, roles, and policies, and ensuring that they follow the principle of least privilege. Reference: AWS Shared Responsibility Model
NEW QUESTION # 242
Which task does AWS perform automatically?
Answer: D
Explanation:
AWS performs some tasks automatically to help you manage and secure your AWS resources. One of these tasks is patching Amazon EC2 instances. AWS provides two options for patching your EC2 instances:
managed instances and patch baselines. Managed instances are a group of EC2 instances or on-premises servers that you can manage using AWS Systems Manager. Patch baselines define the patches that AWS Systems Manager applies to your instances. You can use AWS Systems Manager to automate the process of patching your instances based on a schedule or a maintenance window.
NEW QUESTION # 243
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