Which solution will meet these requirements with the HIGHEST availability?

An international company provides early warning about tsunamis. The company plans to use IoT devices to monitor sea waves around the world. The data that is collected by the IoT devices must reach the company’s infrastructure on AWS as quickly as possible. The company is using three operation centers around...

March 1, 2025 No Comments READ MORE +

What design will allow the company to serve both newer and earlier clients in the MOST efficient way?

A bank built a new version of its banking application in AWS using containers that content to an on-premises database over VPN connection. This application version requires users to also update their client application. The bank plans to deprecate the earlier client version. However, the company wants to keep supporting...

March 1, 2025 No Comments READ MORE +

Which architectural change should a network engineer implement to provide the DNS service in the MOST scalable way?

A data analytics company has a 100-node high performance computing (HPC) cluster. The HPC cluster is for parallel data processing and is hosted in a VPC in the AWS Cloud. As part of the data processing workflow, the HPC cluster needs to perform several DNS queries to resolve and connect...

February 27, 2025 No Comments READ MORE +

Which solution will meet these requirements?

A company has deployed a critical application on a fleet of Amazon EC2 instances behind an Application Load Balancer. The application must always be reachable on port 443 from the public internet. The application recently had an outage that resulted from an incorrect change to the EC2 security group. A...

February 25, 2025 No Comments READ MORE +

Which solution will meet this requirement with the LEAST operational effort?

A company is running multiple workloads on Amazon EC2 instances in public subnets. In a recent incident, an attacker exploited an application vulnerability on one of the EC2 instances to gain access to the instance. The company fixed the application and launched a replacement EC2 instance that contains the updated...

February 25, 2025 No Comments READ MORE +

Which combination of steps should the network engineer take to meet these requirements?

A company has expanded its network to the AWS Cloud by using a hybrid architecture with multiple AWS accounts. The company has set up a shared AWS account for the connection to its on-premises data centers and the company offices. The workloads consist of private web-based services for internal use....

February 24, 2025 No Comments READ MORE +

Which solution will meet these requirements with the LEAST amount of operational overhead?

A company has deployed Amazon EC2 instances in private subnets in a VPC. The EC2 instances must initiate any requests that leave the VPC, including requests to the company's on-premises data center over an AWS Direct Connect connection. No resources outside the VPC can be allowed to open communications directly...

February 23, 2025 No Comments READ MORE +

What design will allow the company to serve both newer and earlier clients in the MOST efficient way?

A bank built a new version of its banking application in AWS using containers that content to an on-premises database over VPN connection. This application version requires users to also update their client application. The bank plans to deprecate the earlier client version. However, the company wants to keep supporting...

February 13, 2025 No Comments READ MORE +

Which of the following are possible causes of this problem?

A network engineer has deployed an Amazon EC2 instance in a private subnet in a VPC. The VPC has no public subnet. The EC2 instance hosts application code that sends messages to an Amazon Simple Queue Service (Amazon SQS) queue. The subnet has the default network ACL with no modification...

February 10, 2025 No Comments READ MORE +

What action will resolve the availability problem?

An organization launched an IPv6-only web portal to support IPv6-native mobile clients. Front-end instances launch in an Amazon VPC associated with an appropriate IPv6 CIDR. The VPC IPv4 CIDR is fully utilized. A single subnet exists in each of two Availability Zones with appropriately configured IPv6 CIDR associations. Auto Scaling...

February 8, 2025 No Comments READ MORE +