ExamGecko
Search Search Login
Home Home / Amazon / ANS-C00
Question list
Search
Search

List of questions

Search
Open VPLUS File
Convert VPLUS to PDF

Related questions

You have deployed a website that utilizes CloudFront, Elastic Loadbalancer, and S3 to serve content. When users access your site, they receive a "mixed content" security warning. What is most likely the problem?
An organization has multiple applications running in VPCs across multiple AWS accounts. The network engineer has deployed a central VPC with a pair of software VPN instances that run IPSec tunnels with dynamic routing to VGWs of all application VPCs. This central VPC is connected to on-premises resources via a Direct Connect connection using a private VIF. What additional configuration is required to enable the applications in VPCs to communicate with each other and access onpremises resources?
A company is building a hybrid PCI-DSS compliant application that runs in the us-west-2 Region and on-premises. The application sends access logs from all locations to a single Amazon S3 bucket in uswest-2. To protect this sensitive data, the bucket policy is configured to deny access from public IP addresses. How should an engineer configure the network to meet these requirements?
You have two VPCs that you've peered. You created a route for VPC A to get to an instance in VPC. You are unable to ping the instance. You have double checked your security groups and NACLs. Why might this be?
You are deploying an EC2 instance in a private subnet that requires access to the Internet. One of the requirements for this solution is to restrict access to only particular URLs on a whitelist. In addition to the whitelisted URLs, the instances should be able to access any Amazon S3 bucket in the same region via any URL. Which of the following solutions should you deploy? (Choose two.)
In Amazon CloudFront, to link to your objects, if your domain name is d111111abcdef8.cloudfront.net and your object is image.jpg, then the URL for the link in your webpage will be _____.
Your website is under attack and a malicious party is stealing large amounts of data. You have default NACL rules. Stopping the attack is the ONLY priority in this case. Which two commands should you use? (Choose two.)
Which element of AWS Config can be used to help maintain internal and external compliance controls?
A bank built a new version of its banking application in AWS using containers that connect to an on-premises database over a 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 earlier clients through their onpremises version of the application to serve a small portion of the customers who haven't yet upgraded. What design will allow the company to serve both newer and earlier clients in the MOST efficient way?
A company is deploying a critical application on two Amazon EC2 instances in a VPC. Failed client connections to the EC2 instances must be logged according to company policy. What is the MOST cost-effective solution to meet these requirements?

Question 381 - ANS-C00 discussion

Report
Export

You are architecting an HPC solution in AWS. The system consists of a cluster of EC2 instances that require low-latency communications between them. Which method should you use to set up a cluster to meet these requirements?

A.
Create a VPC with one subnet in a single Availability Zone. Keep the size of the subnet equal to the number of instances required in the cluster. Launch instances for the cluster in this small subnet to guarantee low-latency networkperformance.
Answers
A.
Create a VPC with one subnet in a single Availability Zone. Keep the size of the subnet equal to the number of instances required in the cluster. Launch instances for the cluster in this small subnet to guarantee low-latency networkperformance.
B.
Create a placement group. Choose an EC2 instance type compatible with placement groups for the cluster. Launch instances for the cluster in the placement group.
Answers
B.
Create a placement group. Choose an EC2 instance type compatible with placement groups for the cluster. Launch instances for the cluster in the placement group.
C.
Launch Amazon EC2 instances with the largest available number of cores and RAM. Attach all instances to an Amazon EBS PIOPS volume. Implement a shared memory system across all instances in the cluster, using this shared EBSvolume to minimize latency of communication.
Answers
C.
Launch Amazon EC2 instances with the largest available number of cores and RAM. Attach all instances to an Amazon EBS PIOPS volume. Implement a shared memory system across all instances in the cluster, using this shared EBSvolume to minimize latency of communication.
D.
Choose an EC2 instance type that offers enhanced networking. Attach a 10-Gbps non-blocking elastic network interface to the instances. Configure the elastic network interface to optimize network performance to reduce latency.
Answers
D.
Choose an EC2 instance type that offers enhanced networking. Attach a 10-Gbps non-blocking elastic network interface to the instances. Configure the elastic network interface to optimize network performance to reduce latency.
Suggested answer: B

Explanation:

Explanation:

Placement groups are recommended for applications that benefit from low network latency, high network throughput, or both.

A is incorrect because the size of a subnet has no impact on network performance. C is incorrect because an EBS volume cannot be shared between EC2 instances. D is only half the solution because the enhanced networking affects the network behavior of an EC2 instance but not the network infrastructure between instances.

Show Answer
asked 16/09/2024
Ajay Vijayan
34 questions
PreviousPreviousNextNext
User
Your answer:
0 comments
Sorted by

Leave a comment first

ExamGecko

Copyright @2023 ExamGecko | All right reserved

Mail us: [email protected]
About us
Contact us
Twitter X
Facebook
Medium
Convert VPLUS to PDF
Open VPLUS files Easily and Quickly
Privacy Policy
Disclaimer
Terms