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NEW QUESTION 43
An organization plans to run an application in a dedicated physical server that doesn't use virtualization.
The application data will be stored in a storage solution that uses an NFS protocol. To prevent data loss, you need to use a durable cloud storage service to store a copy of your data.
Which of the following is the most suitable solution to meet the requirement?
- A. Use an AWS Storage Gateway hardware appliance for your compute resources. Configure Volume Gateway to store the application data and backup data.
- B. Use AWS Storage Gateway with a gateway VM appliance for your compute resources. Configure File Gateway to store the application data and backup data.
- C. Use an AWS Storage Gateway hardware appliance for your compute resources. Configure Volume Gateway to store the application data and create an Amazon S3 bucket to store a backup of your data.
- D. Use an AWS Storage Gateway hardware appliance for your compute resources. Configure File Gateway to store the application data and create an Amazon S3 bucket to store a backup of your data.
Answer: D
Explanation:
AWS Storage Gateway is a hybrid cloud storage service that gives you on-premises access to virtually unlimited cloud storage by linking it to S3. Storage Gateway provides 3 types of storage solutions for your on-premises applications: file, volume, and tape gateways. The AWS Storage Gateway Hardware Appliance is a physical, standalone, validated server configuration for on-premises deployments.
The AWS Storage Gateway Hardware Appliance is a physical hardware appliance with the Storage Gateway software preinstalled on a validated server configuration. The hardware appliance is a high- performance 1U server that you can deploy in your data center, or on-premises inside your corporate firewall. When you buy and activate your hardware appliance, the activation process associates your hardware appliance with your AWS account. After activation, your hardware appliance appears in the console as a gateway on the Hardware page. You can configure your hardware appliance as a file gateway, tape gateway, or volume gateway type. The procedure that you use to deploy and activate these gateway types on a hardware appliance is the same as on a virtual platform.
Since the company needs to run a dedicated physical appliance, you can use an AWS Storage Gateway Hardware Appliance. It comes pre-loaded with Storage Gateway software, and provides all the required resources to create a file gateway. A file gateway can be configured to store and retrieve objects in Amazon S3 using the protocols NFS and SMB.
Hence, the correct answer in this scenario is: Use an AWS Storage Gateway hardware appliance for your compute resources. Configure File Gateway to store the application data and create an Amazon S3 bucket to store a backup of your data.
The option that says: Use AWS Storage Gateway with a gateway VM appliance for your compute resources. Configure File Gateway to store the application data and backup data is incorrect because as per the scenario, the company needs to use an on-premises hardware appliance and not just a Virtual Machine (VM).
The options that say: Use an AWS Storage Gateway hardware appliance for your compute resources.
Configure Volume Gateway to store the application data and backup data and Use an AWS Storage Gateway hardware appliance for your compute resources. Configure Volume Gateway to store the application data and create an Amazon S3 bucket to store a backup of your data are both incorrect. As per the scenario, the requirement is a file system that uses an NFS protocol and not iSCSI devices.
Among the AWS Storage Gateway storage solutions, only file gateway can store and retrieve objects in Amazon S3 using the protocols NFS and SMB.
References:
https://docs.aws.amazon.com/storagegateway/latest/userguide/hardware-appliance.html
https://docs.aws.amazon.com/storagegateway/latest/userguide/WhatIsStorageGateway.html AWS Storage Gateway Overview:
https://www.youtube.com/watch?v=pNb7xOBJjHE
Check out this AWS Storage Gateway Cheat Sheet:
https://tutorialsdojo.com/aws-storage-gateway/
NEW QUESTION 44
A company is hosting a web application on AWS using a single Amazon EC2 instance that stores user-uploaded documents in an Amazon EBS volume. For better scalability and availability, the company duplicated the architecture and created a second EC2 instance and EBS volume in another Availability Zone placing both behind an Application Load Balancer After completing this change, users reported that, each time they refreshed the website, they could see one subset of their documents or the other, but never all of the documents at the same time.
What should a solutions architect propose to ensure users see all of their documents at once?
- A. Copy the data so both EBS volumes contain all the documents.
- B. Configure the Application Load Balancer to send the request to both servers Return each document from the correct server.
- C. Configure the Application Load Balancer to direct a user to the server with the documents
- D. Copy the data from both EBS volumes to Amazon EFS Modify the application to save new documents to Amazon EFS
Answer: D
Explanation:
Explanation
Amazon EFS provides file storage in the AWS Cloud. With Amazon EFS, you can create a file system, mount the file system on an Amazon EC2 instance, and then read and write data to and from your file system. You can mount an Amazon EFS file system in your VPC, through the Network File System versions 4.0 and
4.1 (NFSv4) protocol. We recommend using a current generation Linux NFSv4.1 client, such as those found in the latest Amazon Linux, Redhat, and Ubuntu AMIs, in conjunction with the Amazon EFS Mount Helper. For instructions, see Using the amazon-efs-utils Tools.
For a list of Amazon EC2 Linux Amazon Machine Images (AMIs) that support this protocol, see NFS Support. For some AMIs, you'll need to install an NFS client to mount your file system on your Amazon EC2 instance. For instructions, see Installing the NFS Client.
You can access your Amazon EFS file system concurrently from multiple NFS clients, so applications that scale beyond a single connection can access a file system. Amazon EC2 instances running in multiple Availability Zones within the same AWS Region can access the file system, so that many users can access and share a common data source.
NEW QUESTION 45
A company has a requirement to move 80 TB data warehouse to the cloud. It would take 2 months to transfer the data given their current bandwidth allocation.
Which is the most cost-effective service that would allow you to quickly upload their data into AWS?
- A. AWS Snowmobile
- B. AWS Direct Connect
- C. Amazon S3 Multipart Upload
- D. AWS Snowball Edge
Answer: D
Explanation:
AWS Snowball Edge is a type of Snowball device with on-board storage and compute power for select AWS capabilities. Snowball Edge can undertake local processing and edge-computing workloads in addition to transferring data between your local environment and the AWS Cloud.
Each Snowball Edge device can transport data at speeds faster than the internet. This transport is done by shipping the data in the appliances through a regional carrier. The appliances are rugged shipping containers, complete with E Ink shipping labels. The AWS Snowball Edge device differs from the standard Snowball because it can bring the power of the AWS Cloud to your on-premises location, with local storage and compute functionality.
Snowball Edge devices have three options for device configurations - storage optimized, compute optimized, and with GPU.
Hence, the correct answer is: AWS Snowball Edge.
AWS Snowmobile is incorrect because this is an Exabyte-scale data transfer service used to move extremely large amounts of data to AWS. It is not suitable for transferring a small amount of data, like 80 TB in this scenario. You can transfer up to 100PB per Snowmobile, a 45-foot long ruggedized shipping container, pulled by a semi-trailer truck. A more cost-effective solution here is to order a Snowball Edge device instead.
AWS Direct Connect is incorrect because it is primarily used to establish a dedicated network connection from your premises network to AWS. This is not suitable for one-time data transfer tasks, like what is depicted in the scenario.
Amazon S3 Multipart Upload is incorrect because this feature simply enables you to upload large objects in multiple parts. It still uses the same Internet connection of the company, which means that the transfer will still take time due to its current bandwidth allocation. References:
https://docs.aws.amazon.com/snowball/latest/ug/whatissnowball.html
https://docs.aws.amazon.com/snowball/latest/ug/device-differences.html Check out this AWS Snowball Edge Cheat Sheet: https://tutorialsdojo.com/aws-snowball-edge/ AWS Snow Family Overview:
https://youtu.be/9Ar-51Ip53Q
NEW QUESTION 46
A company has a VPC for its Human Resource department and another VPC located in different AWS regions for its Finance department. The Solutions Architect must redesign the architecture to allow the finance department to access all resources that are in the human resource department, and vice versa. An Intrusion Prevention System (IPS) must also be integrated for active traffic flow inspection and to block any vulnerability exploits.
Which network architecture design in AWS should the Solutions Architect set up to satisfy the above requirement?
- A. Establish a secure connection between the two VPCs using a NAT Gateway. Manage user sessions via the AWS Systems Manager Session Manager service.
- B. Create a Traffic Policy in Amazon Route 53 to connect the two VPCs. Configure the Route 53 Resolver DNS Firewall to do active traffic flow inspection and block any vulnerability exploits.
- C. Launch an AWS Transit Gateway and add VPC attachments to connect all departments. Set up AWS Network Firewall to secure the application traffic travelling between the VPCs.
- D. Create a Direct Connect Gateway and add VPC attachments to connect all departments. Configure AWS Security Hub to secure the application traffic travelling between the VPCs.
Answer: C
Explanation:
A transit gateway is a network transit hub that you can use to interconnect your virtual private clouds (VPCs) and on-premises networks. As your cloud infrastructure expands globally, inter-Region peering connects transit gateways together using the AWS Global Infrastructure. Your data is automatically encrypted and never travels over the public internet.
A transit gateway attachment is both a source and a destination of packets. You can attach the following resources to your transit gateway:
- One or more VPCs.
- One or more VPN connections
- One or more AWS Direct Connect gateways
- One or more Transit Gateway Connect attachments
- One or more transit gateway peering connections
AWS Transit Gateway deploys an elastic network interface within VPC subnets, which is then used by the transit gateway to route traffic to and from the chosen subnets. You must have at least one subnet for each Availability Zone, which then enables traffic to reach resources in every subnet of that zone.
During attachment creation, resources within a particular Availability Zone can reach a transit gateway only if a subnet is enabled within the same zone. If a subnet route table includes a route to the transit gateway, traffic is only forwarded to the transit gateway if the transit gateway has an attachment in the subnet of the same Availability Zone.
Intra-region peering connections are supported. You can have different transit gateways in different Regions.
AWS Network Firewall is a managed service that makes it easy to deploy essential network protections for all of your Amazon Virtual Private Clouds (VPCs). The service can be setup with just a few clicks and scales automatically with your network traffic, so you don't have to worry about deploying and managing any infrastructure. AWS Network Firewall's flexible rules engine lets you define firewall rules that give you fine-grained control over network traffic, such as blocking outbound Server Message Block (SMB) requests to prevent the spread of malicious activity.
AWS Network Firewall includes features that provide protections from common network threats. AWS Network Firewall's stateful firewall can incorporate context from traffic flows, like tracking connections and protocol identification, to enforce policies such as preventing your VPCs from accessing domains using an unauthorized protocol. AWS Network Firewall's intrusion prevention system (IPS) provides active traffic flow inspection so you can identify and block vulnerability exploits using signature-based detection. AWS Network Firewall also offers web filtering that can stop traffic to known bad URLs and monitor fully qualified domain names.
Hence, the correct answer is: Launch a Transit Gateway and add VPC attachments to connect all departments. Set up AWS Network Firewall to secure the application traffic travelling between the VPCs.
The option that says: Create a Traffic Policy in Amazon Route 53 to connect the two VPCs. Configure the Route 53 Resolver DNS Firewall to do active traffic flow inspection and block any vulnerability exploits is incorrect because the Traffic Policy feature is commonly used in tandem with the geoproximity routing policy for creating and maintaining records in large and complex configurations. Moreover, the Route 53 Resolver DNS Firewall can only filter and regulate outbound DNS traffic for your virtual private cloud (VPC). It can neither do active traffic flow inspection nor block any vulnerability exploits.
The option that says: Establish a secure connection between the two VPCs using a NAT Gateway.
Manage user sessions via the AWS Systems Manager Session Manager service is incorrect because a NAT Gateway is simply a Network Address Translation (NAT) service and can't be used to connect two VPCs in different AWS regions. This service allows your instances in a private subnet to connect to services outside your VPC but external services cannot initiate a connection with those instances.
Furthermore, the AWS Systems Manager Session Manager service is meant for managing EC2 instances via remote SSH or PowerShell access. This is not used for managing user sessions.
The option that says: Create a Direct Connect Gateway and add VPC attachments to connect all departments. Configure AWS Security Hub to secure the application traffic travelling between the VPCs is incorrect. An AWS Direct Connect gateway is meant to be used in conjuction with an AWS Direct Connect connection to your on-premises network to connect with a Transit Gateway or a Virtual Private Gateway. You still need a Transit Gateway to connect the two VPCs that are in different AWS Regions.
The AWS Security Hub is simply a cloud security posture management service that automates best practice checks, aggregates alerts, and supports automated remediation. It's important to note that it doesn't secure application traffic just by itself.
References:
https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-peering.html
https://aws.amazon.com/transit-gateway
https://aws.amazon.com/network-firewall
Check out these Amazon VPC and VPC Peering Cheat Sheets: https://tutorialsdojo.com/amazon-vpc/
https://tutorialsdojo.com/vpc-peering/
NEW QUESTION 47
A company has an On-Demand EC2 instance with an attached EBS volume. There is a scheduled job that creates a snapshot of this EBS volume every midnight at 12 AM when the instance is not used.
One night, there has been a production incident where you need to perform a change on both the instance and on the EBS volume at the same time when the snapshot is currently taking place.
Which of the following scenario is true when it comes to the usage of an EBS volume while the snapshot is in progress?
- A. The EBS volume can be used while the snapshot is in progress.
- B. The EBS volume cannot be detached or attached to an EC2 instance until the snapshot completes
- C. The EBS volume cannot be used until the snapshot completes.
- D. The EBS volume can be used in read-only mode while the snapshot is in progress.
Answer: A
Explanation:
Snapshots occur asynchronously; the point-in-time snapshot is created immediately, but the status of the snapshot is pending until the snapshot is complete (when all of the modified blocks have been transferred to Amazon S3), which can take several hours for large initial snapshots or subsequent snapshots where many blocks have changed.
While it is completing, an in-progress snapshot is not affected by ongoing reads and writes to the volume hence, you can still use the EBS volume normally.
When you create an EBS volume based on a snapshot, the new volume begins as an exact replica of the original volume that was used to create the snapshot. The replicated volume loads data lazily in the background so that you can begin using it immediately. If you access data that hasn't been loaded yet, the volume immediately downloads the requested data from Amazon S3, and then continues loading the rest of the volume's data in the background.
References:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-creating-snapshot.html
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSSnapshots.html
Check out this Amazon EBS Cheat Sheet:
https://tutorialsdojo.com/amazon-ebs/
NEW QUESTION 48
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