Amazon reskill Persistent Storage for Modern Apps with EFS Quiz Solutions.

Amazon reskill Persistent Storage for Modern Apps with EFS Quiz Solutions.

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How to Register for Amazon AWS re:Skill Program and earn goodies?

Go to AWS RESKILL OFFICIAL WEBSITE and register yourself either with an Amazon Account or Google Account. Fill up some basic information about yourself like name, city, state, company, etc. Then you can solve the challenges with the content available there or can also refer to our website for the practice questions.

What is Amazon AWS re:Skill and How to earn goodies and Amazon Vouchers from it?

2021 AWS re:Skill Program:

re:Skill is a tool built by CodeOps Technologies LLP in collaboration with AWS Community to let developers study and upskill/reskill on the AWS platform.

Amazon Web Services (AWS) invites you to participate in the following activities:

  • Improve Your Skills — Make the most of this platform by browsing through the learning content and taking on challenges to reskill yourself on the AWS platform.
  • Earn points by completing challenges, uploading your credentials, and other activities.
  • Connect with experts, community members & leaders, and fellow passionate enthusiasts to extend your network and propel your career to the next level.
  • All tech enthusiasts are welcome to participate. This could be your chance if you have a knack for technological breakthroughs. Go through the learning videos and complete the challenge for a chance to receive badges and points (it pays to learn, as they say!). Every week and month, new challenges are added, so come back regularly to try new ones (and keep an eye out for special challenges!).

Persistent Storage for Modern Apps with EFS Amazon Reskill Practice Questions.

Q-1 EFS is highly available and designed to be highly durable. It offers a 99.99% availability SLA. What makes the EFS’ high-availabilty and durabillty possible?

Answer: All files and directories in EFS are redundantly stored within and across multiple Regions (and not across multiple Availability Zones)

Q-2 Your WordPress website is hosted on a fleet of Amazon Elastic Compute Cloud (Amazon EC2) instances that leverage Auto Scaling to provide high availability. To ensure that the content of the WordPress site is sustained through scale up and scale down events, you need a common file system that is shared between more than one Amazon EC2 instance. Which AWS Cloud service can meet this requirement?

Answer: Amazon Elastic File System

Q-3 An instance with an unencrypted EBS volume has an unencrypted EFS filesystem mounted on it. You need to encrypt the data on an existing EFS filesystem using a KMS key. How can you accomplish this?

Answer: Create a new encrypted EFS filesystem and copy the data to it

Q-4 When using Amazon EFS, are file system names global (like Amazon S3 bucket names)?

Answer: Yes, every file system has an automatically generated ID number that is globally unique

Q-5 You want to additional data protection for the data you have stored in your EFS file systems. Which one of the following is a suitable AWS service you can use to back up your EFS file systems?

Answer: AWS Backup

Q-6 A Solutions Architect is designing a highly scalable system to track records. These records must remain available for immediate download for up to three months and then must be deleted. What is the most appropriate decision for this use case?

Answer: Store the files in Amazon S3 and create a Lifecycle Policy to remove files after 3 months

Q-7 Your team is using Amazon EFS as the platform for performing data science in AWS. Which one of the following is NOT a benefit of using EFS for data science?

Answer: Amazon EFS is both an object storage service as well as block level storage service. It supports efficient access to blocks / objects making it a very efficient storage service for use in your data science environments & perform analytics.

Q-8 You are running a container based application across different AZs within a region and your application is based on micro-service architecture, where you have multiple containers and many containers need to access data which was written by some other container within the whole micro-service based application. In other terms there is a need where multiple containers need to access the same data, what should be recommended storage we can use:

Answer: Amazon EFS

Q-9 Which of these is not a common use case for EFS?

Answer: Relational database

Q-10 You are exploring to use Amazon EFS, and your company is cost consious. Which one of the following about Amazon EFS is FALSE relating to cost optimization with EFS?

Answer: It is a MUST to do capacity reservation when you setup EFS for the first time by provisioning storage in advance (however, that gives you additional confidence in your ability to use storage in EFS when your application needs it)

Q-11 You are running a container based application across different AZs within a region and your application is based on micro-service architecture, where you have multiple containers and many containers need to access data which was written by some other container within the whole micro-service based application. In other terms there is a need where multiple containers need to access the same data, what should be recommended storage we can use:

Answer: Amazon EFS

Q-12 EFS is highly available and designed to be highly durable. It offers a 99.99% availability SLA. What makes the EFS’ high-availabilty and durabillty possible?

Answer: All files and directories in EFS are redundantly stored within and across multiple Regions (and not across multiple Availability Zones)

Q-13 An instance with an unencrypted EBS volume has an unencrypted EFS filesystem mounted on it. You need to encrypt the data on an existing EFS filesystem using a KMS key. How can you accomplish this?

Answer: Create a new encrypted EFS filesystem and copy the data to it

Q-14 Which of the following compute services can connect to an EFS file system?

Answer: Lambda, EC2 instances, ECS and EKS.

Q-15 You want to centralize and automate data backup across AWS services in the cloud and on-premises, including the data stored in EFS. Which AWS service will you choose?

Answer: AWS Backup

Q-16 Which one of the following is FALSE about Amazon Elastic File Systerm (EFS)?

Answer: Amazon EFS is a block level storage service for use with Amazon EC2. Amazon EFS can deliver performance for workloads that require the lowest-latency access to data from a single EC2 instance.

Q-17 Your application is very storage intensive and the application analyze the data very frequently (every after 2 hours), and the data is modified by multiple Amazon EC2 Linux instances. The application team believes the amount of space needed will continue to grow for the next 12 months. Which set of actions should a solutions architect take to support these needs?

Answer: Store the data in an Amazon EFS file system. Mount the file system on the application instances

Q-18 What are the benefits of using EFS as the shared storage for modern applications?

Answer: Increased productivity, improved agility, and faster deployment

Q-19 A Solutions Architect is designing a highly scalable system to track records. These records must remain available for immediate download for up to three months and then must be deleted. What is the most appropriate decision for this use case?

Answer: Store the files in Amazon S3 and create a Lifecycle Policy to remove files after 3 months

Q-20 You are responsible for performing a migration from your company’s on-premise data to the AWS cloud. You have about 500 GB of data stored in an NFS server. One requirement of this migration is to transfer some of this data to Amazon EFS and the other part to S3. Which is the easiest to use and the most cost-effective solution?

Answer: Use AWS DataSync

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This Post Has One Comment

  1. Dilkhush

    Please add this 2 new questions, which are not in list
    Yes I also take this challenge
    Quiz – Persistent Storage for Modern Apps with EFS

    Q Which one of the following is a scenario in which it is better to use Amazon EBS instead of Amazon EFS?
    You don’t need shared storage (e.g. Database)

    Q You are using Amazon EFS in your projects. Which one of the following is NOT an Administrative best practice for Amazon EFS?
    There is no need to enable encryption at rest or in transit because in Amazon EFS encryption at rest & in transit is automatic & by default and cannot be disabled.

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