Cloud Foundations Quizzes and Answers

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The following quizzes and answers covers other aspect of computer information systems and technology

  1. Which feature of AWS allows you to deploy a new application for which the requirements may change overtime?

    Elasticity.

  2. What advantages do you get from using the AWS cloud? (choose 2)

    (i) Trade capital expense for variable expense, and (ii) Stop guessing about capacity.

  3. Which AWS service is used to enable multi-factor authentication?

    AWS IAM.

  4. What are the advantages of Availability Zones? (choose 2)

    (i) They provide fault isolation, and (ii) They are connected by low-latency network connections.

  5. Which AWS support plans provide support via email, chat and phone? (choose 2)

    (i) Enterprise, and (ii) Business.

  6. What are two ways an AWS customer can reduce their monthly spend? (choose 2)

    (i) Turn off resources that are not being used, and (ii) Reserve capacity where suitable.

  7. A company would like to maximize their potential volume and RI discounts across multiple accounts and also apply service control policies on member accounts. What can they use to achieve these benefits?

    AWS Organizations.

  8. Which of the following are NOT a benefits of AWS cloud computing?

    (i) High latency, and (ii) Temporary and disposable resources.

  9. In the Shared Responsibility Model, for which aspect of securing the cloud customers responsible?

    Security in the cloud.

  10. Which of the following is a compute service?

    Amazon EC2.

  11. Which of the following Cloud Computing models assists in removing theneed to manage operating systems on its own by an organization?

    Platform-as-a-service (PaaS).

  12. Your company is trying to deploy a two-tier, highly available web applicationto AWS. The application needs a storage layer to store artifacts such as photos and videos. Which of the following services can best be used as the underlying storage mechanism?

    Amazon S3.

  13. When using on-demand instances in AWS, which of the following is af alse statement about its cost?

    You have to pay the termination fees if you terminate the instance.

  14. A company is deploying a new two-tier web application in AWS. Where should the most frequently accessed data be stored so that the application’s response time is optimal?

    Amazon Elasticache.

  15. Which of the following services can be used to identify the user that made the API call, when an Amazon Elastic Compute Cloud (Amazon EC2) instance is terminated?

    AWS CloudTrail.

  16. For mobile applications, which of the following allows client devices access to AWS resources?

    Amazon Cognito.

  17. Which of the following AWS services use Edge Locations for the purpose of caching content?

    AWS CloudFront.

  18. Which of the following services provides object-level storage in AWS?

    Amazon S3.

  19. Which of the following is not a supported database engine in the AWS RDS service?

    Database2 (DB2).

  20. What does the term “Economies of scale” mean?

    It means that you save more when you consume more.

  21. Which of the following AWS offering allows customers to find, buy, and immediately start using software solutions in their AWS environment?

    AWS Marketplace.

  22. Why is AWS more economical than traditional data centers for applications with varying compute workloads?

    Amazon EC2 instances can be launched on demand when needed.

  23. Which AWS service would simplify the migration of a database to AWS?

    AWS Database Migration Service (AWS DMS).

  24. Which AWS networking service enables a company to create a virtual network within AWS?

    Amazon Virtual Private Cloud (Amazon VPC).

  25. Which of the following is an AWS responsibility under the AWS shared responsibility model?

    Maintaining physical hardware.

  26. How would a system administrator add an additional layer of log insecurity to a user's AWS Management Console?

    Enable multi-factor authentication.

  27. Which service would be used to send alerts based on Amazon Cloud Watch alarms?

    Amazon Simple Notification Service (Amazon SNS).

  28. Where can a user find information about prohibited actions on the AWS infrastructure?

    S Acceptable Use Policy.

  29. A Large company is interested in avoiding long-term contracts and moving from fixed costs to variable costs. What is the value proposition of AWS for this company?

    Pay-as-you-go pricing.

  30. What is the availability and durability rating of S3 Standard Storage Class?

    99.999999999% Durability and 99.99% Availability.

  31. If an object is stored in the Standard S3 storage class and you want to move it to Glacier, what must you do in order to properly migrate it?

    Create a lifecycle policy that will migrate it after aminimum of 30 days.

  32. What are the primary benefits of using Lambda? (choose 2)

    (i) Run code without provisioning server, and (ii) Pay for only the compute time you consume.

  33. If you have a set of frequently accessed files that are used on a daily basis, what S3 storage class should you store them in?

    Standard.

  34. Under what circumstances would someone want to use ElastiCache? (choose 2)

    (i) They need in-memory data store service, and (ii) The need improved improve the performance of their webapplication.

  35. Derek is running a web application and is noticing that he is paying for way more server capacity then is required. What AWS feature should Derek set up and configure to ensure that his application is automatically adding/removing server capacity to keep in line with the required demand?

    Auto Scaling.

  36. What are the benefits of AWS Organizations? (choose 2)

    (i) Automate AWS account creation and management, and (ii) Centrally manage access polices across multiple AWS accounts.

  37. If you are using an on-demand EC2 instance, how are you being charged for it?

    You are charged per second, based on an hourly rate, and there are no termination fees.

  38. Moses is managing a web application running on dozens of EC2 servers. He is worried that if something goes wrong with one of the servers he will not know about it in a timely manner. What solution could you offer to help him keep updated on the status of his servers?

    Configure SNS notifications based on CloudWatch EC2 metric alarm.

  39. What best describes the concept of fault tolerance?

    The ability for a system to withstand a certain amount of failure and still remain functional.

  40. What are the four primary benefits of using the cloud/AWS?

    Fault tolerance, scalability, elasticity, and high availability.

  41. What best describes an AWS region?

    An isolated collection of AWS Availability Zones, of which there are many placed all around the world.

  42. What TWO services/features are required to have highly available and fault tolerant architecture in AWS?

    (i) Elastic Load Balancer, and (ii) Auto Scaling.

  43. The concept of elasticity is most closely associated with which of thefollowing?

    Auto Scaling.

  44. What is one benefit AND one drawback of buying a reserved EC2 instance? (choose 2)

    (i) Reserved instances can be purchased as a significant discount over on-demand instances, and (ii) You are locked in to either a one- or three-year pricing commitment.

  45. What is the purpose of a DNS server?

    To convert common language domain names to IP addresses.

  46. What best describes the concept of high availability?

    The ability for a system be accessible when you attempt to access it.

  47. Children's All Saints Hospital has millions of old medical records that they must save for regulatory reasons. These records will most likely never be accessed again. What is the best and most cost effective S3 storage option that will meet the hospitals needs?

    Glacier.

  48. Jacky is creating a website using AWS infrastructure. She has a great idea for a domain name but needs to see if it's available and, if so,register it. What AWS service will allow her to do this?

    Route 53.

  49. Moses is logged into his company's AWS account. He tries to access EC2 but is getting an error. What is the most likely reason why he cannot access EC2?

    There is not an IAM access policy attached to his IAM user.

  50. If you want to have SMS or email notifications sent to various members of your department with status updates on resources in your AWS account, what service should you choose?

    SNS.

  51. Under what circumstances would you choose to use the AWS service CloudTrail?

    When you want to log what actions various IAM users are taking in your AWS account.

  52. What SQL database engine options are available in RDS?

    Maria DB, MySQL, and PostreSQL.

  53. Which AWS service uses a combination of publishers and subscribers?

    SNS.

  54. In the AWS Shared Responsibility Model, what is AWS responsible for? (choose 2)

    (i) Physical security of the AWS data centers, and (ii) The maintenance of the hosts virtualization software.

  55. What is a main benefit of consolidated billing?

    Gain a volume discount for usage across all your AWS accounts.

  56. What best describes the difference between the TCO Calculator and the Cost Explorer?

    The TCO Calculator helps you estimate the cost savings ofusing AWS; the Cost Explorer help you analyze current AWS usage charges.

  57. What categories fall under those analyzed by the AWS Trusted Advisor program? (choose 2)

    (i) Cost optimization, and (ii) Fault tolerance.

  58. What is the most common type of storage used for EC2 instances?

    Elastic Block Store (EBS).

  59. When you create and S3 bucket, what rules must be followed regarding the bucket name? (choose 2)

    (i) Bucket names must be between 3-63 characters in length, and (ii) Bucket names must be unique across all of AWS.

  60. What are the benefits of DynamoDB? (choose 3)

    (i) Automatic scaling of throughput capacity, (ii) Supports both document and key-value store data model, and (iii) Single-digit millisecond latency.

  61. What AWS service help you estimate the cost of using AWS vs. an on-premises data center?

    Cost Explorer.

  62. What best describes the concept of scalability?

    The ability for a system to grow in size, capacity, and/or scope.

  63. What are the TWO main security layers (firewalls) used inside a VPC?

    Network Access Control List (NACL) and Security Group.

  64. What is the major difference between AWS's RDS and DynamoDB database services?

    RDS offers SQL database options, and DynamoDB offer sa NoSQL database option.

  65. What are the advantages of cloud computing?

    Elasticity - you need not worry about capacity; Variable expense; The ability to 'go global' in minutes; and Increased speed and agility.

  66. IAM policies are written using ________

    JSON.

  67. When creating an IAM policy, what are the two types of access that can be granted to a user (choose 2)

    (i) AWS Managemenct Console Access, and (ii) Programmatic Access.

  68. Which of the following is NOT a feature of AWS Identity and Access Management?

    Manage services and their capacity.

  69. Which of the following is true about security groups? (Choose 2)

    (i) Act as a virtual firewall to control inbound and outbound traffic, and (ii) All inbound traffic is denied and outbound traffic is allowed by default.

  70. What does AWS recommend as the best practice for AWS Account Root User after initial login?

    Delete root user access key.

  71. What are the three (3) types of cloud computing deployment?

    Hybrid cloud, Private cloud, and Public cloud.

  72. Which AWS service allows you to run code without having to worry about provisioning any underlying resources (such as virtual machines, databases, etc.)

    AWS Lambda.

  73. When considering cost optimization, what model allows you to pay only for what computing resources you actually use?

    Consumption model.

  74. Which design principles are recommended when considering performance efficiency? (Choose 2)

    (i) Serverless architecture, and (ii) Democratize advanced technologies.

  75. A company wants to align costs related to information Technology to the seasonal nature of the business and pay for services as they are consumed rather than paying for server upfront. Which is the MOST cost-effective instance pricing model?

    On-demand.

  76. Which feature enables users to sign in to their AWS accounts with their existing corporate credentials?

    Federation.

  77. You need to select an EC2 Instance type to service your workloads. If you have flexibility about the availability of the Amazon EC2 Instances, which of the following EC2 Instances would be most cost-effective?

    Spot Instances.

  78. What can you do best to make your application on AWS highly available?

    Deploy to at least two availability Zones.

  79. What does Amazon SES stand for?

    Simple Email Service.

  80. Which of the following can be attached to EC2 Instances to store data?

    Amazon EBS Volumes.

  81. A company is looking for help in designing a new cloud content-management application using AWS best practices. Which of the following can provide guidance?

    Use the AWS Well-Architected Tool.

  82. With which pricing model do you pay for compute capacity by the hour with no required minimum commitments?

    On-Demand Instances.

  83. What is the service provided by AWS that enables developers to easily deploy and manage applications in the cloud?

    AWS Elastic Beanstalk.

  84. Which type of storage stores objects comprised of key, value pairs?

    Amazon S3.

  85. With which service can a developer upload code from a Git repository and have the service handle the end-to-end deployment of the resources?

    AWS Elastic Beanstalk.

  86. What architectural best practice aims to reduce the interdependencies between services?

    Loose Coupling.

  87. Which service allows an organization to view operational data from multipleA WS services through a unified user interface and automate operational tasks.

    AWS Systems Manager.

  88. Under the shared responsibility model, what are examples of shared controls (choose 2)

    (i) Configuration management, and (ii) Patch management.

  89. What AWS services can be utilized at no cost? (choose 2)

    (i) Amazon VPC, and (ii) Identity and Access Management (IAM).

  90. Which of the facts below are accurate in relation to AWS Regions (choose 2)

    (i) Each region is designed to be completely isolated from the other Amazon Regions, and (ii) Each region consists of 2 or more Availability Zones.

  91. Which AWS service lets you add user sign up, sign-in and access control to web and mobile apps?

    AWS Cognito.

  92. Which service allows you to automatically expand and shrink your applicationin response to demand?

    AWS Auto Scaling.

  93. How does AWS assist organizations with their capacity requirements?

    You don't need to guess your capacity needs.

  94. Which aspects of security on AWS are customer responsibilities? (choose 2)

    (i) Setting up account password policies, and (ii) Server-side encryption.

  95. Which AWS program can help an organization to design, build, and manage their workloads on AWS?

    AWS Technical Account Manager.

  96. Which of the statements below is correct in relation to consolidated Billing? (choose 3)

    (i) You are not charged a fee, (ii) You receive a single bill for multiple accounts, and (iii) You can combine usage and share volume pricing discount.

  97. Why is AWS more economical than traditional data centers for applications with varying compute workloads?

    Amazon EC2 instances can be launched on-demand when needed.

  98. If your project requires monthly reports that iterate through very large amounts of data, which Amazon Elastic Compute Cloud (Amazon EC2) purchasing option should you consider?

    Scheduled Reserved Instances.

  99. What is included in an Amazon Machine Image (AMI)?

    A block device mapping that specifies the volumes to attach tothe instance when it's launched; A template for the root volume for the instance; and Launch permission that control which AWS accounts can use the AMI to launch instances.

  100. Which Amazon EC2 option is best for long-term workloads with predictable usage patterns?

    Reserved Instances.