introduction to cloud computing coursera week 3 quiz answers

Practice Quiz: Cloud Infrastructure

1. Which of the following is a geographic area or location where a Cloud provider's infrastructure is clustered?

  • Warehouse
  • Networking
  • Data center
  • Region

2. Which of the following VMs use hosted hypervisors?

  • Oracle VirtualBox
  • VMware ESX
  • Open-source KVM
  • Microsoft Hyper-V

3. Which type of Virtual Machine (VM) takes advantage of unused capacity in data centers at a much lower cost than regular VMs of similar sizes?

  • Transient or Spot VMs
  • Dedicated hosts
  • Reserved virtual servers
  • Shared or Public Cloud VMs

4. Why do bare metal servers take longer to provision than virtual servers?

  • They are physical servers that can be customized to a specified capacity
  • They are multi-tenant servers, and all tenants must help configure them
  • Customer configures the physical servers
  • GPU configuration takes time

5. Which part of a logically segmented cloud network is the main area where security is implemented?

  • Networking spaces
  • Load balancers
  • Logical instances of networking elements
  • Subnets

6. Which is a container?

  • A type of virtual machine that is provider-managed, multi-tenant, and can be provisioned on-demand with predefined sizes
  • A physical server dedicated to a single customer
  • An executable unit of software in which application code is packaged along with its libraries and dependencies, allowing it to be run anywhere
  • A piece of software that pulls resources from the physical server and allocates them to your virtual environment

Practice Quiz: Cloud Storage and Content Delivery Networks

7. Which storage type is sometimes called "Local Storage"?

  • Block Storage
  • Object Storage
  • File Storage
  • Direct Attached

8. What is another name for File Storage?

  • Direct attached storage
  • COS
  • NFS
  • Ethernet

9. Which of the following is true for block storage?

  • Is used where workloads do not require lightning fast connectivity to storage
  • Is attached to compute nodes using an ethernet network
  • Can only be attached to one node at a time
  • Can be attached to multiple compute nodes at once

10. Which of the following is true for Object storage?

  • Used where fast read and write speeds are necessary
  • You cannot run operating systems or databases
  • Can store applications where content of the file changes
  • Cannot be used to store files

11. What is a Content Delivery Network (CDN)?

  • Network topology
  • A distributed server network
  • A network link
  • A network node

Module 3 Graded Quiz: Components of Cloud Computing

12. Each Cloud Region can have multiple Availability Zones. What are Zones?

  • Single shared point of failure
  • Geographic area or region where the cloud provider’s infrastructure is clustered
  • Unique physical locations with one or more data centers
  • Standardized containers of computing resources

13. Which of the following is a benefit of virtualization?

  • Is secure
  • Cost savings
  • Increases your downtime
  • Runs a single operating system

14. Which of the following types of Virtual Machine (VM) guarantees resources for future deployments?

  • Reserved virtual servers
  • Transient or Spot VMs
  • Dedicated hosts
  • shared or Public Cloud VMs

15. Which of the following is a feature of bare metal servers?

  • Multiple tenants
  • High performance and secure
  • Low cost to use
  • Rapidly provisioned

16. Subnets are the main area where security is implemented in the cloud. Which of the following is used to provide security at the virtual instance level in subnets?

  • Virtual Private Cloud or VPC
  • Load Balancers
  • Public Gateways
  • Security Groups or SGs

17. Which of the following is a benefit of isolation of applications in containers?

  • Abstraction from the host operating system
  • Repackaged into containers or containerized microservices
  • Preventing malicious code in one container from impacting other containers
  • Open-sourced runtime engine

18. Which of the following storage types are ephemeral or non-persistent?

  • object storage
  • File storage
  • Direct Attached storage
  • Block storage

19. What makes file storage an ideal solution for scenarios where shared storage is required?

  • File storage can be mounted on multiple compute nodes at the same time
  • File storage is mounted to compute nodes via an ethernet network
  • File storage can be mounted from remote storage appliances
  • Fast accessibility of file storage over the network

20. Which of the following scenarios is best suited for Block Storage?

  • Where workloads do not require fast connectivity to storage
  • Workloads that need disk sharing between compute nodes
  • Low cost is a consideration
  • Applications that need consistent fast access to the disk, such as databases

21. Which of the following is a feature of Object storage?

  • Storage is attached to compute nodes using a fiber network
  • Object Storage can be mounted on multiple compute nodes via an ethernet network
  • Used where fast read and write speeds are necessary
  • You can directly use Object Storage without attaching it to a compute node

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