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  1. Browse decks
  2. Cloud Engineering Fundamentals
  3. Cloud Service Models, Regions and Availability Zones
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Cloud Engineering Fundamentals

The core ideas a cloud engineer works with every day: service models and regions, identity and access, virtual networks, compute, storage, managed databases, disaster recovery and cost. Examples use real AWS, Azure and Google Cloud service names.

Engineering
AShared by Alex Chen
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Cloud Service Models, Regions and Availability Zones

What IaaS, PaaS and SaaS hand to the provider, who secures what under the shared responsibility model, and how regions, availability zones and edge locations are laid out.

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Content

40 total questions

MCQ: 10
Fill-in: 8
Flashcards: 12
Pair match: 10
Cloud Service Models, Regions and Availability Zones – Flashcards
Flashcards

Card #1

IaaS (Infrastructure as a Service)

Card #2

PaaS (Platform as a Service)

Card #3

SaaS (Software as a Service)

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Cloud Service Models, Regions and Availability Zones – MCQ
Multiple Choice Questions
  1. 1. A customer leaves a storage bucket open to the public and its files are downloaded by strangers. Under the shared responsibility model, whose failure is this?

    • The provider, because it owns the storage hardware the bucket sits on
    • The customer, because access settings on their own data are their job
    • Shared equally, because the provider should have blocked the setting
    • Nobody, because public buckets are a supported feature of the service
  2. 2. Your company uses a SaaS email product. Which job is still yours?

    • Patching the mail servers and the operating systems they run on
    • Replacing failed disks in the data centre that stores the mail
    • Upgrading the mail application when a new version is released
    • Deciding who gets an account and what they are allowed to see
  3. 3. Your web app runs on servers in one availability zone only, and that zone loses power. What happens?

    • The app is down until the zone recovers, since no copy runs elsewhere
    • The provider moves the running servers to another zone automatically
    • Traffic shifts to an edge location, which runs the app until power returns
    • Only writes fail, because reads are served from the other zones anyway
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Cloud Service Models, Regions and Availability Zones – Fill-in-the-blank
Fill in the Blank
  1. 1. Moving an existing application onto cloud virtual machines with little or no change to its code is often called lift and ___.

    Answer:shiftalso: shift.

    Hint: The second half of a phrase about picking something up

  2. 2. A cloud environment that one organisation runs only for its own use, on its own premises or hosted by someone else, is a ___ cloud.

    Answer:private

    Hint: The opposite of public

  3. 3. Running workloads on two or more public cloud providers at the same time is called a ___ strategy.

    Answer:multi-cloudalso: multicloud, multi cloud

    Hint: A prefix meaning many, plus the word cloud

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Cloud Service Models, Regions and Availability Zones – Pair match
Pair Match
Fault domain (Azure)↔Hardware that shares one power source and network switch
Update domain (Azure)↔A group of VMs restarted together during planned maintenance
Availability set (Azure)↔Spreads VMs over fault and update domains in one data centre
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