Fundamentals Flashcards

1
Q

Six advantages of cloud computing

A
  1. Trade capital expense for variable expense
  2. Benefit from massive economies of scale
  3. Stop guesing about capacity
  4. Increase speed and atility
  5. Stop spending money running and maintaining data centers
  6. Go global in minutes
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2
Q

The 6 advantages of cloud

A
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3
Q

AWS History

A
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4
Q

How many services does AWS have?

A

165

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5
Q

How many geographical regions does AWS have?

A

24

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6
Q

What is a region?

A

A geographical area with 2 or more AZ, isolated from other AWS regions

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7
Q

What is an Availability Zone (AZ)?

A

One or more data centers that are physically separete and isolated from other AZs

You launch resources there (such as EC2 instances)

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8
Q

What is Edge Location?

A

A location with a cache of content that can be delivered at low latency to users - used by CloudFront

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9
Q

Regional Edge Cache

A

Also part of the CloudFront network. These are larger caches that sit between AWS services and Edge Locations

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10
Q

Global Network

A

Highly available, low-latency private global network interconnecting every data center, AZ, and AWS region

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11
Q

How many Availability zones are?

A

76

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12
Q

how arer the AWS Availability Zones?

A
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13
Q

AWS Global Infrastructure

A
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14
Q

AWS Pricing Models

A

On-Demand

Dedicated instances

Spot Instances (ex. Univerties for big volumens)

Reservations

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15
Q

Time reservations work at AWS

A

1 or 3 year term

Pay:

  • no upfront,
  • partial upfront
  • All upfront
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16
Q

Reservations are availble for:

A

EC2

DynamoDB

ElastiCache Reserved Nodes

Relational Database Service

RedShift Reserved Nodes

17
Q

AZ and failure zone

A

AZ is designed as an independent failure zone

18
Q

AZs and physicall distribution

A

AZs are physically separated within a typical metropolitan region, and use discrete power sources

19
Q

The three fundamentals of AWS princing

A
  • Compute
  • Storage
  • Outbound data transfer
20
Q

How charge on-demand does work?

A

Used for compute and database capacity

No long-term commintments or upfront payments

21
Q

Which pricing model is highly flexible with no long-term commitments or upfront payments?

A

On-demand

22
Q

Which AWS policy defines the prohibited uses of the AWS Cloud?

A

AWS Acceptable Use Policy

23
Q
A
24
Q
A