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Amazon Cloud Certified Professional > Purchasing Options > Flashcards

Purchasing Options Flashcards

1
Q

what option has no long term commitment, pay for what you use, recommended for short term and un-interrupted workloads, where you can’t predict how the application will behave

A

EC2 on demand

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2
Q

EC2 on Demand - how are you billed on a Mac?

Per second
Per minute
Per hour
Flat monthly Fee

A

per hour

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3
Q

EC2 on Demand - how are you billed on Windows/Linux OS?

Per hour
Per minute
First second and then Per minute
Per second

A

first second and then per minute

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4
Q

EC2 on Demand - how much upfront payment is required?

A

none

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5
Q

what is the most expensive EC2 Purchase option?

A

on demand

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6
Q

What type of instance options offer 1 and 3 year options?

A

Reserved instances

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7
Q

What are the two lengths of service offered for reserved instances?

A

1 and 3 years, respectively

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8
Q

Reserved instance offered about how much of a discount when compared to “on demand” instance?

A

72%

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9
Q

Reserve instance - what payment options are afforded?

  • break your kneecaps
  • all upfront
  • no / some / all upfront
  • use more / pay less
A

no upfront costs, partial upfront, all upfront

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10
Q

Rate these in order of how expensive they are, from least to most expensive?
- pay 100% upfront
- pay percentage upfront
- pay none upfront

A
  • pay 100% upfront
  • pay percentage upfront
  • pay none upfront
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11
Q

which instances can be bought/sold on the instance marketplace

Reserved
Spot
Dreamlike
On Demand

A

Reserved instances

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12
Q

what type of usage is Reserve instances recommended for?

A

steady state usage (database)

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13
Q

This type of Reserve Instance offers about a 66% discount compared to the most expensive “on demand” and you can change instance type, family, OS, scope, tenancy

A

Convertible Reserved Instance

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14
Q

this type of instance offers the same level of discount (72%) as Reserved Instance

A

EC2 Savings Plan

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15
Q

In this type of instance, you commit to a certain type of usage ($10/hour for 1 or 3 years)

A

EC2 Savings Plan

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16
Q

EC2 Savings plan - how is usage billed that goes beyond the committed usage rate?

It’s not, you’re instance is terminated
At Spot instance rates
With a hug & kiss
On Demand rates

A

at “on demand” rates

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17
Q

this type of instance locks to a specific family & AWS region

A

EC2 Savings Plan

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18
Q

EC2 Reserved instance - is it reserve or flexible for specific instance attributes (instance type, region, tenancy, OS)?

A

reserved

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19
Q

EC2 Savings Plan - is it reserve or flexible for specific instance attributes (instance type, region, tenancy, OS)?

A

flexible

20
Q

most cost efficient type of instances, about 90% cheaper than “on demand”

A

Spot instances

21
Q

instance that you can lose at any time if your “max” price is less than the current price

A

Spot instance

22
Q

these types of jobs are best suited for Spot instances

A

batch jobs, data analysis, image processing, distributed workloads, workloads w/flexible start/end times

23
Q

these types of jobs are NOT suited for Spot instances

A

database, any type of critical job

24
Q

the most expensive type of purchasing options

A

Dedicated hosts

25
Q

this type of purchasing option reserves actual hardware

A

Dedicated hosts

26
Q

if you want a purchasing option where you can use your existing server-bound (per socket, per core) software licenses

Savings Plan
Dedicated Hosts
Reserved instance
Capacity reserved instance

A

Dedicated Hosts

27
Q

what type of purchasing options are available for “Dedicated Hosts”? (length of time, payment options)

1 & 3 year / pay none, some or all upfront

Pay as you go

1 & 3 year / pay all

1 & 3 year / pay less if dedicating more

A

1 or 3 year
all up front, some up front, none up front

28
Q

this type of purchasing option is helpful for BYOL (bring your license) and other complicated scenarios

A

Dedicated Hosts

29
Q

Good purchasing option for companies with strong regulatory or compliance needs

A

Dedicated Hosts

30
Q

runs on hardware that is dedicated to you (different than Dedicated Hosts)

Dedicated instance
Capacity reserved
Dedicated ice tea
Smart instances

A

Dedicated Instance

31
Q

this type of purchasing option may share dedicated hardware with other instances in your same account

A

Dedicated Instance

32
Q

What type of control over instance placement does Dedicated Instance offer?

A

none

33
Q

this type of purchasing option offers on-demand instances capacity in specific AZs for any duration

A

Capacity Reservation

34
Q

this type of purchasing option always has access to EC2 capacity when needed

A

Capacity Reservation

35
Q

what type of time commitments are required for Capacity Reservations? What type of billing discounts?

A

none and none

36
Q

this type of purchasing option will charge you on-demand rates whether you’re running instances or not

A

Capacity Reservation

37
Q

short term, un-interrupted workloads that need to be in a specific AZ need what type of purchasing option?

A

Capacity Reservation

38
Q

in “Resort” speak, you’re planning to stay ahead and want to plan your stay for the best discount you can get.

A

Reserved Instance

39
Q

“Resort” speak, pay certain $ per hour for certain specific period and stay in ANY room (King, Suite, Sea View, etc)

A

EC2 Plan Savings

40
Q

“Resort” speak - hotel allows billing for currently empty rooms, highest bidder keeps the room, can get kicked out at anytime

Capacity reserved
Vegas baby, Vegas
Spot instances
Savings plan

A

Spot Instances

41
Q

“Resort” speak - entire building of a resort

A

Dedicated Host

42
Q

“Resort” speak - book/pay full price of “x” time whether occupying room or not

A

Capacity Reservation

43
Q

one characteristic of a Convertible Instance?

It’s very personable
It’s a sporty car
It’s the bees knees
It’s flexible

A

flexibility

44
Q

one characteristic of a Capacity Reservation

A

can reserve capacity in a specific AZ

45
Q

three types of purchasing options that that rely on 1 or 3 year commitments

A

Reserved
Convertible Reserved
EC2 Savings Plan

46
Q

What are the four type of elastic load balancers?

A

Application, Network, Gateway, and Classic

Amazon Cloud Certified Professional (21 decks)

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