Purchasing Options Flashcards
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
EC2 on demand
EC2 on Demand - how are you billed on a Mac?
Per second
Per minute
Per hour
Flat monthly Fee
per hour
EC2 on Demand - how are you billed on Windows/Linux OS?
Per hour
Per minute
First second and then Per minute
Per second
first second and then per minute
EC2 on Demand - how much upfront payment is required?
none
what is the most expensive EC2 Purchase option?
on demand
What type of instance options offer 1 and 3 year options?
Reserved instances
What are the two lengths of service offered for reserved instances?
1 and 3 years, respectively
Reserved instance offered about how much of a discount when compared to “on demand” instance?
72%
Reserve instance - what payment options are afforded?
- break your kneecaps
- all upfront
- no / some / all upfront
- use more / pay less
no upfront costs, partial upfront, all upfront
Rate these in order of how expensive they are, from least to most expensive?
- pay 100% upfront
- pay percentage upfront
- pay none upfront
- pay 100% upfront
- pay percentage upfront
- pay none upfront
which instances can be bought/sold on the instance marketplace
Reserved
Spot
Dreamlike
On Demand
Reserved instances
what type of usage is Reserve instances recommended for?
steady state usage (database)
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
Convertible Reserved Instance
this type of instance offers the same level of discount (72%) as Reserved Instance
EC2 Savings Plan
In this type of instance, you commit to a certain type of usage ($10/hour for 1 or 3 years)
EC2 Savings Plan
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
at “on demand” rates
this type of instance locks to a specific family & AWS region
EC2 Savings Plan
EC2 Reserved instance - is it reserve or flexible for specific instance attributes (instance type, region, tenancy, OS)?
reserved
EC2 Savings Plan - is it reserve or flexible for specific instance attributes (instance type, region, tenancy, OS)?
flexible
most cost efficient type of instances, about 90% cheaper than “on demand”
Spot instances
instance that you can lose at any time if your “max” price is less than the current price
Spot instance
these types of jobs are best suited for Spot instances
batch jobs, data analysis, image processing, distributed workloads, workloads w/flexible start/end times
these types of jobs are NOT suited for Spot instances
database, any type of critical job
the most expensive type of purchasing options
Dedicated hosts
this type of purchasing option reserves actual hardware
Dedicated hosts
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
Dedicated Hosts
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
1 or 3 year
all up front, some up front, none up front
this type of purchasing option is helpful for BYOL (bring your license) and other complicated scenarios
Dedicated Hosts
Good purchasing option for companies with strong regulatory or compliance needs
Dedicated Hosts
runs on hardware that is dedicated to you (different than Dedicated Hosts)
Dedicated instance
Capacity reserved
Dedicated ice tea
Smart instances
Dedicated Instance
this type of purchasing option may share dedicated hardware with other instances in your same account
Dedicated Instance
What type of control over instance placement does Dedicated Instance offer?
none
this type of purchasing option offers on-demand instances capacity in specific AZs for any duration
Capacity Reservation
this type of purchasing option always has access to EC2 capacity when needed
Capacity Reservation
what type of time commitments are required for Capacity Reservations? What type of billing discounts?
none and none
this type of purchasing option will charge you on-demand rates whether you’re running instances or not
Capacity Reservation
short term, un-interrupted workloads that need to be in a specific AZ need what type of purchasing option?
Capacity Reservation
in “Resort” speak, you’re planning to stay ahead and want to plan your stay for the best discount you can get.
Reserved Instance
“Resort” speak, pay certain $ per hour for certain specific period and stay in ANY room (King, Suite, Sea View, etc)
EC2 Plan Savings
“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
Spot Instances
“Resort” speak - entire building of a resort
Dedicated Host
“Resort” speak - book/pay full price of “x” time whether occupying room or not
Capacity Reservation
one characteristic of a Convertible Instance?
It’s very personable
It’s a sporty car
It’s the bees knees
It’s flexible
flexibility
one characteristic of a Capacity Reservation
can reserve capacity in a specific AZ
three types of purchasing options that that rely on 1 or 3 year commitments
Reserved
Convertible Reserved
EC2 Savings Plan
What are the four type of elastic load balancers?
Application, Network, Gateway, and Classic
