- [Instructor] Let's wrap up this lesson by talking about,
some Cloud Concerns,
that you should know for the A+ exam.
The first is On-demand computing,
and that's what it's all about,
when it comes to cloud services.
You want the computing to be on demand.
You want it to be available in real time,
whenever you need it.
24 hours a day,
seven days a week.
And with on demand,
computing resources are made available to the user,
as needed.
Now we're not talking time,
we're talking about what resources are needed.
Only the specific amount of CPU power,
and Ram,
and network bandwidth,
and storage space,
are given to each user.
And this is important,
you don't wanna have the user,
gaining too much access,
or getting too many resources,
and you don't want the user to get too little.
You want them to get what they're paying for,
but no more than that.
And so this is important from a customer standpoint,
the customer wants to make sure that,
they are getting what they need,
but as a network admin working for a cloud service,
you wanna make sure that you're providing,
only what they need.
So, along those lines,
the next term is,
Measured Services.
And this is when,
the provider,
the cloud provider,
monitors the services rendered,
so that the provider can properly build a customer,
but also make sure that the customer's,
use of the services,
is being handled in the most efficient way.
This analysis lets the admin know,
that everything is working properly,
and that each user of a particular customer,
is getting what they need,
and then it can be billed appropriately,
and then the customer can see this information.
They can see exactly,
what they are getting,
what they're supposed to get,
and what they're paying for.
This helps them with their cost analysis.
So, as a customer,
you wanna make sure that you are getting measured services,
you wanna make sure that you can analyze,
exactly what you're getting.
And audit that information,
make sure it is what you're paying for.
- [Instructor 2] Measured services,
can work in conjunction with a pay service called,
Metered Services.
Where an organization has access,
to virtually unlimited resources,
but only the resources that are used,
are what are paid for.
And this should be measured carefully,
and again the details of the resources,
should be stated clearly every month.
- [Instructor 1] Next is Rapid Elasticity.
And this is the ability to build up,
your cloud-based network,
in a scalable fashion.
When you choose a provider,
you wanna make sure that the provider has a scalable model,
because if your company is gonna grow,
then your access to the cloud must grow with it.
Individual users might need more resources over time,
and the entire company as a whole,
might need more resources,
As time goes on.
That on demand computing,
needs to be elastic,
it needs to be,
pliant,
so that it can stretch,
to provide for the user's growth,
and for the company's growth.
And finally,
Resource pooling.
Resource pooling,
is when servers are grouped together,
and the infrastructure in the cloud,
is used by multiple customers.
But still in a way that is on demand,
when needed,
and scalable.
And again this is important,
you want to be able to scale,
you want this cloud service to be elastic.
You wanna be able to grow with it.
But in many cases,
it's too much money to do it by yourself.
For a mid-size company,
or a small company,
it's often too expensive.
So you share,
in a community environment,
and you know this happens a lot,
and you don't even notice it.
There might be a provider that has,
a super powerful multi Zion server,
that has a server operating system on it,
that runs virtual machines.
And it could have a dozen,
or two dozen,
or three dozen,
different virtual machines on there,
that are servicing many customers.
And this is very common,
you have to keep this in mind.
So resource pooling,
very important for a cloud provider,
to be able to offer this,
and it's something that you wanna look for as a customer,
so that you can save money,
by sharing the resources,
of a group of organizations.
Now this happens all the time,
it happens with servers on the cloud,
it happens with your internet connection,
if you have a cable internet connection,
or a fiber based connection,
you're ultimately sharing the bandwidth,
with other people when it gets to the central core.
So anytime you connect out,
to the internet,
you're almost always sharing at some point.
So those are some of the cloud concerns you wanna know.
For the most part,
what companies are interested in,
is where are their data,
and apps gonna be stored,
and will they have fast access to them,
and will they have enough storage,
to increase over time?
And there's a lot of providers out there,
that allow for this.
For example,
iCloud,
many people have apple devices.
And it's so much easier,
to store their data,
on the cloud than it is to store it locally.
Music, photos, videos,
and other data.
It's just so much easier to put this on the cloud,
so the Apple's iCloud became so powerful,
and such a big player so quickly,
because people wanted to store the stuff online,
it was just easy for them,
easy access on demand,
quick,
and iCloud was right there for them.
So that's one of the big providers.
Then you have Microsoft's One Drive,
and then you have Google Drive,
and Google has lots of other cloud services.
And then you have Dropbox,
which is used by a lot of companies,
and Amazon Cloud Drive.
And Amazon has lots of other services as well.
So these are some of the providers out there.
Take a look at some of the providers,
and what those services are that they offer.
You may be interested in,
the free services,
and then some of the pay services,
that are offered by these companies.
And that pretty much wraps up the lesson,
for the A+ exams,
you don't really need to know,
too much about the cloud,
but you wanna know the basics,
you wanna know the difference between,
software as a service,
infrastructure as a service,
and platform as a service.
Know those types of clouds,
the different types of clouds out there that you,
might utilize,
with your company,
or individually,
and some of these cloud concerns.
And keep in mind that,
it's gotta be on demand.
You gotta have access to it all the time.
It's gotta be quick and efficient,
that's what it's all about with the cloud.
As a customer,
you want to apply all these concepts,
that we just talked about.
You wanna think about these,
as you before you sign any type of service contract.
As an end user,
you want to use the service that is the cheapest,
hopefully free,
and easiest and fastest.
And one that is secure.
As an admin for a company,
you wanna make sure that the data is accessible,
that the platform,
or infrastructure is accessible,
and has good uptime,
We're talking about 99.99,
or 99.999% uptime,
and you wanna make sure it's secure as well.
That's about it for this lesson.