Topic 1 · Question 45

You plan to migrate a web application to Azure. The web application is accessed by external users.
You need to recommend a cloud deployment solution to minimize the amount of administrative effort used to manage the web application.
What should you include in the recommendation?

A. Software as a Service (SaaS)

B. Platform as a Service (PaaS)

C. Infrastructure as a Service (IaaS)

D. Database as a Service (DaaS)

Top comment

Community votes:B · 16 (84%)A · 3 (16%)

simplist▲ 403Highly votedSeptember 17, 2019 09:58 am

It is a custom web app deployed to Azure. If it was a MS product, then it would be a SaaS. Otherwise, your own apps deployed into cloud run on PaaS ( they just provide the environment, "platform")

11 more highly voted comments

m1nt1w0p4cc▲ 79Highly votedJune 18, 2021 03:51 pm

The question asks to 'Migrate' an existing app... that means that it is probably that the app was developed in house, then SaaS won't be possible, that's why is PaaS

JasonB▲ 74Highly votedSeptember 11, 2019 04:11 pm

I don't understand the response to this question, why it is PaaS and not SaaS?

ultraOriginalVillain▲ 56Highly votedApril 10, 2020 08:57 pm

You change it, you ADMINISTRATE it! That is PaaS. Saas however you simply make the software and put it on an app store, people download; maybe you release new versions but this implies renouncing the older versions which you CANNOT administer anymore.

sbettani▲ 27Highly votedNovember 26, 2019 10:33 am

A is wrong because SaaS isn't ment to manage web applications, SaaS is just a software, like S4B.

C Is wrong because IaaS is the cloud solution with the highest administrative effort (Like virtual machines)

D Is wrong, databases are ment to store data ecc...

Kuntal_Roni▲ 24Highly votedOctober 22, 2021 08:37 am

If it's a MS product and you're using it, it'll be SaaS. As the web app is managed by external users, it falls under PaaS

skb1996▲ 16Highly votedMay 23, 2020 08:36 pm

because its a web app, SaaS is for software services like Office365.Web app may need modifications, for which Paas is good

ramlasist▲ 11Highly votedJanuary 11, 2023 04:18 am

The keywords are "migrate" and "administration"

RTT1976▲ 10Highly votedOctober 29, 2019 10:20 pm

It it would be SaaS option then there would no long exist web application, mas some purchased software/product.
SaaS - SOFTWARE as a service, which means that you purchase a software/product which might be a web software/product accessed by external users. But it says "You plan to migrate a web application to Azure". It doesn't say it is to decommission the web application and purchase a software/product (as a service).

the_dom▲ 9Highly votedJanuary 15, 2020 03:54 am

The key is the client intends to 'migrate an existing web app to azure' which suits PaaS and not SaaS. You don't migrate existing apps into a SaaS solution.

Gbase▲ 9Highly votedNovember 13, 2020 02:16 pm

The Intention/catch phrase here is " minimize administrative effort" and that's what PaaS does, it gives some level of control/administration unlike SaaS

skinguy7▲ 8Highly votedNovember 05, 2019 10:13 pm

i thought SaaS too but is 'minimize' the catch out word here? meaning you would still want some level of control/management, that being the case PaaS would then be the best option.

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