Microsoft Certified Azure Fundamentals
Exam (AZ-900) Q&A 100% Guaranteed
Success
What are some computing services offered by a Cloud Provider? -
✔✔•*Compute power* - e.g. Servers or web applications
•*Storage* - e.g. Files and Databases
•*Networking* - e.g. secure connections between the cloud provider and on-
premises.
•*Analytics* - e.g. visual telemetry and performance data
Jim the systems admin at a fictitious company is an absolute control freak! From
the list below, choose the most appropriate cloud solution for him:
a). Virtual Machines
b). Containers
c). Serverless compute - ✔✔ANSWER: a). *Virtual Machines.* Because he will
emulate a physical system, Jim can do whatever he likes (e.g. install software,
configure updates etc.)
Give the simplest definition of a container. - ✔✔A container is similar to a VM
but it doesn't need a guest operating system.
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,What is Serverless Computing? - ✔✔Serverless computing lets you run
application code(e.g. functions) without creating, configuring, or maintaining a
server. When compared to VMs and Containers, it is the lightest and fastest
deployment method.
Rob is new to cloud computing and is confused by the terms: "Vertical Scaling"
and "Horizontal" scaling. Give him a brief rundown on the differences between
the two! - ✔✔*Vertical scaling*: aka "scaling up", is the process of adding
resources to increase the power of an existing server. Some examples of vertical
scaling are: *adding more CPUs, or adding more memory*.
*Horizontal scaling*: aka "scaling out", is the process of adding more servers
that function together as one unit. For example, *you have more than one
server processing incoming requests*
Define: Scalability as it relates to cloud computing - ✔✔You can increase or
decrease the resources and services used based upon the needs of your
organization.
Define: Elasticity as it relates to cloud computing - ✔✔As your workload
changes due to a spike or drop in demand, a cloud computing system can
Page 2 of 32
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION
NUMBER: 619652435. TERMS OF USE. PRIVACY STATEMENT.ALL RIGHTS RESERVED
,compensate by automatically adding or removing resources. (e.g. a web-site
during Black Friday Sale)
Define: redundancy as it relates to cloud computing - ✔✔If one component fails,
another is available to take its place and its workload.
Define: fault-tolerance as it relates to cloud computing - ✔✔Customers and end-
users are not impacted when a disaster occurs.
Misha the cloud computing class nerd wants to engage you in a discussion on
Economies of Scale. Start the conversation off with an adequate definition and
an example. - ✔✔Economies of scale is *the ability to do things more efficiently
or at a lower-cost per unit when operating at a larger scale.* In other words,
more money is saved, when production rates are higher. Users also pay less for
power consumption, cooling and network connectivity than they would with on-
premises infrastructure.
Compare / Contrast CapEx(Capital Expenditure) vs. OpEx(Operational
Expenditure) - ✔✔•*Capital Expenditure*: the spending of money on physical
infrastructure up front, and then deducting that expense from your tax bill over
time. CapEx is an upfront cost, which has a value that reduces over time.
Page 3 of 32
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION
NUMBER: 619652435. TERMS OF USE. PRIVACY STATEMENT.ALL RIGHTS RESERVED
, •*Operational Expenditure*: spending money on services or products now and
being billed for them now. You can deduct this expense from your tax bill in the
same year. There's no upfront cost. You pay for a service or product as you use
it.
What is the primary benefit of CapEx? - ✔✔Fixed Costs and a predictable
expense for your budget! Companies on a tight budget will lean here.
What is the primary benefit of OpEx? - ✔✔Grows if demand is increased and
shrinks accordingly. For new companies / startups this will make lots of sense.
What is Cloud agility? - ✔✔Cloud agility is the ability to rapidly change an IT
infrastructure to adapt to the evolving needs of the business. For e.g. if your
service peaks one month, you can scale to demand and pay a larger bill for the
month. If the following month the demand drops, you can reduce the used
resources and be charged less. This agility lets you manage your costs
dynamically, optimizing spending as requirements change.
Describe the Public Cloud - ✔✔Microsoft Azure is a public cloud provider. There
is no local hardware to manage or keep up-to-date - everything runs on your
cloud provider's hardware. In some cases, you can save additional costs by
sharing computing resources with other cloud users.
Page 4 of 32
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION
NUMBER: 619652435. TERMS OF USE. PRIVACY STATEMENT.ALL RIGHTS RESERVED
Exam (AZ-900) Q&A 100% Guaranteed
Success
What are some computing services offered by a Cloud Provider? -
✔✔•*Compute power* - e.g. Servers or web applications
•*Storage* - e.g. Files and Databases
•*Networking* - e.g. secure connections between the cloud provider and on-
premises.
•*Analytics* - e.g. visual telemetry and performance data
Jim the systems admin at a fictitious company is an absolute control freak! From
the list below, choose the most appropriate cloud solution for him:
a). Virtual Machines
b). Containers
c). Serverless compute - ✔✔ANSWER: a). *Virtual Machines.* Because he will
emulate a physical system, Jim can do whatever he likes (e.g. install software,
configure updates etc.)
Give the simplest definition of a container. - ✔✔A container is similar to a VM
but it doesn't need a guest operating system.
Page 1 of 32
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION
NUMBER: 619652435. TERMS OF USE. PRIVACY STATEMENT.ALL RIGHTS RESERVED
,What is Serverless Computing? - ✔✔Serverless computing lets you run
application code(e.g. functions) without creating, configuring, or maintaining a
server. When compared to VMs and Containers, it is the lightest and fastest
deployment method.
Rob is new to cloud computing and is confused by the terms: "Vertical Scaling"
and "Horizontal" scaling. Give him a brief rundown on the differences between
the two! - ✔✔*Vertical scaling*: aka "scaling up", is the process of adding
resources to increase the power of an existing server. Some examples of vertical
scaling are: *adding more CPUs, or adding more memory*.
*Horizontal scaling*: aka "scaling out", is the process of adding more servers
that function together as one unit. For example, *you have more than one
server processing incoming requests*
Define: Scalability as it relates to cloud computing - ✔✔You can increase or
decrease the resources and services used based upon the needs of your
organization.
Define: Elasticity as it relates to cloud computing - ✔✔As your workload
changes due to a spike or drop in demand, a cloud computing system can
Page 2 of 32
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION
NUMBER: 619652435. TERMS OF USE. PRIVACY STATEMENT.ALL RIGHTS RESERVED
,compensate by automatically adding or removing resources. (e.g. a web-site
during Black Friday Sale)
Define: redundancy as it relates to cloud computing - ✔✔If one component fails,
another is available to take its place and its workload.
Define: fault-tolerance as it relates to cloud computing - ✔✔Customers and end-
users are not impacted when a disaster occurs.
Misha the cloud computing class nerd wants to engage you in a discussion on
Economies of Scale. Start the conversation off with an adequate definition and
an example. - ✔✔Economies of scale is *the ability to do things more efficiently
or at a lower-cost per unit when operating at a larger scale.* In other words,
more money is saved, when production rates are higher. Users also pay less for
power consumption, cooling and network connectivity than they would with on-
premises infrastructure.
Compare / Contrast CapEx(Capital Expenditure) vs. OpEx(Operational
Expenditure) - ✔✔•*Capital Expenditure*: the spending of money on physical
infrastructure up front, and then deducting that expense from your tax bill over
time. CapEx is an upfront cost, which has a value that reduces over time.
Page 3 of 32
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION
NUMBER: 619652435. TERMS OF USE. PRIVACY STATEMENT.ALL RIGHTS RESERVED
, •*Operational Expenditure*: spending money on services or products now and
being billed for them now. You can deduct this expense from your tax bill in the
same year. There's no upfront cost. You pay for a service or product as you use
it.
What is the primary benefit of CapEx? - ✔✔Fixed Costs and a predictable
expense for your budget! Companies on a tight budget will lean here.
What is the primary benefit of OpEx? - ✔✔Grows if demand is increased and
shrinks accordingly. For new companies / startups this will make lots of sense.
What is Cloud agility? - ✔✔Cloud agility is the ability to rapidly change an IT
infrastructure to adapt to the evolving needs of the business. For e.g. if your
service peaks one month, you can scale to demand and pay a larger bill for the
month. If the following month the demand drops, you can reduce the used
resources and be charged less. This agility lets you manage your costs
dynamically, optimizing spending as requirements change.
Describe the Public Cloud - ✔✔Microsoft Azure is a public cloud provider. There
is no local hardware to manage or keep up-to-date - everything runs on your
cloud provider's hardware. In some cases, you can save additional costs by
sharing computing resources with other cloud users.
Page 4 of 32
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION
NUMBER: 619652435. TERMS OF USE. PRIVACY STATEMENT.ALL RIGHTS RESERVED
