AZ 900 - Microsoft Certified Azure
Fundamental EXAM QUESTIONS AND ALL
CORRECT ANSWERS 100% SOLVED AND
GUARANTEED SUCCESS
What are some computing services offered by a Cloud Provider? ------- ✔ CORRECT ANSWER
✓✓•*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 ------- ✔ CORRECT ANSWER ✓✓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. ------- ✔ CORRECT ANSWER ✓✓A container is similar
to a VM but it doesn't need a guest operating system.
What is Serverless Computing? ------- ✔ CORRECT ANSWER ✓✓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! ------- ✔ CORRECT
ANSWER ✓✓*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 ------- ✔ CORRECT ANSWER ✓✓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 ------- ✔ CORRECT ANSWER ✓✓As your
workload changes due to a spike or drop in demand, a cloud computing system can compensate
by automatically adding or removing resources. (e.g. a web-site during Black Friday Sale)
Define: redundancy as it relates to cloud computing ------- ✔ CORRECT ANSWER ✓✓If one
component fails, another is available to take its place and its workload.
Define: fault-tolerance as it relates to cloud computing ------- ✔ CORRECT ANSWER
✓✓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. ------- ✔ CORRECT
ANSWER ✓✓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) ------- ✔
CORRECT ANSWER ✓✓•*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.
•*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? ------- ✔ CORRECT ANSWER ✓✓Fixed Costs and a
predictable expense for your budget! Companies on a tight budget will lean here.
What is the primary benefit of OpEx? ------- ✔ CORRECT ANSWER ✓✓Grows if demand is
increased and shrinks accordingly. For new companies / startups this will make lots of sense.
What is Cloud agility? ------- ✔ CORRECT ANSWER ✓✓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 ------- ✔ CORRECT ANSWER ✓✓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.
Give one example of where you would use a public cloud solution ------- ✔ CORRECT ANSWER
✓✓Deploy a website or blog. The web-server is handled by the cloud provider. You only worry
about managing the site itself.
, Give three disadvantages to using a public cloud model. ------- ✔ CORRECT ANSWER
✓✓•Security Requirements
•Government Policies
•Business requirements for a legacy software / application.
Describe the Private Cloud ------- ✔ CORRECT ANSWER ✓✓In a private cloud, you create a cloud
environment in your own datacenter and provide self-service access to compute resources to
users in your organization (You take the place of Microsoft Azure).
Give one example of where you would use a private cloud solution ------- ✔ CORRECT ANSWER
✓✓An organization has data that cannot be put in the public cloud, perhaps for legal reasons.
An e.g. may be where government policy requires specific data to be kept in-country or
privately.
Give three disadvantages to using a private cloud model. ------- ✔ CORRECT ANSWER ✓✓•Initial
CapEx costs and must purchase the hardware for startup and maintenance
•Owning the equipment limits agility - to scale you must buy, install, and setup new hardware
•Private clouds require IT skills and expertise.
Describe the Hybrid Cloud ------- ✔ CORRECT ANSWER ✓✓Combine public and private cloud(on
premises data-center). Simple as that.
What can be a primary disadvantage of the Hybrid Cloud? ------- ✔ CORRECT ANSWER
✓✓Humongous expenses. Running both cloud + on premises is typically very costly! (It might be
necessary in a scenario with legacy Line-of-Business software)
Describe Infrastructure-as-a-Service (IaaS) ------- ✔ CORRECT ANSWER ✓✓You have complete
control over the hardware that runs your application (Servers and virtual machines (VMs),
Fundamental EXAM QUESTIONS AND ALL
CORRECT ANSWERS 100% SOLVED AND
GUARANTEED SUCCESS
What are some computing services offered by a Cloud Provider? ------- ✔ CORRECT ANSWER
✓✓•*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 ------- ✔ CORRECT ANSWER ✓✓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. ------- ✔ CORRECT ANSWER ✓✓A container is similar
to a VM but it doesn't need a guest operating system.
What is Serverless Computing? ------- ✔ CORRECT ANSWER ✓✓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! ------- ✔ CORRECT
ANSWER ✓✓*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 ------- ✔ CORRECT ANSWER ✓✓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 ------- ✔ CORRECT ANSWER ✓✓As your
workload changes due to a spike or drop in demand, a cloud computing system can compensate
by automatically adding or removing resources. (e.g. a web-site during Black Friday Sale)
Define: redundancy as it relates to cloud computing ------- ✔ CORRECT ANSWER ✓✓If one
component fails, another is available to take its place and its workload.
Define: fault-tolerance as it relates to cloud computing ------- ✔ CORRECT ANSWER
✓✓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. ------- ✔ CORRECT
ANSWER ✓✓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) ------- ✔
CORRECT ANSWER ✓✓•*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.
•*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? ------- ✔ CORRECT ANSWER ✓✓Fixed Costs and a
predictable expense for your budget! Companies on a tight budget will lean here.
What is the primary benefit of OpEx? ------- ✔ CORRECT ANSWER ✓✓Grows if demand is
increased and shrinks accordingly. For new companies / startups this will make lots of sense.
What is Cloud agility? ------- ✔ CORRECT ANSWER ✓✓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 ------- ✔ CORRECT ANSWER ✓✓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.
Give one example of where you would use a public cloud solution ------- ✔ CORRECT ANSWER
✓✓Deploy a website or blog. The web-server is handled by the cloud provider. You only worry
about managing the site itself.
, Give three disadvantages to using a public cloud model. ------- ✔ CORRECT ANSWER
✓✓•Security Requirements
•Government Policies
•Business requirements for a legacy software / application.
Describe the Private Cloud ------- ✔ CORRECT ANSWER ✓✓In a private cloud, you create a cloud
environment in your own datacenter and provide self-service access to compute resources to
users in your organization (You take the place of Microsoft Azure).
Give one example of where you would use a private cloud solution ------- ✔ CORRECT ANSWER
✓✓An organization has data that cannot be put in the public cloud, perhaps for legal reasons.
An e.g. may be where government policy requires specific data to be kept in-country or
privately.
Give three disadvantages to using a private cloud model. ------- ✔ CORRECT ANSWER ✓✓•Initial
CapEx costs and must purchase the hardware for startup and maintenance
•Owning the equipment limits agility - to scale you must buy, install, and setup new hardware
•Private clouds require IT skills and expertise.
Describe the Hybrid Cloud ------- ✔ CORRECT ANSWER ✓✓Combine public and private cloud(on
premises data-center). Simple as that.
What can be a primary disadvantage of the Hybrid Cloud? ------- ✔ CORRECT ANSWER
✓✓Humongous expenses. Running both cloud + on premises is typically very costly! (It might be
necessary in a scenario with legacy Line-of-Business software)
Describe Infrastructure-as-a-Service (IaaS) ------- ✔ CORRECT ANSWER ✓✓You have complete
control over the hardware that runs your application (Servers and virtual machines (VMs),
