A cloud administrator for an ISP identified a vulnerability in the software that controls all the firewall
rules for a geographic are
a. To ensure the software upgrade is properly tested, approved, and applied, which of the following
processes should the administrator follow?
D
Explanation:
Change management is an IT practice that aims to minimize disruptions to IT services while making
changes to critical systems and services5. Change management involves planning, testing,
approving, and implementing changes in a controlled and systematic manner6. A change is defined
as adding, modifying, or removing anything that could have a direct or indirect effect on services5. In
this case, the cloud administrator should follow the change management process to ensure that the
software upgrade is properly tested, approved, and applied.
Reference:
Change management types, Atlassian
Change management vs Configuration management, Virima
A small online retailer is looking for a solution to handle the high load on its servers during the
holiday season. The retailer is not currently ready to move its IT operations completely to the cloud.
Which of the following will BEST fit these requirements?
C
Explanation:
Cloud bursting is a configuration method that uses cloud computing resources whenever on-
premises infrastructure reaches peak capacity. When organizations run out of computing resources in
their internal data center, they burst the extra workload to external third-party cloud services. Cloud
bursting is a convenient and cost-effective way to to support workloads with varying demand
patterns and seasonal spikes in demand12. Elasticity and scalability are related concepts, but they
are not specific solutions for the retailer’s problem. Elasticity refers to the ability of a cloud service to
automatically adjust the amount of resources allocated to a workload based on the current
demand3. Scalability refers to the ability of a cloud service to handle increasing or decreasing
workloads by adding or removing resources4. Self-service is a feature of cloud computing that allows
users to provision, manage, and monitor their own cloud resources without the need for human
intervention5. While these features are beneficial for cloud consumers, they do not address the
retailer’s need to handle the high load on its servers during the holiday season without moving its IT
operations completely to the cloud.
https://azure.microsoft.com/en-us/resources/cloud-computing-dictionary/what-is-cloud-bursting/
https://aws.amazon.com/what-is/cloud-bursting/
https://www.geeksforgeeks.org/cloud-bursting-vs-cloud-scaling/
A business analyst is drafting a risk assessment.
Which of the following components should be included in the draft? (Choose two.)
E,F
Explanation:
A risk assessment is a process of identifying, analyzing, and controlling hazards and risks within a
situation or a place1. According to the CompTIA Cloud Essentials+ Certification Study Guide, Second
Edition (Exam CLO-002), a risk assessment should include the following steps2:
Identify the assets that are relevant to the scope of the assessment. Assets can be physical, such as
hardware and software, or non-physical, such as data and information.
Identify the threats and vulnerabilities that could affect the assets. Threats are sources of potential
harm, such as natural disasters, cyberattacks, or human errors. Vulnerabilities are weaknesses or
gaps in the security or protection of the assets, such as outdated software, misconfigured settings, or
lack of encryption.
Analyze the likelihood and impact of each threat-vulnerability pair. Likelihood is the probability of a
threat exploiting a vulnerability, and impact is the severity of the consequences if that happens. The
combination of likelihood and impact determines the level of risk for each pair.
Evaluate the risks and prioritize them based on their level. Risks can be categorized as low, medium,
high, or critical, depending on the organization’s risk appetite and tolerance. Risk appetite is the
amount of risk that the organization is willing to accept, and risk tolerance is the degree of variation
from the risk appetite that the organization can endure.
Implement appropriate controls to mitigate or reduce the risks. Controls are measures or actions
that can prevent, detect, or correct the occurrence or impact of a risk. Controls can be
administrative, technical, or physical, and they can have different functions, such as preventive,
detective, corrective, deterrent, or compensating.
Based on these steps, two components that should be included in the draft of a risk assessment are
asset inventory and data classification. Asset inventory is the process of identifying and documenting
the assets that are within the scope of the assessment1. Data classification is the process of
categorizing data based on its sensitivity, value, and criticality to the organization3. These
components are essential for determining the potential risks and impacts that could affect the assets
and data, and for applying the appropriate controls and protection levels.
https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide
https://books.google.com/books/about/CompTIA_Cloud_Essentials+_Certification.html?id=S2TNDw
AAQBAJ
Which of the following is a cloud service model that organizations use when their third-party ERP
tool is provided as a complete service?
B
Explanation:
SaaS, or software as a service, is a cloud service model that provides ready-to-use, cloud-hosted
application software to customers. Customers do not need to install, manage, or maintain the
software; they simply access it via an internet connection, usually through a web browser. SaaS
applications are typically offered on a subscription or pay-per-use basis. Examples of SaaS
applications include email, CRM, ERP, office productivity, and collaboration tools12.
SaaS is different from the other cloud service models in terms of the level of abstraction and control.
In SaaS, the cloud service provider manages everything from the underlying infrastructure to the
application software, while the customer only controls the application settings and data. In contrast,
in IaaS (infrastructure as a service), the customer has more control and responsibility over the
servers, storage, networking, and operating systems, while the cloud service provider only manages
the physical infrastructure. In PaaS (platform as a service), the customer has control and
responsibility over the applications and data, while the cloud service provider manages the
underlying infrastructure and the development tools and platforms12.
Therefore, when an organization uses a third-party ERP tool as a complete service, it is using the SaaS
cloud service model. The organization does not need to worry about the installation, configuration,
or maintenance of the ERP software; it only needs to access it via the internet and pay for the
usage. The cloud service provider takes care of the rest.
https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide
https://www.amazon.com/CompTIA-Essentials-Certification-Second-CLO-002/dp/1260461785
A cloud systems administrator needs to migrate several corporate applications to a public cloud
provider and decommission the internal hosting environment. This migration must be completed by
the end of the month. Because these applications are internally developed to meet specific business
accounting needs, the administrator cannot use an alternative application.
Which of the following BEST describes the approach the administrator should use?
C
Explanation:
Lift and shift is a cloud migration strategy that involves moving an application or workload from one
environment to another without making significant changes to its architecture, configuration, or
code. This approach is suitable for applications that are not cloud-native, have complex
dependencies, or have tight deadlines for migration. Lift and shift can help reduce the cost and risk of
maintaining legacy infrastructure, improve scalability and availability, and leverage cloud services
and features12.
Hybrid deployment is a cloud deployment model that involves using both public and private cloud
resources to deliver services and applications. This approach is suitable for applications that have
varying performance, security, or compliance requirements, or that need to integrate with existing
on-premises systems. Hybrid deployment can help optimize the use of resources, increase flexibility
and agility, and balance trade-offs between cost and control34.
Phased migration is a cloud migration strategy that involves moving an application or workload from
one environment to another in stages or increments. This approach is suitable for applications that
have modular components, low interdependencies, or high complexity. Phased migration can help
reduce the impact of migration on business operations, test the functionality and performance of
each component, and address any issues or challenges along the way .
Rip and replace is a cloud migration strategy that involves discarding an application or workload from
one environment and replacing it with a new one in another environment. This approach is suitable
for applications that are outdated, incompatible, or inefficient, or that have high maintenance costs.
Rip and replace can help modernize the application architecture, design, and code, improve the user
experience and functionality, and take advantage of cloud-native features and services .
Reference:
[CompTIA Cloud Essentials+ CLO-002 Study Guide], Chapter 3: Management and Technical
Operations, Section 3.3: Cloud Migration, p. 123-125
[CompTIA Cloud+ CV0-003 Study Guide], Chapter 5: Deploying a Cloud Solution, Section 5.2: Cloud
Migration, p. 241-244
[CompTIA Cloud Essentials+ CLO-002 Study Guide], Chapter 1: Cloud Concepts, Section 1.3: Cloud
Deployment Models, p. 25-28
[CompTIA Cloud+ CV0-003 Study Guide], Chapter 1: Cloud Architecture and Design, Section 1.2:
Cloud Deployment Models, p. 19-22
[CompTIA Cloud Essentials+ CLO-002 Study Guide], Chapter 3: Management and Technical
Operations, Section 3.3: Cloud Migration, p. 125-126
[CompTIA Cloud+ CV0-003 Study Guide], Chapter 5: Deploying a Cloud Solution, Section 5.2: Cloud
Migration, p. 244-245
[CompTIA Cloud Essentials+ CLO-002 Study Guide], Chapter 3: Management and Technical
Operations, Section 3.3: Cloud Migration, p. 126-127
[CompTIA Cloud+ CV0-003 Study Guide], Chapter 5: Deploying a Cloud Solution, Section 5.2: Cloud
Migration, p. 245-246
[CompTIA Cloud Essentials+ CLO-002 Study Guide], ISBN: 978-1-119-64768-9, Publisher: Wiley
[CompTIA Cloud+ CV0-003 Study Guide], ISBN: 978-1-119-64767-2, Publisher: Wiley
A cloud administrator suggested using spot instances to reduce cloud costs for part of a new cloud
infrastructure.
Which of the following conditions must be addressed by the application that will run on these
instances?
C
Explanation:
Spot instances are cloud resources that are available at a lower price than on-demand instances, but
can be terminated by the cloud provider at any time based on supply and demand. Therefore, the
application that will run on these instances needs to handle unpredictable instance termination, such
as by saving state information, implementing fault tolerance, or using checkpoints12.
The other options are not directly related to the use of spot instances. The application may or may
not need to store data in a database, depending on its functionality and design. There is no inherent
restriction for distributed network communications when using spot instances, as long as the
application can handle network latency and bandwidth issues. Resource-intensive compute loads are
not forbidden, but they may increase the likelihood of instance termination, as the cloud provider
may reclaim the resources for higher-paying customers.
Reference:
[CompTIA Cloud Essentials+ CLO-002 Study Guide], Chapter 2: Business Principles of Cloud
Environments, Section 2.4: Cloud Service Costing, p. 81-82
[CompTIA Cloud+ CV0-003 Study Guide], Chapter 6: Optimizing the Cloud Environment, Section 6.3:
Cloud Optimization Techniques, p. 287-288
[CompTIA Cloud Essentials+ CLO-002 Study Guide], ISBN: 978-1-119-64768-9, Publisher: Wiley
[CompTIA Cloud+ CV0-003 Study Guide], ISBN: 978-1-119-64767-2, Publisher: Wiley
An organization wants to migrate a locally hosted application to a PaaS model. The application
currently runs on a 15-year-old operating system and cannot be upgraded.
Which of the following should the organization perform to ensure the application will be supported
in the cloud?
B
Explanation:
A feasibility study is a process of evaluating the viability of a project or an idea before committing
resources and time to it. It helps to identify the potential benefits, costs, risks, and challenges of a
proposed solution. A feasibility study is especially important when migrating an application to a
cloud platform, as it can determine whether the application is compatible with the cloud provider’s
services, standards, and requirements. In this case, the organization wants to migrate a locally hosted
application that runs on a 15-year-old operating system to a PaaS model. The application cannot be
upgraded, which means it may not be supported by the cloud provider’s platform. A feasibility study
can help the organization to assess the technical and operational feasibility of the migration, as well
as the financial and strategic implications. A feasibility study can also help the organization to
compare different cloud providers and select the best one for their needs. Reference: CompTIA Cloud
Essentials+ Certification Study Guide, Second Edition (Exam CLO-002), Chapter 4: Cloud Planning,
Section 4.2: Feasibility Studies1
Transferring all of a customer's on-premises data and virtual machines to an appliance, and then
shipping it to a cloud provider is a technique used in a:
D
Explanation:
A lift and shift migration approach, also known as rehosting, is a cloud migration strategy where
applications and infrastructure are moved from one environment to another without making
substantial changes to the underlying architecture123. This approach can be faster, cheaper, and less
risky than other migration strategies, as it does not require extensive redesign or reconfiguration of
the applications. However, it may also limit the ability to leverage the native features and benefits of
the cloud platform, such as scalability, elasticity, and performance1245.
One of the challenges of a lift and shift migration is transferring large amounts of data and virtual
machines over the network, which can be time-consuming, costly, and prone to errors. To overcome
this challenge, some cloud providers offer a technique where the customer can transfer all of their
on-premises data and virtual machines to an appliance, such as a physical storage device or a server,
and then ship it to the cloud provider. The cloud provider then uploads the data and virtual machines
to the cloud platform, where they can be accessed by the customer12. This technique can reduce the
network bandwidth and latency issues, as well as the security risks, associated with transferring data
over the internet. However, it may also introduce additional costs and delays for shipping and
handling the appliance, as well as the risk of damage or loss during transit2.
Therefore, transferring all of a customer’s on-premises data and virtual machines to an appliance,
and then shipping it to a cloud provider is a technique used in a lift and shift migration
approach. Reference:
1: Lift and Shift: An Essential Guide | IBM
2: What Is Lift and Shift? | 5 Strategies to Consider | NetApp
3: What Is Lift and Shift Migration? | Pure Storage
4: Lift and Shift: Business Benefits, Planning and Execution - NetApp
5: Lift and Shift Cloud Migration: Benefits, Disadvantages and Use Cases …
Which of the following models provides the SMALLEST amount of technical overhead?
A
Explanation:
SaaS, or software as a service, is a cloud computing model that provides on-demand access to ready-
to-use, cloud-hosted application software. SaaS customers do not need to install, configure, manage,
or maintain any hardware or software infrastructure to use the applications. The cloud service
provider is responsible for all the technical aspects of the service, such as hosting, security,
performance, availability, updates, and backups. SaaS customers only need an internet connection
and a web browser or a mobile app to access the applications. SaaS provides the smallest amount of
technical overhead for customers, as they do not have to deal with any of the underlying
infrastructure or platform components. SaaS customers can focus on using the applications for their
business needs, without worrying about the technical details.
Some examples of SaaS applications are Gmail, Google Docs, Salesforce, Slack, and Zoom .
Reference:
: IaaS vs. PaaS vs. SaaS | IBM
: Cloud Service Models Explained: SaaS, IaaS, PaaS, FaaS - Jelvix
A mobile application development team requires frequent software updates for a major launch of a
customer- facing application. The business requirement is to be first-to-market on a new feature that
leverages third- party-hosted services.
Which of the following is the BEST approach to use for speed and efficiency?
B
Explanation:
An application programming interface (API) is a set of rules and protocols that enable different
applications to communicate and exchange data and functionality. APIs can simplify software
development and innovation by allowing applications to access the data and services of other
applications, especially those hosted on the cloud. APIs can also speed up the development process
by reducing the need to write code from scratch or maintain complex infrastructure. For a mobile
application development team that requires frequent software updates and wants to leverage third-
party-hosted services, using APIs is the best approach for speed and efficiency. APIs can help the
team to integrate their application with the cloud-based services they need, such as authentication,
storage, analytics, or payment processing. APIs can also help the team to deliver updates faster and
more reliably, as they can use the cloud provider’s APIs to deploy, test, and monitor their application.
APIs can also enable the team to be first-to-market on a new feature, as they can use existing APIs to
access the functionality they need, rather than building it themselves.
Reference:
1: What is an Application Programming Interface (API)? | IBM
2: What is an API (Application Programming Interface)? | AWS
3: Cloud APIs | Complete Guide | Akana by Perforce
CompTIA Cloud Essentials+ Certification Study Guide, Second Edition (Exam CLO-002), Chapter 8:
Applications and Big Data in the Cloud, Section 8.1: Cloud Application Architecture4