"Simple Q&A PDF for CV0-003 Exam Preparation Guide"

CompTIA
CV0-003 Exam
CompTIA Cloud+ Certification Exam
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Question 1. (Single Select)
SIMULATION
A company has decided to scale its e-commerce application from its corporate datacenter to a
commercial cloud provider to meet an anticipated increase in demand during an upcoming
holiday.
The majority of the application load takes place on the application server under normal
conditions. For this reason, the company decides to deploy additional application servers into a
commercial cloud provider using the on-premises orchestration engine that installs and
configures common software and network configurations.
The remote computing environment is connected to the on-premises datacenter via a site-to-site
IPSec tunnel. The external DNS provider has been configured to use weighted round-robin
routing to load balance connections from the Internet.
During testing, the company discovers that only 20% of connections completed successfully.
INSTRUCTIONS
Review the network architecture and supporting documents and fulfill these requirements:
Part 1:
Part 2:
If at any time you would like to bring back the initial state of the simulation, please click the
Reset All button.
Part 1:
Cloud Hybrid Network Diagram
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of 16

Part 2: Only select a maximum of TWO options from the multiple choice question
Page 7 of 16

A: See explanation below
Correct Answer: A
Explanation:
Part 1: Router 2
The problematic device is Router 2, which has an incorrect configuration for the IPSec tunnel.
The IPSec tunnel is a secure connection between the on-premises datacenter and the cloud
provider, which allows the traffic to flow between the two networks. The IPSec tunnel requires
both endpoints to have matching parameters, such as the IP addresses, the pre-shared key
(PSK), the encryption and authentication algorithms, and the security associations (SAs) .
According to the network diagram and the configuration files, Router 2 has a different PSK and a
different address space than Router 1. Router 2 has a PSK of “1234567890”, while Router 1 has
a PSK of “0987654321”. Router 2 has an address space of 10.0.0.0/8, while Router 1 has an
address space of 192.168.0.0/16. These mismatches prevent the IPSec tunnel from establishing
and encrypting the traffic between the two networks.
The other devices do not have any obvious errors in their configuration. The DNS provider has
two CNAME records that point to the application servers in the cloud provider, with different
weights to balance the load. The firewall rules allow the traffic from and to the application
servers on port 80 and port 443, as well as the traffic from and to the VPN server on port 500
and port 4500. The orchestration server has a script that installs and configures the application
servers in the cloud provider, using the DHCP server to assign IP addresses.
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Part 2:
The correct options to provide adequate configuration for hybrid cloud architecture are:
Update the PSK in Router 2.
Change the address space on Router 2.
These options will fix the IPSec tunnel configuration and allow the traffic to flow between the
on-premises datacenter and the cloud provider. The PSK should match the one on Router 1,
which is “0987654321”. The address space should also match the one on Router 1, which is
192.168.0.0/16.
B) Update the PSK (Pre-shared key in Router2)
E) Change the Address Space on Router2
SIMULATION
The QA team is testing a newly implemented clinical trial management (CTM) SaaS application
that uses a business intelligence application for reporting. The UAT users were instructed to use
HTTP and HTTPS.
Refer to the application dataflow:
1A – The end user accesses the application through a web browser to enter and view clinical
data.
2A – The CTM application server reads/writes data to/from the database server.
1B – The end user accesses the application through a web browser to run reports on clinical
data.
2B – The CTM application server makes a SOAP call on a non-privileged port to the BI
application server.
3B – The BI application server gets the data from the database server and presents it to the
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CTM application server.
When UAT users try to access the application using https://ctm.app.com or http://ctm.app.com,
they get a message stating: “Browser cannot display the webpage.” The QA team has raised a
ticket to troubleshoot the issue.
INSTRUCTIONS
You are a cloud engineer who is tasked with reviewing the firewall rules as well as virtual
network settings.
You should ensure the firewall rules are allowing only the traffic based on the dataflow.
You have already verified the external DNS resolution and NAT are working.
Verify and appropriately configure the VLAN assignments and ACLs. Drag and drop the
appropriate VLANs to each tier from the VLAN Tags table. Click on each Firewall to change
ACLs as needed.
If at any time you would like to bring back the initial state of the simulation, please click the
Reset All button.
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A: See explanation below
Correct Answer: A
Explanation:
On firewall 3, change the DENY 0.0.0.0 entry to rule 3 not rule 1.
Page 12 of 16

A DevOps administrator is automating an existing software development workflow. The
administrator wants to ensure that prior to any new code going into production, tests confirm the
new code does not negatively impact existing automation activities.
Which of the following testing techniques would be BEST to use?
A: Usability testing
B: Regression testing
C: Vulnerability testing
D: Penetration testing
Correct Answer: B
Explanation:
Regression testing is a type of testing that ensures that new code or changes to existing code do
not break or degrade the functionality of the software. Regression testing is often used in
software development workflows to verify that new features or bug fixes do not introduce new
errors or affect the performance of the software. Regression testing can help prevent negative
impacts on existing automation activities by checking that the new code is compatible with the
existing code and does not cause any unexpected failures or errors. CompTIA Cloud+
Certification Exam Objectives, page 19, section 4.1
A marketing team is using a SaaS-based service to send emails to large groups of potential
customers. The internally managed CRM system is configured to generate a list of target
customers automatically on a weekly basis, and then use that list to send emails to each
customer as part of a marketing campaign. Last week, the first email campaign sent emails
successfully to 3,000 potential customers. This week, the email campaign
attempted to send out 50,000 emails, but only 10,000 were sent.
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Which of the following is the MOST likely reason for not sending all the emails?
A: API request limit
B: Incorrect billing account
C: Misconfigured auto-scaling
D: Bandwidth limitation
Correct Answer: A
Explanation:
An API request limit is a restriction on the number of requests that can be made to a web service
or application programming interface (API) within a certain time period. API request limits are
often used by SaaS-based services to control the usage and traffic of their customers and
prevent overloading or abuse of their resources. An API request limit can cause a failure to send
all the emails if the marketing team exceeds the number of requests allowed by the SaaS-based
service in a week. The service may reject or block any requests that go beyond the limit,
resulting in fewer emails being sent than expected. CompTIA Cloud+ Certification Exam
Objectives, page 13, section 2.5
A VDI administrator has received reports of poor application performance.
Which of the following should the administrator troubleshoot FIRST?
A: The network environment
B: Container resources
C: Client devices
D: Server resources
Correct Answer: A
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Explanation:
The network environment is the set of network devices, connections, protocols, and
configurations that enable communication and data transfer between different systems and
applications. The network environment can affect the performance of a virtual desktop
infrastructure (VDI) by influencing factors such as bandwidth, latency, jitter, packet loss, and
congestion. Poor network performance can result in slow or unreliable application delivery,
degraded user experience, and reduced productivity. Therefore, troubleshooting the network
environment should be the first step for a VDI administrator who receives reports of poor
application performance. CompTIA Cloud+ Certification Exam Objectives, page 17, section 3.4
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