CompTIA CompTIA Certifications CV0-003 Questions & Answers

• Question 351:

  A systems administrator has migrated an internal application to a public cloud. The new web server is running under a TLS connection and has the same TLS certificate as the internal application that is deployed. However, the IT department reports that only internal users who are using new versions of the OSs are able to load the application home page.

  Which of the following is the MOST likely cause of the issue?

  A. The local firewall from older OSs is not allowing outbound connections

  B. The local firewall from older OSs is not allowing inbound connections

  C. The cloud web server is using a self-signed certificate that is not supported by older browsers

  D. The cloud web server is using strong ciphers that are not supported by older browsers

  Correct Answer: D

  Ciphers are algorithms or methods that are used to encrypt and decrypt data for secure communication. Strong ciphers are ciphers that use high-level encryption techniques and keys to provide stronger security and protection for data. The cloud web server is using strong ciphers that are not supported by older browsers is the most likely cause of the issue of only internal users who are using new versions of the OSs being able to load the application home page after the administrator configured a redirect from HTTP to HTTPS on the web server. Older browsers may not support the strong ciphers used by the cloud web server for HTTPS connections, which can result in a failure to establish a secure connection and load the application home page. References: CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8

• Question 352:

  A systems administrator recently deployed a VDI solution in a cloud environment; however, users are now experiencing poor rendering performance when trying to display 3-D content on their virtual desktops, especially at peak times.

  Which of the following actions will MOST likely solve this issue?

  A. Update the quest graphics drivers from the official repository

  B. Add more vGPU licenses to the host

  C. Instruct users to access virtual workstations only on the VLAN

  D. Select vGPU profiles with higher video RAM

  Correct Answer: D

  A vGPU profile is a configuration option that defines the amount of video RAM (vRAM) and other resources that are allocated to a virtual machine (VM) that uses a virtual graphics processing unit (vGPU). A vGPU profile can affect the rendering performance of a VM, as it determines how much graphics memory and processing power are available for displaying complex graphics content. Selecting vGPU profiles with higher video RAM can most likely solve the issue of poor rendering performance when trying to display 3-D content on virtual desktops, especially at peak times, as it can provide more graphics resources and improve the quality and speed of rendering. References: CompTIA Cloud+ Certification Exam Objectives, page 11, section 1.6

  Reference: https://www.cisco.com/c/dam/en/us/solutions/collateral/data-center-virtualization/desktop-virtualization-solutions-vmware-horizon-view/whitepaper-c11-741606.pdf

• Question 353:

  A systems administrator needs to configure SSO authentication in a hybrid cloud environment.

  Which of the following is the BEST technique to use?

  A. Access controls

  B. Federation

  C. Multifactor authentication

  D. Certificate authentication

  Correct Answer: B

  Federation is a type of authentication mechanism that allows users to access multiple systems or applications across different domains or organizations with a single login credential. Federation can help configure SSO authentication in a hybrid cloud environment, as it can enable seamless and secure access to cloud-based and on- premises resources using the same identity provider and authentication method. Federation can also improve user convenience, productivity, and security, as it can simplify the login process, reduce login errors, and enhance password management. References: CompTIA Cloud+ Certification Exam Objectives, page 14, section 2.7

• Question 354:

  An organization has two businesses that are developing different software products. They are using a single cloud provider with multiple IaaS instances. The organization identifies that the tracking of costs for each business are inaccurate.

  Which of the following is the BEST method for resolving this issue?

  A. Perform segregation of the VLAN and capture egress and ingress values of each network interface

  B. Tag each server with a dedicated cost and sum them based on the businesses

  C. Split the total monthly invoice equally between the businesses

  D. Create a dedicated subscription for the businesses to manage the costs

  Correct Answer: B

  Tagging each server with a dedicated cost and summing them based on the businesses is the best method for resolving the issue of inaccurate cost tracking for different businesses that use multiple IaaS instances within a single cloud provider. Tagging can help identify and organize the servers based on various criteria, such as name, purpose, owner, or cost center. Tagging can also enable granular and accurate billing and reporting based on the tags. Summing the costs based on the businesses can help allocate and distribute the costs correctly and fairly among the different businesses. References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5

• Question 355:

  A systems administrator recently upgraded the processors in a web application host. Upon the next login, the administrator sees a new alert regarding the license being out of compliance.

  Which of the following licensing models is the application MOST likely using?

  A. Per device

  B. Per user

  C. Core-based

  D. Volume-based

  Correct Answer: C

  Core-based licensing is a type of licensing model that charges based on the number of processor cores in a system or server. Core-based licensing is often used by software vendors to align their pricing with the performance and capacity of modern hardware. Core-based licensing can also enable customers to optimize their licensing costs by choosing the appropriate hardware configuration for their needs. Upgrading the processors in a web application host can affect the core-based licensing of the application, as it may increase the number of cores that need to be licensed. This can result in an alert regarding the license being out of compliance if the license is not updated accordingly. References: CompTIA Cloud

  + Certification Exam Objectives, page 20, section 4.2

  Reference: https://download.microsoft.com/download/3/d/4/3d42bdc2-6725-4b29-b75a-a5b04179958b/ percorelicensing_definitions_vlbrief.pdf

• Question 356:

  To save on licensing costs, the on-premises, IaaS-hosted databases need to be migrated to a public DBaaS solution. Which of the following would be the BEST technique?

  A. Live migration

  B. Physical-to-virtual

  C. Storage-level mirroring

  D. Database replication

  Correct Answer: D

  Database replication is the best technique to migrate databases from an on- premises IaaS-hosted environment to a public DBaaS solution. Database replication is a process of copying data from one database server to another database server in real-time or near real-time. Database replication can ensure data consistency and availability across different locations and platforms. Database replication can facilitate migration by synchronizing data between on-premises databases and cloud databases.

• Question 357:

  An SQL injection vulnerability was reported on a web application, and the cloud platform team needs to mitigate the vulnerability while it is corrected by the development team.

  Which of the following controls will BEST mitigate the risk of exploitation?

  A. DLP

  B. HIDS

  C. NAC

  D. WAF

  Correct Answer: D

  A web application firewall (WAF) is a type of network security device or software that monitors and filters HTTP traffic between a web application and the Internet. A WAF can help mitigate the risk of exploitation of an SQL injection vulnerability reported on a web application while it is corrected by the development team, as it can detect and block any malicious requests or queries that attempt to inject SQL commands into the web application's database. A WAF can also help protect the web application from other common web-based attacks, such as cross-site scripting (XSS), remote file inclusion (RFI), or denial-of-service (DoS). References: CompTIA Cloud+ Certification Exam Objectives, page 14, section

  2.7

• Question 358:

  A systems administrator is troubleshooting performance issues with a Windows VDI environment. Users have reported that VDI performance has been slow since the images were upgraded from Windows 7 to Windows 10.

  This VDI environment is used to run simple tasks, such as Microsoft Office. The administrator investigates the virtual machines and finds the following settings:

  1.

  4 vCPU

  2.

  16GB RAM

  3.

  10Gb networking

  4.

  256MB frame buffer

  Which of the following MOST likely needs to be upgraded?

  A. vRAM

  B. vCPU

  C. vGPU

  D. vNIC

  Correct Answer: C

  A virtual graphics processing unit (vGPU) is a type of hardware or software that enables a VM to use the physical GPU resources of the host or server for graphics-intensive tasks. Upgrading the vGPU is most likely to solve the issue of VDI performance being slow since the images were upgraded from Windows 7 to Windows 10, as it can provide more graphics processing power and memory for the VMs. Upgrading the vGPU can also improve the user experience and productivity, as it can enhance the display quality and responsiveness of the VDI environment. References: CompTIA Cloud+ Certification Exam Objectives, page 11, section 1.6

• Question 359:

  An application deployment team has observed delays in deployments and has asked the cloud administrator to evaluate the issue. Below is the result of a latency test that was conducted by the cloud administrator from offices located in the

  following regions:

  Asia-Pacific (APAC)

  Europe, the Middle East, and Africa (EMEA)

  Americas

  Tests were conducted from each location, and the results are shown below:

  

  Which of the following locations needs to be investigated further?

  A. Connectivity from APAC to APAC regions Connectivity from APAC to EMEA and US - North

  B. Connectivity from APAC to all regions Connectivity from Americas to all regions

  C. Connectivity from EMEA to all regions Connectivity from APAC to APAC and EMEA regions

  D. Connectivity from APAC to EMEA and Americas regions Connectivity from EMEA to all regions

  Correct Answer: D

  Explanation: The latency test results show that the connectivity from APAC to EMEA and Americas regions has the highest latency values, ranging from 162 ms to 380 ms. This indicates that there is a significant delay in the network

  communication between these regions, which could affect the performance and availability of the cloud services. The connectivity from EMEA to all regions also has high latency values, ranging from 60 ms to 328 ms, which could also cause

  issues for the application deployment team. Therefore, these locations need to be investigated further to identify and resolve the root cause of the network latency.

  Some possible causes of network latency are :

  Congestion: The network bandwidth may be insufficient to handle the volume of traffic, resulting in packet loss, retransmission, and queuing delays. Distance: The physical distance between the source and destination nodes may increase the

  propagation delay, which is the time it takes for a signal to travel through a medium.

  Routing: The network topology and configuration may affect the number and quality of hops that a packet takes to reach its destination, resulting in transmission and processing delays. Hardware: The performance and capacity of the network

  devices, such as routers, switches, firewalls, and servers, may affect the speed and efficiency of data processing and delivery.

  Some possible solutions to reduce network latency are :

  Scaling: The network resources can be increased or optimized to handle the traffic demand, such as adding more bandwidth, load balancers, or caching servers. Location: The network nodes can be placed closer to each other or to the end

  users, such as using edge computing, content delivery networks (CDNs), or regional cloud data centers.

  Routing: The network routes can be improved or optimized to reduce the number and distance of hops, such as using direct peering, dedicated circuits, or software- defined networking (SDN). Hardware: The network devices can be upgraded

  or replaced with faster and more reliable ones, such as using solid-state drives (SSDs), fiber-optic cables, or 5G technology.

  References:

  What is Network Latency? | Cloudflare

  How To Reduce Network Latency In 2021 - DNSstuff

• Question 360:

  A business is looking at extending the platform for an internally developed application using microservices from various cloud vendors. The cloud architect is responsible for reviewing the proposed solution design, which covers critical requirements for the business to fulfill its requirements. Which of the following is the most likely requirement the cloud architect needs to fulfill?

  A. Software

  B. Budgetary

  C. Security

  D. Integration

  Correct Answer: D

  Explanation: Integration is the process of connecting and coordinating different components or systems to work together as a whole. In this scenario, the business is looking at extending the platform for an internally developed application using microservices from various cloud vendors. This means that the cloud architect needs to ensure that the microservices can communicate and interact with each other across different cloud platforms, as well as with the existing application. Integration is a critical requirement for the business to fulfill its requirements, as it affects the functionality, performance, and reliability of the application. Software, budgetary, and security are also important requirements, but they are not the most likely ones that the cloud architect needs to fulfill in this scenario. Software refers to the programs and applications that run on the cloud platforms. Budgetary refers to the costs and expenses associated with the cloud services and solutions. Security refers to the protection of the data and resources in the cloud environment from unauthorized access or attacks. References: CompTIA Cloud+ CV0-003 Certification Study Guide, Chapter 22, Microservices and Cloud Integration, page 3531.