CompTIA CV0-004 Online Practice Questions and Exam Preparation

CompTIA CV0-004 Online Questions & Answers

• Question 1:

  HOTSPOT

  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:

  1. 1A -The end user accesses the application through a web browser to enter and view clinical data.

  2. 2A -The CTM application server reads/writes data to/from the database server.

  3. 1B -The end user accesses the application through a web browser to run reports on clinical data.

  4. 2B -The CTM application server makes a SOAP call on a non-privileged port to the BI application server.

  5. 3B -The BI application server gets the data from the database server and presents it to the 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.

  

  

• Question 2:

  A cloud engineer needs to integrate a new payment processor with an existing e- commerce website.

  Which of the following technologies is the best fit for this integration?

  A. RPC over SSL
  B. Transactional SQL
  C. REST API over HTTPS
  D. Secure web socket
  C. REST API over HTTPS

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  Explanation

  The best technology for integrating a new payment processor with an existing e-commerce website is a REST API over HTTPS. This method is widely used for web services, allowing secure communication over the internet and a standardized way for applications to communicate with each other.

  References:

  CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Integration

• Question 3:

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

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  Explanation

  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 4:

  A cloud-based VM is no longer required. However, the sensitive data on the VM's data disk must be retained.

  Which of the following is the best approach for the administrator to take?

  A. 1. Delete the VM and disks.2. Retain the VM's backups.
  B. 1. Take a snapshot of the data disk.2. Delete the VM and disks.
  C. 1. Stop the VM. 2 Tag the VM.
  D. 1. Delete the source VM and disks.2. Copy the data to another VM.
  B. 1. Take a snapshot of the data disk.2. Delete the VM and disks.

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  Explanation

  Taking a snapshot of the data disk preserves the sensitive data independently of the VM. After the snapshot is created, the VM and its disks can be safely deleted, eliminating unnecessary compute costs while retaining the required data for future recovery or compliance purposes.

• Question 5:

  The performance of an e-commerce website decreases dramatically during random periods. The IT team is evaluating available resources to mitigate the situation.

  Which of the following is the best approach to effectively manage this scenario?

  A. Migrating to a dedicated host
  B. Purchasing additional servers
  C. Scheduling resource allocation
  D. Configuring automatic elasticity
  D. Configuring automatic elasticity

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  Explanation

  Configuring automatic elasticity is the best approach to manage an e- commerce website that experiences random performance drops due to variable traffic. Automatic elasticity enables the cloud resources to scale up or down automatically based on the current load, ensuring consistent performance even during unexpected traffic surges.

  References:

  The concept of automatic elasticity is part of the cloud management and technical operations content in the CompTIA Cloud+ curriculum.

• Question 6:

  A systems administrator wants to ensure two VMs remain together on the same host.

  Which of the following must be set up to enable this functionality?

  A. Affinity
  B. Zones
  C. Regions
  D. A cluster
  A. Affinity

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  Explanation

  Affinity is what must be set up to ensure two VMs remain together on the same host. Affinity is a feature that allows customers to specify preferences or requirements for placing VMs on certain hosts or clusters within a cloud environment. Affinity can help to improve performance, availability, compatibility, or security of VMs by ensuring they are located on optimal hosts or clusters. Affinity can also help to keep two VMs together on the same host by creating an affinity rule that binds them together.

• Question 7:

  A company has ten cloud engineers working on different manual following is the best method to address this issue?

  A. Deployment documentation
  B. Service logging
  C. Configuration as code
  D. Change ticketing
  C. Configuration as code

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  Explanation

  Configuration as code is the best method to address the issue of cloud engineers working on different manual configurations. This practice allows configurations to be scripted and automated, which reduces human error, enhances consistency, and makes the deployment process more efficient and reproducible.

  References:

  Configuration as code is part of cloud deployment best practices, ensuring standardized environments, which is a key topic within the CompTIA Cloud+ curriculum.

• Question 8:

  A systems administrator is configuring network management but is concerned about confidentiality.

  Which of the following should the administrator configure to address this concern?

  A. Community strings
  B. IPSec tunnels
  C. ACLs
  D. SNMPv3
  D. SNMPv3

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  Explanation

  SNMPv3 is the protocol that the administrator should configure to address the concern about confidentiality for network management. SNMP (Simple Network Management Protocol) is a standard protocol that allows network devices and systems to exchange information and perform management tasks. SNMPv3 is the latest version of SNMP that provides security enhancements, such as authentication, encryption, and access control, to protect the confidentiality, integrity, and availability of network data.

• Question 9:

  A software engineer is integrating an application to the cloud that is WebSocket-based.

  Which of the following applications is the engineer most likely deploying?

  A. Image-sharing
  B. Data visualization
  C. Chat
  D. File transfer
  C. Chat

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  Explanation

  A chat application is most likely to be deployed when integrating a web socket-based application to the cloud. Web sockets provide full-duplex communication channels over a single, long-lived connection, which is ideal for real-time applications like chat services that require persistent connections between the client and server for instant data exchange.

  References:

  CompTIA Cloud+ materials cover cloud networking concepts, emphasizing the importance of choosing the right technologies, like web sockets, for specific application requirements to ensure efficient and responsive cloud-based services.

• Question 10:

  A systems administrator has been asked to restore a VM from backup without changing the current VM's operating state.

  Which of the following restoration methods would BEST fit this scenario?

  A. Alternate location
  B. Rolling
  C. Storage live migration
  D. In-place
  D. In-place