2025 Latest CV0-004 dumps Exam Material with 230 Questions
CompTIA CV0-004 Questions and Answers Guarantee you Oass the Test Easily
NEW QUESTION # 117
A cloud engineer hardened the WAF for a company that operates exclusively in North Americ a. The engineer did not make changes to any ports, and all protected applications have continued to function as expected. Which of the following configuration changes did the engineer most likely apply?
- A. The engineer blocked all traffic originating outside the region.
- B. The engineer completed an upgrade from TLS version 1.1 to version 1.3.
- C. The engineer implemented MFA to access the WAF configurations.
- D. The engineer installed the latest security patches on the WAF.
Answer: A
Explanation:
Given that the WAF was hardened without changing any ports and all protected applications continued to function as expected, it is most likely that the engineer blocked all traffic originating outside of North America, which is the company's operating region. Reference: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Security Best Practices
NEW QUESTION # 118
A security analyst reviews the daily logs and notices the following suspicious activity:
The analyst investigates the firewall logs and identities the following:
Which of the following steps should the security analyst take next to resolve this issue? (Select two).
- A. Block all outbound connections from the IP address 10.150.71.151.
- B. Upgrade the Windows x64 operating system on John Smith's computer to the latest version.
- C. Contact John Smith and request the Ethernet cable attached to the desktop be unplugged
- D. Submit an IT support ticket and request Kali Linux be uninstalled from John Smith's computer
- E. Block all inbound connections on port 4444 and block the IP address 201.101.25.121.
- F. Check the running processes to confirm if a backdoor connection has been established.
Answer: E,F
Explanation:
Given the suspicious activity and Kali Linux's association with penetration testing and hacking tools, the security analyst should block all inbound connections on port 4444, as it is commonly used for malicious purposes, and block the IP address that's potentially the source of the intrusion. Additionally, checking the running processes on John Smith's computer is crucial to determine if a backdoor or unauthorized connection has been established.
Reference: Incident response and threat mitigation steps such as these are part of the security protocols discussed in the CompTIA Cloud+ certification.
NEW QUESTION # 119
A systems administrator needs to configure a script that will monitor whether an application is healthy and stop the VM if an unsuccessful code is returned. Which of the following scripts should the systems administrator use to achieve this goal?
- A. RESPONSE_CODE }
string APP_URL
bool RESPONSE_CODE
string VM
health checker (APP_URL, VM) {
if [ http_probe (APP_URL) == 200] {
echo RESPONSE_CODE }
else{
stop (VM)
echo - B. else{
echo
string APP_URL
int RESPONSE_CODE
string VM
health_checker (APP_URL, VM) {
if [ http_probe (VM) == 200] {
stop (VM)
echo RESPONSE_CODE }
RESPONSE CODE } - C. else{
echo
string APP_URL
int RESPONSE CODE
string VM
health checker (APP_URL, VM) {
if [ http_probe (APP_URL) == 200] {
echo RESPONSE_CODE }
stop (VM)
RESPONSE_CODE } - D. else{
echo
string APP_URL
float RESPONSE_CODE
string VM
health_checker (APP_URL, VM) {
if [ http_probe (APP_URL) == 200] {
stop (RESPONSE_CODE)
echo VM }
stop (VM)
RESPONSE CODE }
Answer: A
Explanation:
Script A is designed to monitor the health of an application by checking its response code.
If the application returns a 200 (OK) status, it indicates that the application is healthy.
Otherwise, the script will stop the VM to address the issue, which is a common approach to handle unhealthy application states in automated environments. This script effectively achieves the goal of monitoring application health and taking corrective action when an unsuccessful code is returned.
NEW QUESTION # 120
A developer is testing code that will be used to deploy a web farm in a public cloud. The main code block is a function to create a load balancer and a loop to create 1.000 web servers, as shown below:
The developer runs the code against the company's cloud account and observes that the load balancer is successfully created, but only 100 web servers have been created. Which of the following should the developer do to fix this issue?
- A. Run the code multiple times until all servers are created.
- B. Request an increase of Instance quota.
- C. Place the my_load_balancer () function after the loop.
- D. Check the my_web_server () function to ensure it is using the right credentials.
Answer: B
Explanation:
The developer should request an increase of the instance quota from the cloud provider. Cloud services often have a limit on the number of instances that can be created, which is known as an instance quota. If the load balancer is successfully created but the number of web servers is limited to 100, it suggests that the quota has been reached. Increasing the quota will allow the creation of additional web server instances up to the desired number.
Reference: The scenario reflects an understanding of cloud resource management and limitations, which is a part of the CompTIA Cloud+ curriculum, specifically under the domain of Management and Technical Operations.
NEW QUESTION # 121
A developer is sending requests to a SaaS application. The developer becomes unable to send more requests after sending a number of them, but other developers can still send requests. Which of the following is most likely causing the issue?
- A. API throttling
- B. Rate limiting
- C. Partial outage
- D. Service quota
Answer: B
Explanation:
A . Partial outage: Would affect multiple developers, not just one.
B . API throttling: Temporarily limits requests but doesn't block them entirely.
C . Rate limiting: Prevents excessive requests from a single user or system, explaining why the developer was blocked after reaching a certain threshold.
D . Service quota: Typically applies to overall service usage rather than individual user requests.
Reference:
CompTIA Cloud+ CV0-004 Study Guide, Objective 2.6: Optimize resource usage and application access controls.
NEW QUESTION # 122
A developer is building a new application version using a CI/CD pipeline. The developer receives the following error message log when the build fails:
Which of the following is the most likely cause of this failure?
- A. Incorrect version
- B. Test case failure
- C. Dependency issue
- D. Broken build pipeline
Answer: C
Explanation:
The error message indicates that the 'requests' module, which is a dependency, is not found. The failure is most likely due to the 'requests' library not being installed or not included in the environment where the application is running.References: Dependency management is a crucial part of maintaining a CI/CD pipeline, a topic included in the CompTIA Cloud+ examination objectives.
NEW QUESTION # 123
A customer is migrating applications to the cloud and wants to grant authorization based on the classification levels of each system. Which of the following should the customer implement to ensure authorisation to systems is granted when the user and system classification properties match? (Select two).
- A. Token-based authentication
- B. Discretionary access control
- C. Role-based access control
- D. Bastion host
- E. Multifactor authentication
- F. Resource tagging
Answer: B,C
Explanation:
Discretionary Access Control (DAC) and Role-Based Access Control (RBAC) are effective methods for granting authorization based on system classification levels. DAC allows resource owners to grant access rights, making it flexible for environments with varying classification levels. RBAC assigns permissions based on roles within an organization, aligning access rights with the user's job functions and ensuring that users access only what is necessary for their role, which can be mapped to system classifications.References:
CompTIA Cloud+ content covers various access control models, emphasizing the importance of implementing appropriate security measures that align with organizational policies and classification levels to ensure secure and authorized access to cloud systems.
NEW QUESTION # 124
A cloud deployment uses three different VPCs. The subnets on each VPC need to communicate with the others over private channels. Which of the following will achieve this objective?
- A. Deploying a load balancer to send traffic to the private IP addresses
- B. Adding BGP routes using the VPCs' private IP addresses
- C. Establishing identical routing tables on all VPCs
- D. Creating peering connections between all VPCs
Answer: D
Explanation:
To allow subnets on different VPCs to communicate with each other over private channels, the cloud engineer should create peering connections between all the VPCs. VPC Peering allows networks to connect and route traffic using private IP addresses without the need for gateways, VPN connections, or separate physical hardware. Reference: CompTIA Cloud+ Study Guide (Exam CV0-004) by Todd Montgomery and Stephen Olson
NEW QUESTION # 125
A cloud architect is deploying a web application that contains many large images and will be accessed on two containers. Which of the following will MOST improve the user experience while keeping costs low?
- A. Implement a CDN and offload the images to an object storage.
- B. Implement a replica of the entire solution on every continent.
- C. Implement web servers on both continents and peer the VPCs.
- D. Implement web servers in both continents and set up a VPN between the VPCs.
Answer: A
Explanation:
A CDN (content delivery network) is a network of servers that are distributed around the world.
When a user requests a web page, the CDN will deliver the page from the server that is closest to the user. This can significantly improve the user experience by reducing the amount of time it takes to load the page.
Object storage is a type of storage that is designed to store large amounts of data. It is typically used for storing images, videos, and other media files. Offloading the images to object storage will free up space on the web servers, which can improve performance and reduce costs.
NEW QUESTION # 126
Which of the following is the best type of database for storing different types of unstructured data that may change frequently?
- A. Relational
- B. Non-relational
- C. Graph
- D. Vector
Answer: B
Explanation:
Non-relational (NoSQL) databases are best for storing different types of unstructured data that may change frequently. They are designed to handle a wide variety of data types and are not constrained by the fixed schema of relational databases, making them more flexible and scalable for unstructured data.
Reference: The distinction between relational and non-relational databases and their use cases is part of the foundational knowledge for cloud databases discussed in the CompTIA Cloud+ certification.
NEW QUESTION # 127
A cloud engineer was deploying the company's payment processing application, but it failed with the following error log:
ERFOR:root: Transaction failed http 429 response, please try again Which of the following are the most likely causes for this error? (Select two).
- A. API gateway outage
- B. Unauthorized access
- C. API throttling
- D. Insufficient quota
- E. Oversubscription
- F. Web server outage
Answer: C,D
Explanation:
The error "http 429 response, please try again" typically indicates API throttling, where the number of requests exceeds the rate limit set by the API provider, and insufficient quota, where the allowed number of API calls within a given timeframe has been exceeded.
Reference: API throttling and quota management are key concepts in the management of cloud resources, as highlighted in the CompTIA Cloud+ curriculum.
NEW QUESTION # 128
A CI/CD pipeline is used to deploy VMs to an laaS environment. Which of the following can be used to harden the operating system once the VM is running?
- A. Kubernetes
- B. Docker
- C. Git
- D. Ansible
Answer: D
Explanation:
Ansible can be used to harden the operating system once the VM is running. It is an automation tool that can configure systems, deploy software, and orchestrate more advanced IT tasks such as continuous deployments or zero downtime rolling updates.References: Ansible and other configuration management tools are part of the cloud management strategies discussed in the CompTIA Cloud+ certification material.
NEW QUESTION # 129
A company is preparing a hypervisor environment to implement a database cluster. One of the requirements is to share the disks between the nodes of the cluster to access the same LUN.
Which of the following protocols should the company use? (Choose two.)
- A. NFS
- B. FC
- C. RAID 10
- D. FTP
- E. iSCSI
- F. CIFS
Answer: B,E
Explanation:
A LUN is used by a transport protocol associated with an SCSI, iSCSI, Fibre Channel (FC) or similar interface. LUNs are central to the management of block storage arrays shared over a SAN.
NEW QUESTION # 130
A cloud administrator wants to provision a host with two VMs. The VMs require the following:
After configuring the servers, the administrator notices that during certain hours of the day, the performance heavily degrades. Which of the following is the best explanation?
- A. The RAM on each VM is insufficient.
- B. A higher number of processes occur at those times.
- C. The storage is overutilized.
- D. The host requires additional physical CPUs.
Answer: A
Explanation:
Given the provided table, the VMs have been allocated 2GB of RAM each, which may be insufficient for their workload, especially during peak hours which could lead to performance degradation. Insufficient RAM can cause the VMs to use swap space on disk, which is significantly slower and can lead to poor performance. Reference: CompTIA Cloud+ Certification Study Guide (Exam CV0-004) by Scott Wilson and Eric Vanderburg.
NEW QUESTION # 131
A cloud engineer is extending on-premises services to a public cloud. The following design requirements must be considered in the overall solution:
" The ability to remotely connect systems from both environments
* No IP address conflicts or overlap
* Cost-effectiveness
Which of the following cloud network concepts best meets these requirements?
- A. VPN
- B. VLAN
- C. Dedicated connection
- D. ACL
Answer: A
Explanation:
A Virtual Private Network (VPN) is the most cost-effective solution for extending on-premises services to a public cloud while ensuring secure remote connectivity. VPNs can be configured to avoid IP address conflicts and overlap by using IP address translation and tunneling techniques, making them suitable for connecting disparate environments without significant changes to the existing network infrastructure.
NEW QUESTION # 132
Which of the following strategies requires the development of new code before an application can be successfully migrated to a cloud provider?
- A. Rehost
- B. Replatform
- C. Rearchitect
- D. Refactor
Answer: D
Explanation:
Refactoring requires the development of new code before an application can be successfully migrated to a cloud provider. It often involves restructuring and optimizing the existing code without changing its external behavior to fit into the new cloud environment.
Reference: Application migration strategies and the requirements for each, like refactoring, are included in cloud migration best practices covered in CompTIA Cloud+.
NEW QUESTION # 133
A security team recently hired multiple interns who all need the same level of access. Which of the following controls should the security team implement to provide access to the cloud environment with the least amount of overhead?
- A. Local user access
- B. Group-based access control
- C. MFA
- D. Discretionary access
Answer: B
Explanation:
Implementing group-based access control is the most efficient way to provide access to multiple interns who require the same level of access. This method allows the security team to assign permissions to a group rather than to individual user accounts, thereby reducing the administrative overhead involved in managing access rights for each intern individually. Reference: CompTIA Cloud+ Certification Study Guide (Exam CV0-004) by Scott Wilson and Eric Vanderburg
NEW QUESTION # 134
A security analyst reviews the daily logs and notices the following suspicious activity:
The analyst investigates the firewall logs and identities the following:
Which of the following steps should the security analyst take next to resolve this issue? (Choose two.)
- A. Block all outbound connections from the IP address 10.150.71.151.
- B. Upgrade the Windows x64 operating system on John Smith's computer to the latest version.
- C. Contact John Smith and request the Ethernet cable attached to the desktop be unplugged
- D. Submit an IT support ticket and request Kali Linux be uninstalled from John Smith's computer
- E. Block all inbound connections on port 4444 and block the IP address 201.101.25.121.
- F. Check the running processes to confirm if a backdoor connection has been established.
Answer: E,F
Explanation:
Given the suspicious activity and Kali Linux's association with penetration testing and hacking tools, the security analyst should block all inbound connections on port 4444, as it is commonly used for malicious purposes, and block the IP address that's potentially the source of the intrusion. Additionally, checking the running processes on John Smith's computer is crucial to determine if a backdoor or unauthorized connection has been established.
NEW QUESTION # 135
A company has one cloud-based web server that is prone to downtime during maintenance. Which ot the following should the cloud engineer add to ensure high availability?
- A. A redundant web server behind a load balancer
- B. An autoscaling feature on the web server
- C. A secondary network link to the web server
- D. A backup cloud web server
Answer: A
Explanation:
Adding a redundant web server behind a load balancer is the solution that will ensure high availability. If one server goes down for maintenance, the other can take over, ensuring that the web service remains available without interruption.
Reference: High availability concepts, including the use of load balancers and redundant servers, are part of cloud infrastructure design as per CompTIA Cloud+.
NEW QUESTION # 136
An engineer wants lo scale several cloud workloads on demand. Which of the following approaches is the most suitable?
- A. Trending
- B. Manual
- C. Scheduled
- D. Load
Answer: D
Explanation:
Load scaling is the most suitable approach for scaling several cloud workloads on demand. It automatically adjusts the number of active servers in a cloud environment based on the current load or traffic, ensuring that resources are efficiently utilized to meet demand without manual intervention. This approach helps maintain optimal performance and availability, particularly during unexpected surges in workload or traffic.
NEW QUESTION # 137
A cloud engineer is collecting web server application logs to troubleshoot intermittent issues.
However, the logs are piling up and causing storage issues. Which of the following log mechanisms should the cloud engineer implement to address this issue?
- A. Rotation
- B. Inspection
- C. Splicing
- D. Sampling
Answer: A
Explanation:
Log rotation is the mechanism the cloud engineer should implement to address the issue of logs piling up and causing storage issues. Log rotation involves automatically archiving old log files and creating new ones after a certain size or time period, preventing storage issues.
NEW QUESTION # 138
A cloud engineer is provisioning a new application that requires access to the organization's public cloud resources. Which of the following is the best way for the cloud engineer to authenticate the application?
- A. Username and Password
- B. Access key
- C. API
- D. MFA token
Answer: B
Explanation:
The best way to authenticate an application requiring access to an organization's public cloud resources is through the use of an access key. Access keys provide a secure means of authentication for applications and services without the need for interactive login credentials. This method is particularly useful for automated processes or applications that need to interact with cloud services programmatically, ensuring secure and efficient access control.
Reference: CompTIA Cloud+ content emphasizes the importance of secure authentication mechanisms, such as access keys, in managing and securing access to cloud resources, aligning with best practices for cloud security and application deployment.
NEW QUESTION # 139
Which of the following migration types is best to use when migrating a highly available application, which is normally hosted on a local VM cluster, for usage with an external user population?
- A. Cloud to cloud
- B. On-premises to cloud
- C. On-premises to on-premises
- D. Cloud to on-premises
Answer: B
Explanation:
When migrating a highly available application normally hosted on a local VM cluster for usage with an external user population, the best migration type would be on-premises to cloud. This allows the application to leverage the cloud's scalability and reach, providing better access to the external users. Reference: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Migration
NEW QUESTION # 140
Which of the following best explains the concept of migrating from on premises to the cloud?
- A. The configuration of a dedicated pipeline to transfer content to a remote location
- B. The physical transportation, installation, and configuration of company IT equipment in a cloud services provider's facility
- C. The creation of virtual instances in an external provider to transfer operations of selected servers into a new. remotely managed environment
- D. The extension of company IT infrastructure to a managed service provider
Answer: C
Explanation:
Migrating from on-premises to the cloud generally involves creating virtual instances in an external provider's environment and transferring the operations of selected servers to this new, remotely managed setup. This process allows organizations to leverage the cloud provider's resources and services.
Reference: The migration process and strategies are topics included in the Business Principles of Cloud Environments within the CompTIA Cloud+ curriculum.
NEW QUESTION # 141
A systems engineer is migrating a batch of 25 VMs from an on-premises compute cluster to a public cloud using the public cloud's migration agent. The migration job shows data copies at a rate of 250Mbps. After five servers migrate, the data copies at a rate of 25Mbps. Which of the following should the engineer review first to troubleshoot?
- A. The on-premises VM host hardware utilization
- B. The on-premises ISP throttling rate
- C. The compute utilization of the VMs being migrated
- D. The IOPS on the SAN backing the on-premises cluster
Answer: A
Explanation:
The engineer should review the on-premises VM host hardware utilization first. A decrease in transfer rate after a batch of migrations could suggest that the host hardware resources (like CPU, RAM, or network bandwidth) are becoming saturated, which would slow down additional migrations. Reference: CompTIA Cloud+ Certification Study Guide (Exam CV0-004) by Scott Wilson and Eric Vanderburg.
NEW QUESTION # 142
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