CompTIA CV0-004 Practice Test
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Updated On : 13-Aug-2025256 Questions
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An e-commerce store is preparing for an annual holiday sale. Previously, this sale has increased the number of transactions between two and ten times the normal level of transactions. A cloud administrator wants to implement a process to scale the web server seamlessly. The goal is to automate changes only when necessary and with minimal cost. Which of the following scaling approaches should the administrator use?
A. Scale horizontally with additional web servers to provide redundancy.
B. Allow the load to trigger adjustments to the resources.
C. When traffic increases, adjust the resources using the cloud portal.
D. Schedule the environment to scale resources before the sale begins.
Explanation: To seamlessly scale the web server for an e-commerce store during an annual sale, it's best to allow the load to trigger adjustments to the resources. This approach uses auto scaling to automatically adjust the number of active servers based on the current load, ensuring an automated change that is cost-effective.
A cloud solutions architect needs to have consistency between production, staging, and development environments. Which of the following options will best achieve this goal?
A. Using Terraform templates with environment variables
B. Using Grafana in each environment
C. Using the ELK stack in each environment
D. Using Jenkins agents in different environments
Explanation: Terraform templates with environment variables can ensure consistency across different environments such as production, staging, and development. Terraform allows for infrastructure as code, which can be used to define and maintain infrastructure with consistency.
Which of the following describes the main difference between public and private container repositories?
A. Private container repository access requires authorization, while public repository access does not require authorization
B. Private container repositories are hidden by default and containers must be directly referenced, while public container repositories allow browsing of container images.
C. Private container repositories must use proprietary licenses, while public container repositories must have open-source licenses.
D. Private container repositories are used to obfuscate the content of the Dockerfile, while public container repositories allow for Dockerfile inspection.
Explanation: The main difference between public and private container repositories lies in access control. Public repositories allow users to download and use container images without requiring any authorization, making them accessible to anyone. On the other hand, private repositories require users to have proper authorization, usually through credentials, to access the container images, thus providing a level of privacy and security control.
Which of the following provides secure, private communication between cloud environments without provisioning additional hardware or appliances?
A. VPN
B. VPC peering
C. BGP
D. Transit gateway
Explanation: VPC peering provides secure, private communication between cloud environments without the need for provisioning additional hardware or appliances. It allows direct network connectivity between two Virtual Private Clouds (VPCs), enabling resources in either VPC to communicate with each other using private IP addresses.
Two CVEs are discovered on servers in the company's public cloud virtual network. The CVEs are listed as having an attack vector value of network and CVSS score of 9.0. Which of the following actions would be the best way to mitigate the vulnerabilities?
A. Patching the operating systems
B. Upgrading the operating systems to the latest beta
C. Encrypting the operating system disks
D. Disabling unnecessary open ports
Explanation: For vulnerabilities with a high CVSS score and a network attack vector, the most effective and direct mitigation action is to patch the operating systems. Patching addresses the specific vulnerabilities that have been identified and helps to secure the servers against the known exploits that could take advantage of these CVEs.
Which of the following strategies requires the development of new code before an application can be successfully migrated to a cloud provider?
A. Refactor
B. Rearchitect
C. Rehost
D. Replatform
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.
Which of the following is a direct effect of cloud migration on an enterprise?
A. The enterprise must reorganize the reporting structure.
B. Compatibility issues must be addressed on premises after migration.
C. Cloud solutions will require less resources than on-premises installations.
D. Utility costs will be reduced on premises.
Explanation: Cloud migration typically results in a reduction of on-premises utility costs because the physical infrastructure requirements, such as power and cooling, are transferred to the cloud provider. This shift can lead to significant savings in utility expenses for the enterprise.
A cloud engineer wants to implement a disaster recovery strategy that:
- Is cost-effective.
- Reduces the amount of data loss in case of a disaster.
- Enables recovery with the least amount of downtime.
A. Cold site
B. Off site
C. Warm site
D. Hot site
Explanation: A hot site is a disaster recovery strategy that is cost-effective, minimizes data loss, and allows for the fastest recovery time in case of a disaster. It is an exact replica of the original site of the organization, with full computer systems as well as near-complete backups of user data. Hot sites are operational 24/7 and can take over functionality from the primary site immediately or with minimal delay.
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. Splicing
B. Rotation
C. Sampling
D. Inspection
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.
A high-usage cloud resource needs to be monitored in real time on specific events to guarantee its availability. Which of the following actions should be used to meet this requirement?
A. Configure a ping command to identify when the cloud instance is out of service.
B. Create a dashboard with visualizations to filter the status of critical activities.
C. Collect all the daily activity from the cloud instance and create a dump file for analysis.
D. Schedule an hourly scan of the network to check for the availability of the resource.
Explanation: To guarantee real-time monitoring of a high-usage cloud resource, creating a dashboard with visualizations to filter the status of critical activities is effective. This allows for a quick visual assessment of the system's health and performance, enabling immediate action if specific events indicate potential issues with availability.
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