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CompTIA CV0-004 Exam Questions
Free CompTIA CV0-004 Exam Actual Questions
Note: Premium Questions for CV0-004 were last updated On Jun. 28, 2026 (see below)
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?
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. References: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Migration
Which of the following integration systems would best reduce unnecessary network traffic by allowing data to travel bidirectionally and facilitating real-time results for developers who need to display critical information within applications?
Web sockets provide a full-duplex communication channel over a single, long-lived connection, allowing data to flow bidirectionally between a client and a server. This is ideal for real-time applications where developers need to display critical information without unnecessary network overhead, as it reduces the need for repetitive HTTP requests and allows for more efficient, instantaneous data updates and interactions.
A customer relationship management application, which is hosted in a public cloud laaS network, is vulnerable to a remote command execution vulnerability. Which of the following is
the best solution for the security engineer to implement to prevent the application from being exploited by basic attacks?
A Web Application Firewall (WAF) is the best solution to implement for a public cloud IaaS hosted customer relationship management application vulnerable to remote command execution attacks. WAFs are designed to monitor, filter, and block malicious HTTP/S traffic to and from a web application to protect against various application layer attacks, including remote command execution. References: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Security in the Cloud
A company's engineering department is conducting a month-long test on the scalability of an in-house-developed software that requires a cluster of 100 or more servers. Which of
the following models is the best to use?
For testing the scalability of an in-house-developed software that requires a cluster of 100 or more servers, Infrastructure as a Service (IaaS) is the best model. IaaS provides the necessary compute resources and allows the engineering department to configure the environment as needed for their specific test without the constraints that might be present in PaaS or SaaS offerings. References: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Service Models
An on-call cloud engineer receives a critical alert about an e-commerce web server being unresponsive. Which of the following steps should the engineer take first?
In CompTIA Cloud+ (CV0-004) objectives covering operations, incident response, and troubleshooting, the first action after receiving a critical alert is triage. Triage is the rapid initial assessment that confirms the alert is real, determines the scope and impact (single host vs. entire service), identifies immediate risks (customer impact, revenue loss, security implications), and prioritizes the response. During triage, the engineer checks key indicators such as health checks, uptime monitors, recent deployments, system metrics (CPU, memory, disk, network), and logs to establish what is failing and how widespread it is. This step guides the most effective next actions and prevents wasting time on incorrect assumptions.
Remediation (B) comes after triage because you need enough facts to choose the correct fix (restart service, fail over, scale out, roll back, etc.). Escalation (C) may be required, but it is typically based on triage findings---severity, ownership, and whether additional expertise is needed. Monitoring (D) is ongoing and supports detection and validation, but it is not the first step once an incident has already been detected. Therefore, triage is the correct first step.
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