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.
A software engineer at a cybersecurity company wants to access the cloud environment. Per company policy, the cloud environment should not be directly accessible via the internet. Which of the following options best describes how the software engineer can access the cloud resources?
A bastion host is the best option described for accessing cloud resources without direct internet access. It acts as a secure gateway to access internal networks from external sources and is often used in conjunction with other security measures such as SSH for secure connections.
: The use of bastion hosts as a secure access point to cloud resources is a security best practice covered in the CompTIA Cloud+ certification's domain on cloud security.
A company recently set up a CDN for its photography and image-sharing website. Which of the following is the most likely reason for the company's action?
The most likely reason for setting up a Content Delivery Network (CDN) is to improve site speed, especially for a photography and image-sharing website. CDNs cache content at edge locations closer to end-users, significantly reducing load times for static assets like images and videos. This enhancement in speed can improve user experience and site performance.
References: CompTIA Cloud+ resources and CDN functionality
An DevOps engineer is receiving reports that users can no longer access the company's web application after hardening of a web server. The users are receiving the following error:
ERR_SSLJ/ERSION_OR_CIPHER_MISMATCH.
Which of the following actions should the engineer take to resolve the issue?
To resolve the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error after hardening a web server, the engineer should configure the server to use TLS 1.2 or newer. This error often occurs when the server or client supports an outdated version of SSL/TLS or incompatible cipher suites. Updating to a modern, secure version of TLS ensures compatibility and enhances security.
: The CompTIA Cloud+ certification includes governance, risk, compliance, and security for the cloud, emphasizing the importance of implementing up-to-date security protocols like TLS to protect data in transit and ensure secure communications in cloud environments.
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