CompTIA CV0-004 Practice Test

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Updated On : 16-Jul-2025
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A company serves customers globally from its website hosted in North America. A cloud engineer recently deployed new instances of the website in the Europe region. Which of the following is the most likely reason?

A. To simplify workflow

B. To enhance security

C. To reduce latency

D. To decrease cost

C.   To reduce latency


Explanation:

The most likely reason for deploying new instances of a website in the Europe region, in addition to the ones hosted in North America, is to reduce latency for users located in Europe. By having the website's resources closer to the end-users, the data has a shorter distance to travel, resulting in faster load times and better performance.

References:

CompTIA Cloud+ Study Guide (Exam CV0-004) by Todd Montgomery and Stephen Olson

An organization has been using an old version of an Apache Log4j software component in its critical software application. Which of the following should the organization use to calculate the severity of the risk from using this component?

A. CWE

B. CVSS

C. CWSS

D. CVE

B.   CVSS


Explanation:

The Common Vulnerability Scoring System (CVSS) is what the organization should use to calculate the severity of the risk from using an old version of Apache Log4j software component. CVSS provides an open framework for communicating the characteristics and impacts of IT vulnerabilities.

References:

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

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 throttling

B. API gateway outage

C. Web server outage

D. Oversubscription

E. Unauthorized access

F. Insufficient quota

A.   API throttling

F.   Insufficient quota

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.References: API throttling and quota management are key concepts in the management of cloud resources, as highlighted in the CompTIA Cloud+ curriculum.

Which of the following would allow a cloud engineer to flatten a deeply nested JSON log to improve readability for analysts?

A. Grafana

B. Kibana

C. Elastic search

D. Log stash

D.   Log stash


Explanation:

Log stash can be used to flatten a deeply nested JSON log, which would improve readability for analysts. Log stash is a data processing pipeline that ingests data from various sources, transforms it, and then sends it to a "stash" like Elastic search.

References:

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

A systems administrator needs to configure backups for the company's on-premises VM cluster. The storage used for backups will be constrained on free space until the company can implement cloud backups. Which of the following backup types will save the most space, assuming the frequency of backups is kept the same?

A. Snapshot

B. Ful

C. Differential

D. Incremental

D.   Incremental


Explanation:

An incremental backup strategy saves space because it only backs up data that has changed since the last backup. Compared to full and differential backups, incremental backups aresmaller and save more space, which is essential when storage is constrained.

References: CompTIA Cloud+ Guide to Cloud Computing (ISBN: 978-1-64274-282-2)

Servers in the hot site are clustered with the main site.

A. Network traffic is balanced between the main site and hot site servers.

B. Offline server backups are replicated hourly from the main site.

C. All servers are replicated from the main site in an online status.

D. Which of the following best describes a characteristic of a hot site?

C.   All servers are replicated from the main site in an online status.


Explanation:

When servers in a hot site are clustered with the main site, it indicates that all servers are replicated from the main site in an online status. This means that the hot site maintains a live, real-time copy of data and applications, ensuring immediate availability in the event of a failure at the main site. Unlike options A and B, which describe load balancing and backup strategies respectively, clustering with a hot site as described in option C ensures that the hot site can take over with minimal downtime, maintaining business continuity.

References:

CompTIA Cloud+ CV0-004 Study Guide and Official CompTIA Content

An IT security team wants to ensure that the correct parties are informed when a specific user account is signed in. Which of the following would most likely allow an administrator to address this concern?

A. Creating an alert based on user sign-in criteria

B. Aggregating user sign-in logs from all systems

C. Enabling the collection of user sign-in logs

D. Configuring the retention of all sign-in logs

A.   Creating an alert based on user sign-in criteria


Explanation:

To ensure that the correct parties are informed when a specific user account is signed in, the best action is to create an alert based on user sign-in criteria. This alert can notify administrators or security personnel when the specified event occurs.References: Security monitoring and alerting are critical components of managing cloud environments securely, as discussed in the CompTIA Cloud+ certification.

A cloud engineer needs to deploy a new version of a web application to 100 servers. In the past, new version deployments have caused outages. Which of the following deployment types should the cloud engineer implement to prevent the outages from happening this time?

A. Rolling

B. Blue-green

C. Canary

D. Round-robin

C.   Canary


Explanation:

A canary deployment is a pattern that reduces the risk of introducing a new software version in production by slowly rolling out the change to a small subset of users before rolling it out to the entire infrastructure. It's an effective strategy to prevent outages since it allows for monitoring and quick rollback if issues arise without affecting all users.

References:

Canary releases are part of deployment strategies that can help mitigate the risk of outages during updates, a concept included in the CompTIA Cloud+ curriculum.

A software engineer needs to transfer data over the internet using programmatic access while also being able to query the data. Which of the following will best help the engineer to complete this task?

A. SQL

B. Web sockets

C. RPC

D. GraphQL

D.   GraphQL


Explanation:

GraphQL is the best option for transferring data over the internet with programmatic access and querying capabilities. It is a query language for APIs and a runtime for executing those queries with existing data, providing a more efficient, powerful, and flexible alternative to the REST API.

References:

Data transfer and querying methods are part of the technical knowledge associated with cloud computing, as included in CompTIA Cloud+.

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?

A. REST API

B. RPC

C. GraphQL

D. Web sockets

D.   Web sockets


Explanation:

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.
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Get Certified in Cloud Technologies with CompTIA Cloud+ CV0-004


CompTIA Cloud+ CV0-004 certification is a globally recognized credential for IT professionals who build, manage, and secure cloud environments. Unlike vendor-specific certifications, CompTIA Cloud+ focuses on the skills required to deploy and operate cloud solutions across a variety of platforms, making it an excellent choice for professionals working in hybrid or multi-cloud environments.

Exam Overview: Key Focus Areas


Cloud Architecture and Design — Understanding cloud models, requirements, and solution designs
Cloud Security — Implementing security controls, compliance standards, and data protection techniques
Deployment — Managing cloud resources, virtualization, storage, and network configurations
Operations and Support — Performing monitoring, maintenance, and optimization of cloud environments
Troubleshooting — Diagnosing and resolving issues related to performance, connectivity, and security

Exam Details


Exam Code: CV0-004
Number of Questions: Maximum of 90
Question Types: Multiple-choice and performance-based
Length: 90 minutes
Passing Score: 750 (on a scale of 100–900)
Recommended Experience: 2–3 years in system administration or networking, with cloud experience

Who Should Take Cloud+ CV0-004?


This certification is ideal for:

Cloud Engineers validating vendor-neutral skills
Systems Administrators transitioning to cloud roles
Security Specialists focusing on cloud environments
DevOps Professionals managing cloud infrastructure
IT Professionals needing DoD 8570 compliance

Recommended Experience:
CompTIA Network+ and Server+ (or equivalent)
2-3 years of systems administration experience
6+ months hands-on with cloud platforms

Prepare for Real Cloud Challenges

The performance-based questions on automation troubleshooting were identical to my daily work as a cloud engineer. Passed with a 790!
Andrew, Cloud Infrastructure Specialist