CompTIA CV0-004 Online Practice Questions and Exam Preparation

CompTIA CV0-004 Online Questions & Answers

• Question 281:

  A network engineer wants to implement a service that has the following characteristics: Highly flexible Centralized Programmatic Dynamically adjustable to traffic.

  Which of the following is the best approach?

  A. Software-defined network
  B. Virtual private network
  C. Content delivery network
  D. Network load balancer
  A. Software-defined network

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  Explanation

  A software-defined network (SDN) provides centralized management and programmatic control of network resources through software rather than manual device configuration. It allows network behavior to be dynamically adjusted based on traffic demands while maintaining flexibility and centralized administration, making it the best fit for the stated requirements.

• Question 282:

  Which of the following best describes the list of known security vulnerabilities?

  A. Common Weaknesses and Enumerations
  B. Data Security Standards
  C. Zero Trust
  D. Common Vulnerabilities and Exposures
  D. Common Vulnerabilities and Exposures

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  Explanation

  CVE (Common Vulnerabilities and Exposures) is a publicly available list that identifies known security vulnerabilities in software and hardware. Each vulnerability is assigned a unique CVE ID, helping organizations track and address security risks effectively. The CVE database is widely used by security professionals to assess potential threats and apply necessary patches or mitigations.

• Question 283:

  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
  A. Using Terraform templates with environment variables

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  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.

  References:

  CompTIA Cloud+ Certification Study Guide (Exam CV0-004) by Scott Wilson and Eric Vanderburg.

• Question 284:

  A project manager is reviewing quality planning techniques.

  Which of the following involves comparing the results of similar activities?

  A. Performing a cost-benefit analysis
  B. Defining metrics
  C. Benchmarking
  D. Brainstorming
  C. Benchmarking

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  Explanation

  Benchmarking is a quality planning technique that compares results, processes, or best practices from similar activities or organizations. It is used to establish realistic performance standards and identify opportunities for improvement. Unlike cost-benefit analysis, which focuses on financial evaluation, benchmarking emphasizes performance comparison.

  References:

  CompTIA Project+ PK0-005 - Quality Planning Techniques

  CompTIA Cloud+ CV0-004 Operations and Support domain.

• Question 285:

  Which of the following is a protocol frequently used with IoT devices to communicate with a gateway?

  A. ICMP
  B. MQTT
  C. RPC
  D. SSH
  B. MQTT

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  Explanation

  MQTT (Message Queuing Telemetry Transport) is a lightweight publish/subscribe protocol commonly used by IoT devices to communicate with gateways and cloud services due to its efficiency on low-bandwidth, high-latency networks.

• Question 286:

  Which of the following requirements are core considerations when migrating a small business's on-premises applications to the cloud? (Select two).

  A. Availability
  B. Hybrid
  C. Testing
  D. Networking
  E. Compute
  F. Logs
  A. Availability
  D. Networking

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  Explanation

  When migrating on-premises applications to the cloud for a small business, availability and networking are core considerations. Ensuring that applications are available and that the network is capable of handling the new cloud traffic are pivotal for a successful transition.

  References:

  The migration process and its core considerations, including availability and networking, are topics within the Business Principles of Cloud Environments in the CompTIA Cloud+ material.

• Question 287:

  A developer is building a tool on the cloud that needs to allow other developers to programmatically read and write to the web application resources.

  Which of the following should the developer do to meet these requirements with the least complexity?

  A. Build a REST API endpoint.
  B. Allow access via the cloud portal.
  C. Provision cloud-based SQL access.
  D. Implement RPC on the web application.
  A. Build a REST API endpoint.

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  Explanation

  A REST API (Representational State Transfer Application Programming Interface) is the simplest and most effective way to allow other developers to programmatically read and write to web application resources.

  REST APIs use standard HTTP methods (GET, POST, PUT, DELETE) and provide scalability, flexibility, and ease of integration with various programming languages and cloud services.

• Question 288:

  Which of the following best explains RPO?

  A. The time needed to recover from a disaster
  B. The acceptable amount of data loss after a disaster
  C. The estimated amount of data loss after a disaster
  D. The time estimated between disasters
  B. The acceptable amount of data loss after a disaster

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  Explanation

  Recovery Point Objective (RPO) defines the maximum acceptable amount of data loss measured in time after a disruption or disaster. It determines how far back data can be recovered and helps organizations establish backup frequency requirements.

• Question 289:

  A company wants to build a database that will receive requests from its application, but it also has a lot of customer data that must be archived.

  Which of the following solutions takes into consideration performance and cost implications?

  A. SSD for the customer data, SSD for the database
  B. SSD for the database, HDD for the customer data
  C. Object storage for the database, SSD for the customer data
  D. Object storage for the customer data, HDD for the database
  B. SSD for the database, HDD for the customer data

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  Explanation

  Databases that handle application requests require high-performance storage with low latency and fast I/O operations, making SSDs the best choice. Archived customer data is accessed less frequently and is better suited for lower-cost HDD storage. This combination balances performance requirements for the database with cost-effective storage for archival data.

• Question 290:

  A company has solid, validated border protection including a next-generation firewall and IPS. However, compromises and breaches continue.

  Which of the following is the best way to improve the company's security controls and reduce the number of incidents?

  A. Assess the border protection assets against a CIS benchmark and apply recommendations.
  B. Execute a network scan on the border protection and close ports that can be used by attackers.
  C. Shift the focus from border protection to a Zero Trust architecture focused on identities.
  D. Include a WAF on the network border, increasing protection and adopting security in layers.
  C. Shift the focus from border protection to a Zero Trust architecture focused on identities.

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  Explanation

  Even with strong border protection, attackers often bypass perimeter defenses through phishing, stolen credentials, or insider threats. Adopting a Zero Trust architecture improves security by continuously verifying users, devices, and identities regardless of location, significantly reducing incidents beyond the network border.