CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 441:

  A system administrator supports an application in the cloud, which includes a restful API that receives an encrypted message that is passed to a calculator system. The administrator needs to ensure the proper function of the API using a new automation tool. Which of the following techniques would be BEST for the administrator to use to accomplish this requirement?

  A. Functional testing
  B. Performance testing
  C. Integration testing
  D. Unit testing
  A. Functional testing

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  Explanation

  Functional testing is a testing technique that involves testing the functionality of an application to ensure that it performs the intended tasks correctly. In this case, the API is expected to receive an encrypted message and pass it to a calculator system, so functional testing can help ensure that the API is working properly and is passing the message correctly to the calculator system. Other types of testing, such as performance testing, integration testing, and unit testing, may also be useful in some contexts, but functional testing is the most appropriate option for ensuring that the API is functioning properly.

  https://www.softwaretestinghelp.com/the-difference-between-unit-integration- and-functional-testing/

• Question 442:

  A systems administrator notices the host filesystem is running out of storage space. Which of the following will best reduce the storage space on the system?

  A. Deduplication
  B. Compression
  C. Adaptive optimization
  D. Thin provisioning
  A. Deduplication

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  Explanation

  Deduplication is a technique that reduces the storage space by eliminating duplicate data blocks and replacing them with pointers to the original data. Deduplication can help free up the host filesystem by removing redundant data and increasing the storage efficiency. Deduplication can be performed at the source or the target, and it can be applied at the file or block level.

  References: [CompTIA Cloud+ CV0-003 Certification Study Guide], Chapter 4, Objective 4.3: Given a scenario, troubleshoot common storage issues.

• Question 443:

  A systems administrator is helping to develop a disaster recovery solution. The solution must ensure all production capabilities are available within two hours. Which of the following will BEST meet this requirement?

  A. A hot site
  B. A warm site
  C. A backup site
  D. A cold site
  A. A hot site

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  Explanation

  A hot site is what would best meet the requirement of ensuring all production capabilities are available within two hours for a disaster recovery solution. A disaster recovery solution is a plan or process of restoring normal operation and performance of a system or service after a disruption or disaster. A disaster recovery solution can use different types of sites or locations to store and recover data or resources, such as:

  A hot site: This is a site or location that has a fully operational and ready-to-use replica or copy of the original system or service, including data, resources, applications, etc. A hot site can provide benefits such as:

  Availability: A hot site can provide availability by ensuring that the system or service can be switched or transferred to the hot site immediately or within minutes after a disruption or disaster, without any downtime or interruption.

  Capability: A hot site can provide capability by ensuring that the system or service can function and perform at the same level or quality as the original system or service, without any loss or degradation.

  A warm site: This is a site or location that has a partially operational and ready-to-use replica or copy of the original system or service, including some data, resources, applications, etc. A warm site can provide benefits such as:

  Affordability: A warm site can provide affordability by reducing the cost of maintaining and updating the replica or copy of the original system or service, compared to a hot site.

  Flexibility: A warm site can provide flexibility by allowing customers to customize and configure the replica or copy of the original system or service according to their needs and preferences, compared to a hot site.

  A cold site: This is a site or location that has no operational and ready-to-use replica or copy of the original system or service, but only has the necessary infrastructure or facilities to support it, such as power, network, space, etc. A cold site can provide benefits such as:

  Scalability: A cold site can provide scalability by enabling customers to expand and grow their replica or copy of the original system or service as needed, without any limitations or constraints.

  Security: A cold site can provide security by minimizing the exposure or risk of the replica or copy of the original system or service to any threats or attacks, compared to a hot site or a warm site

  https://searchdisasterrecovery.techtarget.com/definition/hot-site

• Question 444:

  A company is migrating workloads from on premises to the cloud and would like to establish a connection between the entire data center and the cloud environment. Which of the following VPN configurations would accomplish this task?

  A. Site-to-site
  B. Client-to-site
  C. Point-to-site
  D. Point-to-point
  A. Site-to-site

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  Explanation

• Question 445:

  A systems administrator has finished installing monthly updates to servers in a cloud environment. The administrator notices certain portions of the playbooks are no longer functioning. Executing the playbook commands manually on a server does not work as well. There are no other reports of issues.

  Which of the following is the MOST likely cause of this issue?

  A. Change management failure
  B. Service overload
  C. Patching failure
  D. Job validation issues
  E. Deprecated features
  E. Deprecated features

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  Explanation

  Deprecated features are features that are no longer supported or recommended by the software vendor or provider. They may be removed or replaced by newer features in future updates or versions. If a playbook relies on deprecated features, it may stop functioning after an update or patch is applied to the software. The administrator should check the release notes or documentation of the software to identify and replace any deprecated features in the playbook.

• Question 446:

  An integration application that communicates between different application and database servers is currently hosted on a physical machine. A P2V migration needs to be done to reduce the hardware footprint. Which of the following should be considered to maintain the same level of network throughput and latency in the virtual server?

  A. Upgrading the physical server NICs to support 10Gbps
  B. Adding more vCPU
  C. Enabling SR-IOV capability
  D. Increasing the VM swap/paging size
  C. Enabling SR-IOV capability

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  Explanation

• Question 447:

  An organization deployed an application using a cloud provider's internal managed certificates. Developers are unable to retrieve data when calling the API from any machine.

  The following error message is in the log:

  12-04-2023-10:05:25, SSL Negotiation Error 12-04-2023-10:05:28,Invalid Certificate 12-04-2023-10:05:29, TLS Handshake Failed 12-04-2023-10:05:30,Connection Closed

  Which of the following is the most likely cause of the error?

  A. TLS version
  B. Insecure cipher
  C. Self-signed certificate
  D. Root trust
  D. Root trust

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  Explanation

  The error message indicates that the SSL/TLS handshake failed due to an invalid certificate. This means that the client machine does not trust the certificate authority (CA) that issued the certificate for the cloud provider's API. A self-signed certificate or an insecure cipher would not cause this error, as they would be detected during the certificate validation process. The TLS version is not relevant, as the error occurs before the protocol negotiation. The most likely cause of the error is that the client machine does not have the root CA certificate installed in its trust store, or that the cloud provider's certificate chain is incomplete or broken. To fix the error, the client machine needs to install the root CA certificate or the cloud provider needs to fix its certificate chain.

  References: The Official CompTIA Cloud+ Self-Paced Study Guide (CV0-003) eBook, Chapter 6, Section 6.2, page

• Question 448:

  An organization requires the following to be achieved between the finance and marketing departments:

  1.Allow HTTPS/HTTP.

  2.Disable FTP and SMB traffic.

  Which of the following is the MOST suitable method to meet the requirements?

  A. Implement an ADC solution to load balance the VLAN traffic
  B. Configure an ACL between the VLANs
  C. Implement 802.1X in these VLANs
  D. Configure on-demand routing between the VLANs
  B. Configure an ACL between the VLANs

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  Explanation

  An access control list (ACL) is a set of rules that defines which traffic is allowed or denied between different network segments or devices. An ACL can be used to filter traffic based on various criteria, such as source and destination addresses, ports, protocols, and applications. Configuring an ACL between the VLANs of the finance and marketing departments is the most suitable method to meet the requirements of allowing HTTPS/HTTP and disabling FTP and SMB traffic. An ACL can specify which ports and protocols are permitted or blocked between the VLANs, such as allowing port 80 (HTTP) and port 443 (HTTPS), and denying port 21 (FTP) and port 445 (SMB).

  References: [CompTIA Cloud+ Certification Exam Objectives], page 15, section 2.8

• Question 449:

  A systems administrator notices several VMs are constantly ballooning, while the memory usage of several other VMs is significantly lower than their resource allocation. Which of the following will MOST likely solve the issue?

  A. Right-sizing
  B. Bandwidth increase
  C. Cluster placement
  D. Storage tiers
  A. Right-sizing

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  Explanation

• Question 450:

  A company has two primary offices, one in the United States and one in Europe. The company uses a public IaaS service that has a global data center presence to host its marketing materials. The marketing team, which is primarily based in Europe, has reported latency issues when retrieving these materials. Which of the following is the BEST option to reduce the latency issues?

  A. Add an application load balancer to the applications to spread workloads.
  B. Integrate a CDN solution to distribute web content globally.
  C. Upgrade the bandwidth of the dedicated connection to the IaaS provider.
  D. Migrate the applications to a region hosted in Europe.
  B. Integrate a CDN solution to distribute web content globally.

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  Explanation

  The best option to reduce the latency issues for the marketing team that is primarily based in Europe when retrieving the marketing materials that are hosted on a public IaaS service is to integrate a CDN (content delivery network) solution to distribute web content globally. A CDN is a network of geographically distributed servers that cache and deliver web content to users based on their proximity and network conditions. A CDN can improve the performance and availability of web content by reducing the distance and hops between the users and the servers, as well as offloading the traffic from the origin server.

  [CompTIA Cloud+ Certification Exam Objectives], Domain 3.0 Maintenance, Objective 3.4 Given a scenario, implement automation and orchestration to optimize cloud operations

  https://www.cloudflare.com/learning/cdn/what-is-a-cdn/