CompTIA CompTIA Certifications CV0-004 Questions & Answers

• Question 161:

  A cloud administrator learns that a major version update. 4.6.0. is available for a business- critical application. The application is currently on version 4.5.2. with additional minor versions 3, 4, and 5 available. The administrator needs to perform the update while minimizing downtime.

  Which of the following should the administrator do first?

  A. Apply the minor updates and then restart the machine before applying the major update.

  B. During off hours, decommission the machine and create a new one directly on major update 4.6.0.

  C. Stop the service and apply the major updates directly.

  D. Create a test environment and apply the major update

  Correct Answer: D

  The first step the administrator should take is to create a test environment and apply the major update there. This allows for testing the new version without impacting the production environment, thus minimizing downtime and the potential for

  unexpected issues.

  References: Creating test environments and conducting thorough testing before applying updates in production is a risk mitigation strategy covered under cloud deployment and operations in the CompTIA Cloud+ certification.

• Question 162:

  A bank informs an administrator that changes must be made to backups for long-term reporting purposes.

  Which of the following is the most important change the administrator should make to satisfy these requirements?

  A. Location of the backups

  B. Type of the backups

  C. Retention of the backups

  D. Schedule of the backups

  Correct Answer: C

  For long-term reporting purposes, the most critical aspect to consider is the retention period of the backups. This is because the bank will likely require access to historical data for audit, compliance, and reporting purposes. The retention policy will need to ensure that backups are kept for the required duration, which may be several years depending on regulatory and business needs. Adjusting the retention policy will help ensure that the necessary data is preserved for as long as it is needed, without unnecessary data accumulation that could lead to higher costs and management complexity. References: CompTIA Cloud+ Certification Study Guide (V0-004) by Scott Wilson and Eric Vanderburg

• Question 163:

  Which of the following network protocols is generally used in a NAS environment?

  A. BGP

  B. RDP

  C. TCP/IP

  D. iSCSI

  Correct Answer: C

  The network protocol generally used in a NAS (Network Attached Storage) environment is TCP/IP (Transmission Control Protocol/Internet Protocol). NAS devices are accessed over a network rather than being directly connected to the

  computer, and they utilize the TCP/IP protocol to enable this network communication.

  References: Understanding of networking protocols, including TCP/IP in the context of NAS environments, is part of the foundational networking knowledge for cloud services in CompTIA Cloud+.

• Question 164:

  A video surveillance system records road incidents and stores the videos locally before uploading them to the cloud and deleting them from local storage.

  Which of the following best describes the nature of the local storage?

  A. Persistent

  B. Ephemeral

  C. Differential

  D. Incremental

  Correct Answer: B

  The nature of the local storage in a video surveillance system that records road incidents and stores the videos locally before uploading them to the cloud and deleting them from local storage is ephemeral. Ephemeral storage is temporary and is designed to provide short-term storage for information that changes frequently or is not meant to be persistent. References: CompTIA Cloud+ Study Guide (V0-004) - Chapter on Cloud Storage Options

• Question 165:

  A cloud engineer is troubleshooting a connectivity issue. The application server with IP 192.168.1.10 in one subnet is not connecting to the MySQL database server with IP 192.168.2 20 in a different subnet. The cloud engineer reviews the following information:

  Application Server Stateful Firewall

  

  Which of the following should the cloud engineer address lo fix the communication issue?

  A. The Application Server Stateful Firewall

  B. The Application Server Subnet Routing Table

  C. The MySQL Server Stateful Firewall

  D. The MySQL Server Subnet Routing Table

  Correct Answer: C

  The connectivity issue between the application server and the MySQL database server in different subnets is likely due to the MySQL Server Stateful Firewall's inbound rules. The application server has an IP of 192.168.1.10, but the MySQL server's inbound rules only permit IP 192.168.1.10/32 on port 3306. This rule allows only a single IP address (192.168.1.10) to communicate on port 3306, which is typical for MySQL. However, if the application server's IP is not 192.168.1.10 or the application is trying to communicate on a different port, it would be blocked. To fix the communication issue, the cloud engineer should address the inbound rules on the MySQL Server Stateful Firewall to ensure that the application server's IP address and therequired port are allowed. References: Based on the information provided in the question and general networking principles.

• Question 166:

  A cloud administrator needs to collect process-level, memory-usage tracking for the virtual machines that are part of an autoscaling group.

  Which of the following is the best way to accomplish the goal by using cloud-native monitoring services?

  A. Configuring page file/swap metrics

  B. Deploying the cloud-monitoring agent software

  C. Scheduling a script to collect the data

  D. Enabling memory monitoring in the VM configuration

  Correct Answer: B

  To collect process-level, memory-usage tracking for virtual machines, deploying cloud- monitoring agent software is the best approach. The agent can gather detailed system metrics and send them to the cloud-native monitoring services for analysis and visualization. References: CompTIA Cloud+ Study Guide (V0-004) - Chapter on Cloud Monitoring

• Question 167:

  A SaaS provider introduced new software functionality for customers as part of quarterly production enhancements. After an update is implemented, users cannot locate certain transactions from an inbound integration. During the investigation, the application owner finds the following error in the logs:

  Error: REST API - Deprecated call is no longer supported in this release.

  Which of the following is the best action for the application owner to take to resolve the issue?

  A. Update the custom integration to use a supported function.

  B. Include the custom integration in the quarterly testing scope.

  C. Ask the users to monitor the quarterly updates.

  D. Revert the application to the last stable quarterly release.

  Correct Answer: A

  The error message indicates that the SaaS provider has deprecated a function that was previously called by the custom integration. The best action for the application owner to take is to update the custom integration to use a function that is supported in the current release. This is a direct solution to the problem and ensures the custom integration conforms to the updated SaaS provider's API. References: Based on the error message provided and standard practices for dealing with deprecated API calls in a SaaS environment.

• Question 168:

  An administrator is setting up a cloud backup solution that requires the following features:

  4.

  Cost effective

  5.

  Granular recovery

  6.

  Multilocation

  Which of the following backup types best meets these requirements?

  A. Off-site, full, incremental, and differential

  B. Cloud site, full, and differential

  C. On-site. full, and incremental

  D. On-site. full, and differential

  Correct Answer: A

  An off-site cloud backup solution that offers full, incremental, and differential backups would best meet the requirements of being cost-effective, allowing granular recovery, and supporting multi-location storage. This combination allows for

  comprehensive backup strategies that can be tailored to the company's needs while optimizing storage costs.

  References: Backup strategies, including full, incremental, and differential backups, are an integral part of data management and protection strategies discussed in the CompTIA Cloud+ objectives.

• Question 169:

  A company has ten cloud engineers working on different manual following is the best method to address this issue?

  A. Deployment documentation

  B. Service logging

  C. Configuration as code

  D. Change ticketing

  Correct Answer: C

  Configuration as code is the best method to address the issue of cloud engineers working on different manual configurations. This practice allows configurations to be scripted and automated, which reduces human error, enhances

  consistency, and makes the deployment process more efficient and reproducible.

  References: Configuration as code is part of cloud deployment best practices, ensuring standardized environments, which is a key topic within the CompTIA Cloud+ curriculum.

• Question 170:

  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

  Correct Answer: D

  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.