CV0-003練習テスト問題解答には更新された464問があります
CV0-003問題集はCompTIA Cloud+合格確定させる練習で464問があります
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質問 # 50
A systems administrator is performing an OS upgrade on a production VM. Which of the following actions should the administrator take before the upgrade to ensure the FASTEST recovery of the system in case the upgrade fails in an unrecoverable way?
- A. Test the upgrade in a preproduction environment.
- B. Take a snapshot of the system.
- C. Perform a full backup.
- D. Submit the upgrade to the CAB.
正解：B
解説：
Explanation
A snapshot is an image of your system/volume at a specific point in time. It captures the entire file system as it was when the snapshot was taken. When a snapshot is used to restore the system, the system will revert to exactly how it was at the time of the snapshot1. Snapshots are designed for short-term storage and fast recovery. They do not need a lot of storage space or time to create copies234.
Taking a snapshot of the system before the OS upgrade would ensure the fastest recovery of the system in case the upgrade fails in an unrecoverable way. The administrator could simply restore the system from the snapshot and avoid any data loss or corruption. This would be much faster and easier than performing a full backup or testing the upgrade in a preproduction environment.
質問 # 51
A CASB provides the application proxy and web application firewall to a large retailer. All access to the retailer cloud application must originate from the CASB-designated IP addresses. The CASB has known geolocations with known IP addresses. Suddenly, all customers are not able to access the retailer cloud applications. Which of the following is MOST likely the reason for the issue?
- A. The CASB's SSL/TLS certificate expired
- B. All of the CASB's European datacenters are down
- C. There was federation and SSO misconfiguration
- D. Additional CASB IP addresses were added to the authorized pool
正解：A
質問 # 52
A Type 1 hypervisor has the following specifications:
RAM 128GB
CPU 4 socket quad-core
Storage 16TB
Each VM must have 8GB RAM, 1 vCPU, and 512GB storage. Which of the following is the MAXIMUM number of VMs that can be hosted on this hypervisor?
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
質問 # 53
A cloud engineer is responsible for managing two cloud environments from different MSPs. The security department would like to inspect all traffic from the two cloud environments.
Which of the following network topology solutions should the cloud engineer implement to reduce long-term maintenance?
- A. Hub and spoke
- B. Mesh
- C. Star
- D. Chain
正解：A
解説：
Hub and spoke is a type of network topology that consists of a central node or device (hub) that connects to multiple peripheral nodes or devices (spokes). Hub and spoke can help reduce long-term maintenance for managing two cloud environments from different MSPs, as it can simplify and centralize the network configuration and management by using the hub as a single point of contact and control for the spokes. Hub and spoke can also improve network performance and security, as it can reduce latency, bandwidth consumption, and network congestion by routing traffic through the hub. Reference: CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8
質問 # 54
A systems administrator needs to configure a set of policies to protect the data to comply with mandatory regulations.
Which of the following should the administrator implement to ensure DLP efficiently prevents the exposure of sensitive data in a cloud environment?
- A. Versioning
- B. Integrity
- C. Segmentation
- D. Classification
正解：D
解説：
Explanation
Classification is a process of assigning labels or categories to data based on its sensitivity, value, or risk level.
Classification can help implement data loss prevention (DLP) policies by identifying which data needs to be protected and how to protect it according to its classification level. Classification can also help comply with mandatory regulations by ensuring that data is handled and stored appropriately based on its legal or contractual requirements. Classification is essential for DLP to efficiently prevent the exposure of sensitive data in a cloud environment. References: CompTIA Cloud+ Certification Exam Objectives, page 14, section
2.7
質問 # 55
An organization has multiple VLANs configured to segregate the network traffic. Following is the breakdown of the network segmentation:
Production traffic (10.10.0.0/24)
Network backup (10.20.0.0/25)
Virtual IP network (10.20.0.128/25)
The following configuration exists on the server:
The backup administrator observes that the weekly backup is failing for this server. Which of the following commands should the administrator run to identify the issue?
- A. ROUTE PRINT
- B. NET SM
- C. NETSTAT -A
- D. IPCONFIG /ALL
正解：A
解説：
Reference:
https://www.toolbox.com/tech/operating-systems/blogs/using-the-route-print-command-in- windows-7-022310/
質問 # 56
A DevOps administrator is building a new application slack in a private cloud. This application will store sensitive information and be accessible from the internet. Which of the following would be MOST useful in maintaining confidentiality?
- A. DLP
- B. EDR
- C. NAC
- D. IDS
正解：A
解説：
Explanation
The most useful tool in maintaining confidentiality for a new application stack that will store sensitive information and be accessible from the internet is data loss prevention (DLP). DLP is a type of security solution that monitors and controls the flow of data in and out of a system or network. It can detect and prevent unauthorized access, transmission, or leakage of sensitive data, such as personal information, financial records, or intellectual property. DLP can also enforce encryption, masking, or deletion of sensitive data to protect its confidentiality. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 2.0 Security, Objective 2.5 Given a scenario, apply data security techniques in the cloud.
質問 # 57
A large pharmaceutical company needs to ensure it is in compliance with the following requirements:
* An application must run on its own virtual machine.
* The hardware the application is hosted on does not change.
Which of the following will BEST ensure compliance?
- A. Affinity rules
- B. Load balancers
- C. A firewall
- D. Containers
正解：A
解説：
Explanation
According to the Virtual Machine Affinity and Anti-Affinity - VMware Docs1, affinity and anti-affinity rules allow you to spread a group of virtual machines across different ESXi hosts or keep a group of virtual machines on a particular ESXi host. An affinity rule places a group of virtual machines on a specific host so that you can easily audit the usage of those virtual machines.
Containers are "a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another" 2. Containers can run on any virtual machine or physical server, and they can be moved between different hosts without affecting the application functionality.
A firewall is "a device or software that monitors and controls the incoming and outgoing network traffic based on predefined rules" 3. A firewall can help protect a cloud environment from unauthorized access and malicious attacks, but it does not affect the placement of virtual machines on hosts.
Load balancers are "devices or software that distribute network or application traffic across a number of servers" . Load balancers can help improve the performance and availability of a cloud environment by distributing the workload among multiple servers, but they do not affect the placement of virtual machines on hosts.
Based on this information, I think the best answer to your question is C. Affinity rules. Affinity rules can help the pharmaceutical company ensure compliance by placing the application on its own virtual machine and keeping it on the same host. This way, the company can easily audit the usage of the application and avoid any changes in the hardware configuration.
質問 # 58
A data architect is planning a new deployment of data storage virtualization before a cloud migration to a public cloud. The requirement is to provide deduplication and backup policy management that is separate from the data VMs. Which of the following would be best to utilize to provision storage?
- A. Containerized storage
- B. Software-defined storage
- C. Thick-provisioning storage
- D. RAID 10 disk-array storage
正解：B
解説：
1. Understanding the Requirement:
The storage must support deduplication and backup policy management.
The solution must be virtualized and separate from data VMs, ensuring flexibility and centralized management.
2. Analyzing the Options:
A . Software-defined storage:
Correct. SDS abstracts storage resources from hardware, allowing for centralized deduplication, backup policies, and dynamic scalability. Ideal for pre-cloud deployment. ✅ B . Containerized storage:
Incorrect. Containerized storage focuses on ephemeral data storage for containerized applications, not ideal for deduplication or backups. ❌ C . Thick-provisioning storage:
Incorrect. Thick provisioning allocates fixed storage size but lacks deduplication and backup management features. ❌ D . RAID 10 disk-array storage:
Incorrect. RAID 10 provides fault tolerance and performance but is hardware-centric and does not address deduplication or centralized backup management. ❌
3. Why SDS is Ideal:
SDS enables policy-driven management for backups, snapshots, and data deduplication.
Supports seamless integration with cloud environments, facilitating migration.
4. Reference:
CompTIA Cloud+ Objectives:
Section 3.2 - Provision storage in cloud environments, "Software-defined storage for deduplication and backups." CompTIA Cloud+ Study Guide: Discusses SDS for flexible and efficient storage management.
質問 # 59
If a firewall only allows TCP/UPD traffic from ports under 25 and above 162, which of the following would be used for alerting purposes?
- A. Syslog
- B. SMTP
- C. SNMP v1
- D. SNMP v3
正解：A
質問 # 60
A company has hired a security firm to perform a vulnerability assessment of its environment. In the first phase, an engineer needs to scan the network services exposed by the hosts. Which of the following will help achieve this with the LEAST privileges?
- A. An application scan
- B. A credentialed scan
- C. A network-based scan
- D. An agent-based scan
正解：C
解説：
Explanation
A network-based scan is a type of vulnerability assessment that scans the network services exposed by the hosts without requiring any credentials or agents. This type of scan will help achieve the objective of scanning the network services with the least privileges, as it does not need any access to the hosts or their internal configurations. A network-based scan can identify open ports, running services, and potential vulnerabilities on the hosts. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 2.0 Security, Objective 2.4 Given a scenario, implement security automation and orchestration in a cloud environment.
質問 # 61
A company would like to migrate its current on-premises workloads to the public cloud. The current platform requires at least 80 instances running at all times to work properly. The company wants the workload to be highly available, even if the cloud provider loses one region due to a catastrophe, and the costs to be kept to a minimum. Which of the following strategies should the company implement?
- A. Create /25 subnets in two regions and run 80 instances on each one.
- B. Create /26 subnets in three regions and run 40 instances on each one.
- C. Create /26 subnets in two regions and run 40 instances on each one.
- D. Create /26 subnets in three regions and run 80 instances on each one.
正解：C
解説：
Explanation
The best strategy to migrate the current on-premises workloads to the public cloud for the company that requires at least 80 instances running at all times and wants the workload to be highly available and cost-effective is to create /26 subnets in two regions and run 40 instances on each one. A /26 subnet can accommodate up to 62 hosts, which is enough for 40 instances. By creating subnets in two regions, the company can achieve high availability and redundancy in case one region fails due to a catastrophe. By running 40 instances on each subnet, the company can meet the minimum requirement of 80 instances and also save on costs by avoiding overprovisioning or underutilization of resources. Reference: What is VPN? How It Works, Types of VPN - Kaspersky
質問 # 62
The Chief Information Officer of a financial services company wants to ensure stringent security measures are maintained while migrating customer financial information from a private cloud to the public cloud. The cloud engineer must deploy automated validation and verification checks to prevent unauthorized disclosure of financial information. Which of the following should be configured during the migration?
- A. VPN
- B. VDI
- C. P2V
- D. ACL
正解：A
解説：
One possible answer is:
B) VPN
A VPN (Virtual Private Network) is a technology that creates a secure and encrypted connection between a remote device and a private network over the internet. A VPN can help prevent unauthorized disclosure of financial information during the migration from a private cloud to the public cloud, as it can protect the data in transit from interception, tampering, or leakage. A VPN can also help maintain compliance with data privacy regulations, such as GDPR or PCI DSS, by ensuring that the data is only accessible by authorized parties12.
ACL (Access Control List) is a method of controlling access to resources based on user or group permissions. ACL can help enforce security policies and restrict access to sensitive data, but it does not encrypt or protect the data in transit3.
P2V (Physical to Virtual) is a process of converting a physical machine into a virtual machine. P2V can help migrate workloads from on-premises servers to cloud servers, but it does not ensure the security of the data during the migration4.
VDI (Virtual Desktop Infrastructure) is a technology that provides users with virtual desktops hosted on a centralized server. VDI can help improve the performance, availability, and manageability of desktop environments, but it does not address the security of the data during the migration5.
質問 # 63
A systems administrator notices that a piece of networking equipment is about to reach its end of support.
Which of the following actions should the administrator recommend?
- A. Update the firmware
- B. Update the OS
- C. Replace the equipment
- D. Migrate the equipment to the cloud
正解：C
解説：
Replacing the equipment is the best action to take when a piece of networking equipment is about to reach its end of support. End of support means that the vendor or manufacturer will no longer provide technical assistance, updates, patches, or fixes for the equipment, which can affect its functionality, performance, security, and compatibility. Replacing the equipment with a newer model that has ongoing support can prevent any issues or risks associated with using outdated equipment. References: CompTIA Cloud+ Certification Exam Objectives, page 18, section 3.5
質問 # 64
A cloud administrator would like to deploy a cloud solution to its provider using automation techniques.
Which of the following must be used? (Choose two.)
- A. Templates
- B. Tagging
- C. Playbook
- D. Containers
- E. Auto-scaling
- F. Serverless
正解：A、C
解説：
Explanation
Playbook and templates are two things that must be used to deploy a cloud solution to its provider using automation techniques. A playbook is a file or script that defines a set of tasks or actions to be executed on one or more cloud resources or systems. A playbook can automate and standardize the deployment and configuration of cloud solutions using tools such as Ansible, Chef, Puppet, etc. A template is a preconfigured image or blueprint of a cloud resource or system that contains an OS, applications, settings, etc., that can be used to create new resources or systems quickly and consistently. A template can simplify and speed up the deployment of cloud solutions using tools such as AWS CloudFormation, Azure Resource Manager, Google Cloud Deployment Manager, etc.
質問 # 65
A cloud engineer needs to perform a database migration. The database has a restricted SLA and cannot be offline for more than ten minutes per month. The database stores 800GB of data, and the network bandwidth to the CSP is 100MBps Which of the following is the best option to perform the migration?
- A. Use the database import/export method and copy the exported file.
- B. Utilize a third-party tool to back up and restore the data to the new database.
- C. Copy the database to an external device and ship the device to the CSP.
- D. Create a replica database, synchronize the data, and switch to the new instance.
正解：D
解説：
The best option to perform the database migration is to create a replica database, synchronize the data, and switch to the new instance. This option can help meet the restricted SLA and avoid offline time for the database. Creating a replica database can help copy the data from the source to the destination without interrupting the database operations. Synchronizing the data can help ensure that the replica database is updated with any changes that occur in the source database during the migration process. Switching to the new instance can help complete the migration and activate the new database in the cloud. This option can also help avoid the network bandwidth limitation and the large size of the dat a. Reference: CompTIA Cloud+ CV0-003 Certification Study Guide, Chapter 7, Objective 7.1: Given a scenario, migrate applications and data to the cloud.
質問 # 66
Which of the following is a negative business impact of cloud computing?
- A. It is difficult to implement problem management.
- B. It is more difficult to ensure policy compliance.
- C. It slows down the company's ability to deal with server capacity issues.
- D. It lowers the company's overall application processing availability.
正解：B
質問 # 67
A cloud administrator created a developer desktop image and added it to the VDI farm in a private cloud environment. One of the developers opened a VDI session and noticed that compiling the code was taking up to one hour to complete. However, when the developer compiles the code on a local machine, the job completes in less than five minutes. Which of the following sizing techniques would be best to use to improve the performance of the compile job?
- A. Increase the CPU and the memory on the VDI template.
- B. Add more servers to the VDI environment.
- C. Configure the VDI environment to increase sessions automatically.
- D. Migrate code compile jobs to a public cloud provider.
正解：A
解説：
The most likely cause of the poor performance of the compile job is that the VDI template does not have enough CPU and memory resources to handle the task efficiently. Compiling code is a CPU-intensive and memory-intensive process that requires sufficient computing power to run smoothly. By increasing the CPU and memory on the VDI template, the cloud administrator can improve the performance of the compile job and reduce the time it takes to complete. Adding more servers to the VDI environment or configuring the VDI environment to increase sessions automatically would not help, as they would only affect the scalability and availability of the VDI farm, not the performance of individual sessions. Migrating code compile jobs to a public cloud provider would incur additional costs and complexity, and may not be feasible or desirable for the organization. References: The Official CompTIA Cloud+ Self-Paced Study Guide (CV0-003) eBook, Chapter 3, Section 3.3, page 971
質問 # 68
A systems administrator is building a new virtualization cluster. The cluster consists of five virtual hosts, which each have flash and spinning disks. This storage is shared among all the virtual hosts, where a virtual machine running on one host may store data on another host.
This is an example of:
- A. a storage area network
- B. thick-provisioned disks
- C. a network file system
- D. hyperconverged storage
正解：D
解説：
Explanation
Hyperconverged storage is a type of storage architecture that combines compute, storage, and network resources into a single system or appliance. Hyperconverged storage uses software-defined storage (SDS) to pool and share the local storage of each node in the cluster, creating a distributed storage system that can be accessed by any node or virtual machine in the cluster. Hyperconverged storage can provide high performance, scalability, and efficiency for virtualized environments. The scenario of building a new virtualization cluster with five virtual hosts that share their flash and spinning disks among all the virtual hosts is an example of hyperconverged storage. References: [CompTIA Cloud+ Certification Exam Objectives], page 9, section 1.4
質問 # 69
The security team for a large corporation is investigating a data breach. The team members are all trying to do the same tasks but are interfering with each other's work.
Which of the following did the team MOST likely forget to implement?
- A. Change management
- B. Roles and responsibilities
- C. Incident type categories
- D. A calling tree
正解：B
解説：
Explanation
Roles and responsibilities are definitions or descriptions of what each team member or stakeholder is expected to do or perform in a project or process. Roles and responsibilities can help clarify the scope, authority, and accountability of each team member or stakeholder and avoid any confusion or duplication of work. The security team most likely forgot to implement roles and responsibilities when investigating a data breach, as they are all trying to do the same tasks but are interfering with each other's work. Implementing roles and responsibilities can help improve efficiency and effectiveness, as it can ensure that each team member or stakeholder knows what tasks they need to do and how they need to coordinate with others.
References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5
質問 # 70
A systems administrator is troubleshooting issues with network slowness. Traffic analysis shows that uplink bandwidth on the core switch is often sustained at 125Mbps due to a combination of production traffic from other sources. Which of the following would BEST resolve the issue?
- A. Reboot the core switch.
- B. Enable QoS to prioritize production traffic.
- C. Increase the buffer size on the core switch.
- D. Turn off the servers that use the most bandwidth.
正解：B
質問 # 71
An administrator needs to build a VM for a legacy, single-threaded application. According to best practice, how many virtual CPUs should the administrator use?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 72
A company is switching from one cloud provider to another and needs to complete the migration as quickly as possible.
Which of the following is the MOST important consideration to ensure a seamless migration?
- A. Network utilization
- B. The cost of the environment
- C. The I/O of the storage
- D. Feature compatibility
正解：A
質問 # 73
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