最新のCV0-003試験のリアル試験問題 本日無料更新されました
CV0-003リアル試験問題解答は更新された[2025年02月07日]
質問 # 152
A physical server with SSD drives that hosts an IO-intensive database has been migrated into a private cloud to ensure further growth possibilities and accommodate quarterly load spikes (up to
10,000 IOPs). The requirement is to have log partition latency below 5ms and data partition latency below 10ms, irrespective of the load spikes. A cloud administrator has conducted extensive tests after the migration. Which of the following test results would ensure the migration is successful?
- A.
- B.
- C.
- D.
正解：C
質問 # 153
A file server is being migrated from physical hardware into a private cloud. Baselining of the server shows the disks average 90% full at all times. The contents of the file server consist mostly of compressed audio files. Multiple copies of the same files are often saved in different locations on the same disk. Which of the following storage technologies is MOST likely to help minimize storage utilization when moving this server to the private cloud?
- A. Deduplication
- B. Tokenization
- C. Compression
- D. Thin provisioning
正解：A
質問 # 154
A systems administrator recently upgraded the processors in a web application host. Upon the next login, the administrator sees a new alert regarding the license being out of compliance.
Which of the following licensing models is the application MOST likely using?
- A. Per device
- B. Volume-based
- C. Core-based
- D. Per user
正解：C
解説：
Core-based licensing is a type of licensing model that charges based on the number of processor cores in a system or server. Core-based licensing is often used by software vendors to align their pricing with the performance and capacity of modern hardware. Core-based licensing can also enable customers to optimize their licensing costs by choosing the appropriate hardware configuration for their needs. Upgrading the processors in a web application host can affect the core-based licensing of the application, as it may increase the number of cores that need to be licensed. This can result in an alert regarding the license being out of compliance if the license is not updated accordingly. Reference: CompTIA Cloud+ Certification Exam Objectives, page 20, section 4.2
質問 # 155
A systems administrator for an e-commerce company will be migrating the company's main website to a cloud provider. The principal requirement is that the website must be highly available.
Which of the following will BEST address this requirement?
- A. Vertical scaling
- B. Redundant switches
- C. A server cluster
- D. A next-generation firewall
正解：C
解説：
A server cluster is a group of servers that work together to provide high availability, load balancing, and scalability for applications or services. A server cluster can help ensure the high availability requirement for migrating an e-commerce company's main website to a cloud provider, as it can prevent downtime or disruption in case of a server failure or outage by automatically switching the workload to another server in the cluster. A server cluster can also improve performance and reliability, as it can distribute the workload across multiple servers and handle increased traffic or demand. Reference: CompTIA Cloud+ Certification Exam Objectives, page 10, section 1.5
質問 # 156
A systems administrator is responding to an outage in a cloud environment that was caused by a network-based flooding attack. Which of the following should the administrator configure to mitigate the attack?
- A. DoH
- B. DDoS protection
- C. Network overlay using GENEVE
- D. NIPS
正解：B
解説：
DDoS protection is what the administrator should configure to mitigate a network-based flooding attack that caused an outage in a cloud environment. A network-based flooding attack is a type of attack that sends a large amount of network traffic or requests to a target system or service, such as a server, website, application, etc., with the intention of overwhelming or exhausting its resources or capacity. A network-based flooding attack can cause an outage in a cloud environment by disrupting or degrading the availability or performance of the target system or service, as well as affecting other systems or services that share the same network or infrastructure. DDoS protection is a tool or service that detects and prevents network-based flooding attacks, also known as Distributed Denial of Service (DDoS) attacks. DDoS protection can mitigate a network-based flooding attack by providing features such as:
* Filtering: DDoS protection can filter network traffic or requests based on various criteria, such as source, destination, protocol, content, etc., and block or allow them accordingly.
* Diverting: DDoS protection can divert network traffic or requests away from the target system or service
* to another location or device, such as a scrubbing center, proxy, firewall, etc., where they can be analyzed and processed.
* Scaling: DDoS protection can scale network resources or capacity dynamically and automatically to handle the increased demand or load caused by the network-based flooding attack.
質問 # 157
Which of the following generally has better performance when accessing larger databases?
- A. SAN
- B. CIFS
- C. NAS
- D. NFS
正解：A
質問 # 158
A cloud engineer, who manages workloads in a public cloud environment, uses autoscaling to maintain availability of a critical application. During a recent burst in demands, the engineer received the following error alert:
LimitedlnstanceCapacity
Which of the following is MOST likely cause of the error?
- A. The autoscaling feature does not have permissions to create instances.
- B. The cloud account has exhausted the number of instances quota.
- C. The cloud account has a misconfigured security group.
- D. The cloud account has had rights revoked to create instances.
正解：B
解説：
A quota is a limit on the number of resources that a cloud account can create or use in a public cloud environment. If the cloud account tries to create more instances than the quota allows, it will receive a LimitedInstanceCapacity error, indicating that there is not enough available capacity to fulfill the request
質問 # 159
A Chief Information Security Officer (CISO) is evaluating the company's security management program. The CISO needs to locate all the assets with identified deviations and mitigation measures. Which of the following would help the CISO with these requirements?
- A. SOC procedures
- B. An SLA document
- C. A risk register
- D. ADR plan
正解：C
解説：
A risk register is a document that records all the identified risks, their causes, impacts, probabilities, mitigation measures, and status for a project or an organization. A risk register helps to manage and monitor risks throughout their lifecycle and ensure they are addressed appropriately. A risk register would help the CISO to locate all the assets with identified deviations and mitigation measures.
質問 # 160
A web consultancy group currently works in an isolated development environment. The group uses this environment for the creation of the final solution, but also for showcasing it to customers, before commissioning the sites in production. Recently, customers of newly commissioned sites have reported they are not receiving the final product shown by the group, and the website is performing in unexpected ways. Which of the following additional environments should the group adopt and include in its process?
- A. Initiate a disaster recovery environment to fail to in the event of reported issues.
- B. Provide each web consultant a local environment on their device.
- C. Leverage a staging environment that is tightly controlled for showcasing
- D. Require each customer to have a blue-green environment.
正解：C
解説：
The answer is C. Leverage a staging environment that is tightly controlled for showcasing. A staging environment is a replica of the production environment that is used for testing and demonstrating the final product before deployment. A staging environment can help the web consultancy group avoid the issues reported by the customers, such as mismatched expectations and unexpected behavior, by ensuring that the product is shown in a realistic and consistent setting. A staging environment can also help the group catch and fix any bugs or errors before they affect the live site.
Some possible sources of information about web development environments are:
7 Web Development Best Practices: This page provides some general tips and best practices for web development, such as planning, accessibility, UX/UI, standards, code quality, compatibility, and security.
Web Development Best Practices (Building Real-World Cloud Apps with Azure): This page explains some specific best practices for web development in the cloud environment, such as stateless web tier, session state management, CDN caching, and async programming.
Web Development Best Practices: This page lists some resources for learning web development best practices in ASP.NET, such as async and await, building real-world cloud apps with Azure, and hands-on labs.
質問 # 161
A cloud administrator needs to implement a new system within the current CSR The system requires a storage service to allocate a large number of digital files and images. The storage service must keep files for distributed access and serve images directly to the user's browser. Which of the following solutions would best meet these requirements?
- A. Object storage
- B. File storage
- C. NAS storage
- D. Block storage
正解：A
解説：
One possible solution for the cloud administrator is to use object storage. Object storage is a type of cloud storage service that stores data as objects, which consist of data, metadata, and a unique identifier. Object storage can allocate a large number of digital files and images, as it can scale to petabytes of capacity and handle billions of objects. Object storage can also keep files for distributed access, as it can store data across multiple regions and zones, and provide high availability and durability. Object storage can also serve images directly to the user's browser, as it can generate public URLs for each object that can be accessed over the internet12.
NAS storage, file storage, and block storage are not the best solutions for these requirements, as they have some limitations compared to object storage. NAS storage and file storage store data as files in a hierarchical structure, which can be inefficient for managing a large number of files and images. Block storage stores data as blocks in a fixed structure, which can be wasteful for storing variable-sized files and images. NAS storage, file storage, and block storage also require a file system or a protocol to access the data, which can add complexity and overhead to the system12.
質問 # 162
A technician just received the lessons learned from some recent data that was lost due to an on-premises file-server crash. The action point is to change the backup strategy to minimize manual intervention. Which of the following is the BEST approach for the technician to implement?
- A. RAID 1
- B. New backup devices
- C. Long-term storage
- D. Backup as a service
正解：D
解説：
Backup as a service (BaaS) is the best approach for changing the backup strategy to minimize manual intervention after a data loss due to an on-premises file-server crash. BaaS is a cloud-based service that provides backup and recovery solutions for customers' data and systems. BaaS can automate and simplify backup processes by using cloud storage, encryption, deduplication, compression, scheduling, etc., without requiring customers to purchase or maintain backup hardware or software.
質問 # 163
Which of the following should be enabled to reduce cloud compute costs when planning hardware capacity?
- A. Affinity settings per node.
- B. Lifecycle management on the data storage.
- C. Compression and deduplication on the object storage.
- D. Autoscaling with load balancing.
正解：D
解説：
Detailed
B . Autoscaling with load balancing: Autoscaling adjusts resources based on demand, ensuring that unused compute capacity is released, reducing costs. Load balancing distributes traffic, preventing resource overuse.
References:
CompTIA Cloud+ CV0-003 Study Guide Chapter 18: Optimizing Cloud Environments.
質問 # 164
Which of the following strategies will mitigate the risk of a zero-day vulnerability MOST efficiently?
- A. Creating a standby environment with a different cloud provider
- B. Having a detailed incident response plan
- C. Keeping all resources up to date
- D. Using only open-source technologies
正解：B
解説：
Explanation
An incident response plan is a document or procedure that defines the roles, responsibilities, and actions to be taken in the event of a security incident or breach. Having a detailed incident response plan can help mitigate the risk of a zero-day vulnerability most efficiently, as it can provide a clear and consistent framework for identifying, containing, analyzing, and resolving any potential threats or exploits related to the unknown or unpatched vulnerability. Having a detailed incident response plan can also help minimize the impact and damage of a security incident or breach, as it can enable timely and effective recovery and restoration processes. References: CompTIA Cloud+ Certification Exam Objectives, page 14, section 2.7
質問 # 165
A company is required to ensure all access to its cloud instance for all users to utilize two-factor authentication. The QA team confirms all functional requirements successfully test. After deployment, all business users report the two-factor authentication is not enforced while accessing the instance. Which of the following would be the MOST likely reason the QA team did not catch the issue?
- A. The administrator configured to use two-factor authentication by default.
- B. The business users are using the wrong hardware token to log in.
- C. The QA team only tested functional requirements.
- D. The business users are accessing the instance located in their country.
正解：C
質問 # 166
A systems administrator audits a cloud application and discovers one of the key regulatory requirements has not been addressed. The requirement states that if a physical breach occurs and hard drives are stolen, the contents of the drives should not be readable. Which of the following should be used to address the requirement?
- A. HIPS
- B. Encryption
- C. EDR
- D. Obfuscation
正解：B
解説：
Explanation
Encryption is the process of transforming data into an unreadable format using a secret key or algorithm.
Encryption can be used to protect data at rest or in transit from unauthorized access or theft. If a physical breach occurs and hard drives are stolen, encryption can prevent the contents of the drives from being readable by anyone who does not have the decryption key or algorithm.
References: [CompTIA Cloud+ Study Guide], page 236.
質問 # 167
A company developed a product using a cloud provider's PaaS platform and many of the platform-based components within the application environment.
Which of the following would the company MOST likely be concerned about when utilizing a multicloud strategy or migrating to another cloud provider?
- A. Licensing
- B. Service-level agreement
- C. Vendor lock-in
- D. Authentication providers
正解：C
解説：
Explanation
Vendor lock-in is a situation where a customer becomes dependent on a specific vendor for products or services and faces high switching costs or barriers when trying to change vendors. Vendor lock-in is most likely to be a concern for a company that developed a product using a cloud provider's PaaS platform and many of the platform-based components within the application environment when utilizing a multicloud strategy or migrating to another cloud provider, as it can limit the flexibility, scalability, and portability of the product and increase the complexity, risk, and cost of moving or integrating with other cloud platforms or providers. References: CompTIA Cloud+ Certification Exam Objectives, page 8, section 1.2
質問 # 168
A systems administrator is deploying a solution that includes multiple network I/O-intensive VMs. The solution design requires that vNICs of the VMs provide low-latency, near-native performance of a physical NIC and data protection between the VMs. Which of the following would BEST satisfy these requirements?
- A. GENEVE
- B. SDN
- C. VLAN
- D. SR-IOV
正解：D
解説：
Explanation
SR-IOV (Single Root Input/Output Virtualization) is what would best satisfy the requirements of low-latency, near-native performance of a physical NIC and data protection between VMs for multiple network I/O-intensive VMs. SR-IOV is a technology that allows a physical NIC to be partitioned into multiple virtual NICs that can be assigned to different VMs. SR-IOV can provide the following benefits:
Low-latency: SR-IOV can reduce latency by bypassing the hypervisor and allowing direct communication between the VMs and the physical NIC, without any overhead or interference.
Near-native performance: SR-IOV can provide near-native performance by allowing the VMs to use the full capacity and functionality of the physical NIC, without any emulation or translation.
Data protection: SR-IOV can provide data protection by isolating and securing the network traffic between the VMs and the physical NIC, without any exposure or leakage.
質問 # 169
Which of the following provides the BEST approach for deploying multiple new firewalls into an IaaS cloud environment with minimal errors?
- A. Manual deployment configuration
- B. Automated and orchestrated deployment
- C. Cloud provider installation
- D. Firewall configuration clone
正解：B
質問 # 170
Company A has acquired Company B and is in the process of integrating their cloud resources.
Company B needs access to Company A's cloud resources while retaining its IAM solution.
Which of the following should be implemented?
- A. Directory service
- B. Single sign-on
- C. Multifactor authentication
- D. Identity federation
正解：D
解説：
https://medium.com/@dinika.15/identity-federation-a-brief-introduction-f2f823f8795a
質問 # 171
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. There was federation and SSO misconfiguration
- B. All of the CASB's European datacenters are down
- C. The CASB's SSL/TLS certificate expired
- D. Additional CASB IP addresses were added to the authorized pool
正解：C
質問 # 172
While investigating network traffic, a cloud administrator discovers the monthly billing has increased substantially. Upon further review, it appears the servers have been compromised, and sensitive files have been exfiltrated. Which of the following can be implemented to maintain data confidentiality?
- A. IPSec
- B. IAM
- C. Encryption
- D. Hardening
正解：C
解説：
The best method to maintain data confidentiality after discovering that the servers have been compromised and sensitive files have been exfiltrated is encryption. Encryption is a process that transforms data into an unreadable format using an algorithm and a key. Encryption can protect data at rest, in transit, or in use from unauthorized access, tampering, or leakage. The systems administrator should encrypt the sensitive files and their backups using strong encryption algorithms and keys, and also encrypt the network traffic using protocols such as SSL or IPSec. 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 # 173
A cloud administrator is reviewing the authentication and authorization mechanism implemented within the cloud environment. Upon review, the administrator discovers the sales group is part of the finance group, and the sales team members can access the financial application. Single sign-on is also implemented, which makes access much easier.
Which of the following access control rules should be changed?
- A. Mandatory-based
- B. Attribute-based
- C. Discretionary-based
- D. Role-based
正解：D
解説：
Reference:
https://www.ekransystem.com/en/blog/rbac-vs-abac
質問 # 174
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. Increase the buffer size on the core switch.
- B. Enable QoS to prioritize production traffic.
- C. Turn off the servers that use the most bandwidth.
- D. Reboot the core switch.
正解：B
解説：
The best solution to resolve the issue of network slowness caused by high uplink bandwidth utilization on the core switch is to enable quality of service (QoS) to prioritize production traffic over other types of traffic. QoS is a mechanism that allows network administrators to classify and manage network traffic according to its importance, latency, bandwidth, and reliability requirements. By enabling QoS, the core switch can allocate more resources and guarantee better performance for production traffic, while limiting or dropping less critical traffic. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 4.0 Troubleshooting, Objective
4.1 Given a scenario, troubleshoot connectivity issues related to cloud implementations.
質問 # 175
A company has moved all on-premises workloads into a public cloud. After some time, the cloud engineer starts noticing time drifts on the VMs and suspects an NTP issue. Time drifts were not an issue when all the workloads were on-premises. Which of the following describes how the cloud engineer should resolve the issue?
- A. Point all workloads to a stratum 2 within the public cloud provider
- B. Point all workloads back to an on-premises NTP server
- C. Implement Coordinated Universal Time on all workloads
- D. Configure all of the VMs as NTP servers within the public cloud provider
正解：C
質問 # 176
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