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可靠的CV0-003熱門題庫|高通過率的考試材料|高品質的CV0-003證照
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高質量的CV0-003熱門題庫 |第一次嘗試輕鬆學習並通過考試&可靠的CV0-003：CompTIA Cloud+ Certification Exam
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最新的 CompTIA Cloud+ CV0-003 免費考試真題 (Q90-Q95):
問題 #90
A local bank has all of its infrastructure in the cloud. An update was applied to the main database server at
5:00 a.m. on Monday morning, and the database was then corrupted and unusable. It had to be restored from backup. The last backup was taken the night before at 10:00 p.m. The database was then restored successfully, but seven hours' worth of data was lost, which is deemed unacceptable. Which of the following needs to be updated in the DR plan?
- A. Recovery time objective
- B. Recovery point objective
- C. Service-level agreement
- D. Statement of work
答案：B
解題說明：
The recovery point objective (RPO) is a metric that defines the maximum amount of data that can be lost or acceptable data loss in the event of a disaster or disruption. The RPO determines how frequently the backups should be performed and how far back in time the recovery should go. In this case, the RPO needs to be updated in the DR plan, as seven hours' worth of data loss is deemed unacceptable. The RPO should be reduced to a lower value, such as one hour or less, to minimize the data loss and meet the business requirements. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 3.0 Maintenance, Objective 3.2 Given a scenario, implement backup, restore, disaster recovery and business continuity measures.
問題 #91
A VDI provider suspects users are installing prohibited software on the instances. Which of the following must be implemented to prevent the issue?
- A. System hardening
- B. Log monitoring
- C. Patch management
- D. Vulnerability scanning
答案：A
解題說明：
Explanation
System hardening. System hardening is the process of securing a system by reducing its surface of vulnerability, which is larger when a system performs more functions. In contrast to system hardening, which is performed once, patch management, vulnerability scanning, and log monitoring are ongoing processes. By hardening the VDI instances, the provider can prevent users from installing prohibited software or making unauthorized changes to the system configuration. This can be done by applying security policies, disabling unnecessary services, removing default accounts, and enforcing strong passwords. For more information on system hardening, you can refer to the CompTIA Cloud+ CV0-003 Certification Study Guide1 or the CompTIA Cloud+ (Plus) Certification website2.
問題 #92
An organization's web server farm, which is hosted in the cloud with DNS load balancing, is experiencing a spike in network traffic. This has caused an outage of the organization's web server infrastructure.
Which of the following should be implemented to prevent this in the future as a mitigation method?
- A. Enable DNSSEC
- B. Deploy a vADC appliance
- C. Enable DLP
- D. Configure microsegmentation
答案：B
解題說明：
Explanation
A virtual application delivery controller (vADC) is a type of network device or software that provides load balancing, security, and optimization for web applications or services. Deploying a vADC appliance can help prevent an outage of the organization's web server infrastructure due to a spike in network traffic, as it can distribute the traffic across multiple web servers and improve the performance and availability of web applications or services. Deploying a vADC appliance can also provide mitigation methods such as DDoS protection, SSL offloading, and caching to enhance the security and efficiency of web traffic delivery.
References: CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8
問題 #93
An organization has a web-server farm. Which of the following solutions should be implemented to obtain efficient distribution of requests to theservers?
- A. A containerized application
- B. A load-balancing appliance
- C. Distribution of web servers across different regions and zones
- D. A clustered web server infrastructure
答案：B
解題說明：
Explanation
A web-server farm is a group of web servers that work together to provide high availability and scalability for web applications1. A web-server farm can handle a large number of requests from clients by distributing the workload among the servers.
A load-balancing appliance is a device that sits between the clients and the web servers and distributes the incoming requests to the servers based on a predefined algorithm2. A load-balancing appliance can improve the performance, reliability, and security of a web-server farm by providing the following benefits2:
Load balancing: It ensures that no single server is overloaded and that all servers are utilized efficiently.
Failover: It detects and redirects requests from failed or unavailable servers to healthy ones.
Health monitoring: It periodically checks the status and performance of the servers and reports any issues or anomalies.
SSL offloading: It terminates the SSL connections from the clients and forwards the requests to the servers in plain text, reducing the encryption overhead on the servers.
Caching: It stores frequently requested content in its memory and serves it to the clients, reducing the network traffic and load on the servers.
A clustered web server infrastructure is a configuration where multiple web servers are connected to a shared storage device and appear as a single logical server to the clients3. A clustered web server infrastructure can provide high availability and fault tolerance for web applications, but it does not provide load balancing or scalability. Therefore, option A is incorrect.
A containerized application is an application that is packaged with its dependencies and runtime environment in a lightweight and portable unit called a container. A containerized application can run on any platform that supports container technology, such as Docker or Kubernetes. A containerized application can provide portability, consistency, and isolation for web applications, but it does not provide load balancing or scalability by itself. Therefore, option C is incorrect.
Distribution of web servers across different regions and zones is a strategy that involves deploying web servers in multiple geographic locations to serve clients from different areas. Distribution of web servers across different regions and zones can provide low latency, high availability, and disaster recovery for web applications, but it does not provide load balancing or scalability within each region or zone. Therefore, option D is incorrect.
問題 #94
A systems administrator is using VMs to deploy a new solution that contains a number of application VMs.
Which of the following would provide high availability to the application environment in case of hypervisor failure?
- A. Cold migration
- B. Anti-affinity rules
- C. Affinity rules
- D. Live migration
答案：B
解題說明：
Anti-affinity rules are rules or policies that prevent two or more VMs from running on the same host or cluster in a cloud environment. Anti-affinity rules can provide high availability to an application environment in case of hypervisor failure, as they can distribute or separate the application VMs across different hosts or clusters and avoid having a single point of failure. Anti-affinity rules can also improve performance and reliability, as they can reduce contention and load by balancing the resource utilization across multiple hosts or clusters. Reference: CompTIA Cloud+ Certification Exam Objectives, page 10, section 1.5
問題 #95
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