完全版CV0-003練習テスト376特別な問題と解答が待ってます！
CompTIA Cloud+問題集でCV0-003試験完全版問題で試験学習ガイド
質問 # 122
A systems administrator needs to configure SSO authentication in a hybrid cloud environment.
Which of the following is the BEST technique to use?
- A. Federation
- B. Certificate authentication
- C. Access controls
- D. Multifactor authentication
正解：D
解説：
Reference:
https://techbeacon.com/security/how-get-single-sign-right-todays-hybrid-it-environments
質問 # 123
A company just successfully completed a DR test and is ready to shut down its DR site and resume normal operations.
Which of the following actions should the cloud administrator take FIRST?
- A. Restore backups
- B. Perform a failback
- C. Initiate a failover
- D. Configure the network
正解：B
解説：
Explanation
A failback is a process of restoring or returning a system or service to its original state or location after a failure or disaster recovery event. Performing a failback is the first action that a cloud administrator should take after successfully completing a DR test and being ready to shut down its DR site and resume normal operations, as it can ensure that all data and configurations are synchronized and consistent between the primary site and the DR site before switching back to the primary site. Performing a failback can also help minimize downtime or disruption, as it can verify that all systems or services are functioning properly before resuming normal operations. References: CompTIA Cloud+ Certification Exam Objectives, page 10, section
1.5
質問 # 124
A cloud administrator is evaluating a solution that will limit access to authorized individuals. The solution also needs to ensure the system that connects to the environment meets patching, antivirus, and configuration requirements. Which of the following technologies would BEST meet these requirements?
- A. EDR
- B. HIPS
- C. IDS
- D. NAC
正解：D
解説：
NAC (Network Access Control) is a technology that will limit access to authorized individuals and ensure the system that connects to the environment meets patching, antivirus, and configuration requirements. NAC can enforce policies and rules that define who, what, when, where, and how a device or a user can access a network or a cloud environment. NAC can also inspect and evaluate the security posture and compliance status of a device or a user before granting or denying access. For example, NAC can check if the device has the latest patches, antivirus software, and configuration settings, and if not, it can quarantine, remediate, or reject the device. NAC can also monitor and audit the ongoing network activity and behavior of the devices and users, and take actions if any violations or anomalies are detected.
質問 # 125
A cloud administrator is building a new VM for machine-learning training. The developer requesting the VM has stated that the machine will need a full GPU dedicated to it.
Which of the following configuration options would BEST meet this requirement?
- A. Shared GPU
- B. External GPU
- C. Virtual GPU
- D. Passthrough GPU
正解：D
質問 # 126
A law firm wants to limit log retention to the minimum required by law and regulation. Which of the following is the engineer most likely to do FIRST?
- A. Configure all systems in scope to log activities in support of company policies.
- B. Create a 2GB external hard drive to log all activities.
- C. Configure a daily rotation on all workstations to limit the logs' discovery scope.
- D. Deduplicate, compress, and encrypt all logs before archiving them.
正解：A
質問 # 127
An administrator is attempting to troubleshoot an issue between a web server in the DMZ and an internal workstation by reviewing packet captures. Upon inspection, the payloads of the packets are unreadable. Which of the following could be the cause of this issue?
- A. A vulnerability scanner has interfered with the packet capture
- B. The administrator has yet to authenticate to the network
- C. The sniffer is located on an incorrect subnet
- D. End-to-end encryption is applied on the network
正解：B
質問 # 128
A vendor is installing a new retail store management application for a customer. The application license ensures software costs are low when the application is not being used, but costs go up when use is higher.
Which of the following licensing models is MOST likely being used?
- A. Subscription
- B. Volume-based
- C. Core-based
- D. Socket-based
正解：B
解説：
Volume-based licensing is a pricing model that charges the customers based on the amount of usage or consumption of a software product or service. The more the customers use the software, the higher the costs will be. This model is suitable for applications that have variable or seasonal demand patterns. Examples of volume-based licensing are AWS Lambda, Azure Functions, Google Cloud Run, etc.
質問 # 129
A startup online gaming company is designing the optimal graphical user experience for multiplayer scenarios. However, online players have reported latency issues. Which of the following should the company configure as a remediation?
- A. Additional GPU memory
- B. Faster clock speed
- C. Dynamic allocations
- D. Additional CPU cores
正解：B
解説：
The best option to improve the graphical user experience for multiplayer scenarios for an online gaming company is to use faster clock speed for the CPU or GPU. The clock speed is a measure of how fast a CPU or GPU can process instructions per second. A faster clock speed can enhance the performance and quality of graphics by rendering more frames per second, reducing latency, and increasing resolution. Reference: [CompTIA Cloud+ Certification Exam Objectives], Domain 3.0 Maintenance, Objective 3.3 Given a scenario, analyze system performance using standard tools.
質問 # 130
A systems administrator is informed that a database server containing PHI and PII is unencrypted. The environment does not support VM encryption, nor does it have a key management system. The server needs to be able to be rebooted for patching without manual intervention.
Which of the following will BEST resolve this issue?
- A. Enable volume encryption on the storage
- B. Create an IPSec tunnel between the database server and its clients
- C. Enable OS encryption
- D. Enable protocol encryption between the storage and the hypervisor
- E. Ensure all database queries are encrypted
正解：D
質問 # 131
A host with 30 VMs has 64GB of RAM, four quad-core CPUs, four 1-gigabit NICs and is connected to a NAS that provides NFS volumes. The hosted VMs are reporting slow performance. From the information given, which of the following is the MOST likely cause of the slow performance?
- A. The server is using 110V instead of 220V
- B. Insufficient network capacity
- C. Insufficient NAS capacity
- D. One hard drive has failed in the RAID 5
正解：B
質問 # 132
A cloud solutions architect has received guidance to migrate an application from on premises to a public cloud. Which of the following requirements will help predict the operational expenditures in the cloud?
- A. Maximum resource consumption
- B. Actual hardware configuration
- C. Average resource consumption
- D. Minimum resource consumption
正解：A
質問 # 133
A company wants to check its infrastructure and application for security issues regularly. Which of the following should the company implement?
- A. Regression testing
- B. Vulnerability testing
- C. Penetration testing
- D. Performance testing
正解：B
質問 # 134
Which of the following organizations are MOST liking to consider confidentiality requirements before implementing a backup and disaster recovery cloud solution?
- A. A hospital and outpatient facility
- B. A recreational part district
- C. A public library
- D. An advertising company
正解：A
質問 # 135
A company is considering consolidating a number of physical machines into a virtual infrastructure that will be located at its main office. The company has the following requirements:
High-performance VMs
More secure
Has system independence
Which of the following is the BEST platform for the company to use?
- A. Remote dedicated hosting
- B. Software application virtualization
- C. Type 2 hypervisor
- D. Type 1 hypervisor
正解：D
解説：
A type 1 hypervisor is what would best meet the requirements of high-performance VMs (Virtual Machines), more secure, and has system independence for a company that wants to move its environment from on premises to the cloud without vendor lock-in. A hypervisor is a software or hardware that allows multiple VMs to run on a single physical host or server. A hypervisor can be classified into two types:
Type 1 hypervisor: This is a hypervisor that runs directly on the hardware or bare metal of the host or server, without any underlying OS (Operating System). A type 1 hypervisor can provide benefits such as:
High-performance: A type 1 hypervisor can provide high-performance by eliminating any overhead or interference from an OS, and allowing direct access and control of the hardware resources by the VMs.
More secure: A type 1 hypervisor can provide more security by reducing the attack surface or exposure of the host or server, and isolating and protecting the VMs from each other and from the hardware.
System independence: A type 1 hypervisor can provide system independence by allowing different types of OSs to run on the VMs, regardless of the hardware or vendor of the host or server.
Type 2 hypervisor: This is a hypervisor that runs on top of an OS of the host or server, as a software application or program. A type 2 hypervisor can provide benefits such as:
Ease of installation and use: A type 2 hypervisor can be easily installed and used as a software application or program on an existing OS, without requiring any changes or modifications to the hardware or configuration of the host or server.
Compatibility and portability: A type 2 hypervisor can be compatible and portable with different types of hardware or devices that support the OS of the host or server, such as laptops, desktops, smartphones, etc.
質問 # 136
Which of the following definitions of serverless computing BEST explains how it is different from using VMs?
- A. Serverless computing is a scalable, highly available cloud service that uses SDN technologies.
- B. Serverless computing allows developers to focus on writing code and organizations to focus on business.
- C. Serverless computing uses predictable billing and offers lower costs than VM compute services.
- D. Serverless computing is a cloud-hosting service that utilizes infrastructure that is fully managed by the CSP.
正解：B
解説：
This is the best definition of serverless computing that explains how it is different from using VMs (Virtual Machines). Serverless computing is a cloud service model that provides customers with a platform to run applications or functions without having to manage or provision any underlying infrastructure or resources, such as servers, storage, network, OS, etc. Serverless computing is different from using VMs in the following ways:
Serverless computing allows developers to focus on writing code and organizations to focus on business, rather than spending time and effort on managing or scaling VMs or other infrastructure components.
Serverless computing is event-driven and pay-per-use, which means that applications or functions are executed only when triggered by a specific event or request, and customers are charged only for the resources consumed during the execution time.
Serverless computing is more scalable and flexible than using VMs, as it can automatically adjust the capacity and performance of applications or functions according to demand or workload, without requiring any manual intervention or configuration.
質問 # 137
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. Additional CASB IP addresses were added to the authorized pool
- B. The CASB's SSL/TLS certificate expired
- C. All of the CASB's European datacenters are down
- D. There was federation and SSO misconfiguration
正解：B
質問 # 138
A company wants to ensure production data is not exposed during a functional and load testing exercise, as it will be the source of the data.
Which of the following techniques should the cloud administrator deploy to ensure testing requirements are met?
- A. Data Deduplication
- B. Data Mirroring
- C. Data replication
- D. Data masking
正解：D
質問 # 139
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. NETSTAT -A
- B. ROUTE PRINT
- C. IPCONFIG /ALL
- D. NET SM
正解：B
解説：
Explanation
ROUTE PRINT is a command that displays the routing table of a system, which shows the destination network, the gateway, the interface, and the metric for each route. ROUTE PRINT can help identify the issue of the weekly backup failing for this server, as it can show if there is a valid route to the network backup segment (10.20.0.0/25) from the production traffic segment (10.10.0.0/24). If there is no route or an incorrect route, the backup will fail to reach the destination. The administrator can use ROUTE PRINT to verify and troubleshoot the routing configuration of the server. References: CompTIA Cloud+ Certification Exam Objectives, page 16, section 3.2
質問 # 140
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