CompTIA CompTIA Certifications CV0-003 Questions & Answers

• Question 301:

  Users are experiencing slow response times from an intranet website that is hosted on a cloud platform. There is a site-to-site VPN connection to the cloud provider over a link of 100Mbps. Which of the following solutions will resolve the issue the FASTEST?

  A. Change the connection to point-to-site VPN

  B. Order a direct link to the provider

  C. Enable quality of service

  D. Upgrade the link to 200Mbps

  Correct Answer: C

  The fastest solution to the slow response times from the intranet website hosted on a cloud platform would be to enable quality of service (QoS). QoS allows network traffic to be prioritized to ensure that important traffic, such as the intranet website traffic, is given priority over less important traffic. This can improve response times and ensure that users can access the intranet website quickly, even when other network traffic is present. Changing the connection to point-to-site VPN, ordering a direct link to the provider, or upgrading the link to 200Mbps may also help to improve response times, but they would likely take longer to implement and may involve additional costs.

• Question 302:

  A cloud administrator has deployed a new VM. The VM cannot access the Internet or the VMs on any other subnet. The administrator runs a network command and sees the following output:

  

  The new VM can access another VM at 172.16.31.39. The administrator has verified the IP address is correct. Which of the following is the MOST likely cause of the connectivity issue?

  A. A missing static route

  B. A duplicate IP on the network

  C. Firewall issues

  D. The wrong gateway

  Correct Answer: D

  The wrong gateway is the most likely cause of the connectivity issue for the new VM that cannot access the Internet or the VMs on any other subnet. A gateway is a device or software that connects two or more networks and routes traffic between them. A gateway is usually configured as the default route for a network device, which means that any traffic that is not destined for the local network will be sent to the gateway. If the gateway is configured incorrectly, the network device will not be able to communicate with other networks or the Internet. In this case, the new VM has an IP address of 172.16.31.40/24, which means that its subnet mask is 255.255.255.0 and its network ID is 172.16.31.0. However, its gateway is configured as 172.16.30.1, which belongs to a different network (172.16.30.0/24). This means that the new VM will not be able to reach its gateway or any other network through it. The administrator should change the gateway to an IP address that belongs to the same network as the new VM, such as 172.16.31.1 or 172.16.31.254.

• Question 303:

  A systems administrator is creating a VM and wants to ensure disk space is not allocated to the VM until it is needed. Which of the following techniques should the administrator use to ensure?

  A. Deduplication

  B. Thin provisioning

  C. Software-defined storage

  D. iSCSI storage

  Correct Answer: B

  Thin provisioning is the technique that ensures disk space is not allocated to the VM until it is needed. Thin provisioning is a storage allocation method that assigns disk space to a VM on demand, rather than in advance. Thin provisioning can improve storage utilization and efficiency by avoiding overprovisioning and wasting disk space. Thin provisioning can also allow for more flexibility and scalability of storage resources.

• Question 304:

  A systems administrator has finished installing monthly updates to servers in a cloud environment. The administrator notices certain portions of the playbooks are no longer functioning. Executing the playbook commands manually on a server does not work as well. There are no other reports of issues.

  Which of the following is the MOST likely cause of this issue?

  A. Change management failure

  B. Service overload

  C. Patching failure

  D. Job validation issues

  E. Deprecated features

  Correct Answer: E

  Deprecated features are features that are no longer supported or recommended by the software vendor or provider. They may be removed or replaced by newer features in future updates or versions. If a playbook relies on deprecated features, it may stop functioning after an update or patch is applied to the software. The administrator should check the release notes or documentation of the software to identify and replace any deprecated features in the playbook.

• Question 305:

  A media company has made the decision to migrate a physical, internal file server to the cloud and use a web-based interface to access and manage the files. The users must be able to use their current corporate logins.

  Which of the following is the MOST efficient way to achieve this goal?

  A. Deploy a VM in a cloud, attach storage, and copy the files across

  B. Use a SaaS service with a directory service federation

  C. Deploy a fileshare in a public cloud and copy the files across

  D. Copy the files to the object storage location in a public cloud

  Correct Answer: B

  Software as a service (SaaS) is a type of cloud service model that provides software applications over the Internet that are hosted and managed by a cloud service provider. Directory service federation is a type of authentication mechanism that allows users to access multiple systems or applications across different domains or organizations with a single login credential. Using a SaaS service with a directory service federation can help migrate an internal file server to the cloud and use a web-based interface to access and manage the files, as it can eliminate the need for maintaining an on-premises file server and enable seamless and secure access to cloud-based files using the same corporate logins. References: CompTIA Cloud+ Certification Exam Objectives, page 8, section 1.2

• Question 306:

  A cloud administrator has finished setting up an application that will use RDP to connect. During testing, users experience a connection timeout error.

  Which of the following will MOST likely solve the issue?

  A. Checking user passwords

  B. Configuring QoS rules

  C. Enforcing TLS authentication

  D. Opening TCP port 3389

  Correct Answer: D

  TCP port 3389 is the default port used by Remote Desktop Protocol (RDP) to connect to a remote system or application over a network. Opening TCP port 3389 on the firewall or network device will most likely solve the issue of users experiencing a connection timeout error when trying to use RDP to connect to an application, as it will allow RDP traffic to pass through. If TCP port 3389 is closed or blocked, RDP traffic will be denied or dropped, resulting in a connection timeout error. References: CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8

  Reference: https://docs.microsoft.com/en-us/windows-server/remote/remote-desktop-services/troubleshoot/rdp-error-general-troubleshooting

• Question 307:

  A company needs to rehost its ERP system to complete a datacenter migration to the public cloud. The company has already migrated other systems and configured VPN connections.

  Which of the following MOST likely needs to be analyzed before rehosting the ERP?

  A. Software

  B. Licensing

  C. Right-sizing

  D. The network

  Correct Answer: D

  The network is the set of devices, connections, protocols, and configurations that enable communication and data transfer between different systems and applications. The network can affect the rehosting of an ERP system to complete a datacenter migration to the public cloud, as it can influence factors such as bandwidth, latency, availability, security, and compatibility. The network needs to be analyzed before rehosting the ERP system to ensure that the network requirements and specifications are met, the network performance and reliability are maintained or improved, and the network security and integrity are preserved or enhanced. References: CompTIA Cloud+ Certification Exam Objectives, page 18, section 3.5

• Question 308:

  After analyzing a web server's logs, a systems administrator sees that users are connecting to the company's application through HTTP instead of HTTPS. The administrator then configures a redirect from HTTP to HTTPS on the web server, and the application responds with a connection time-out message.

  Which of the following should the administrator verify NEXT?

  A. The TLS certificate

  B. The firewall rules

  C. The concurrent connection limit

  D. The folder permissions

  Correct Answer: A

  Reference: https://www.ionos.com/digitalguide/hosting/technical-matters/http-408-how-to-fix-the-request-timeout-error/

• Question 309:

  A technician is working with an American company that is using cloud services to provide video-based training for its customers. Recently, due to a surge in demand, customers in Europe are experiencing latency.

  Which of the following services should the technician deploy to eliminate the latency issue?

  A. Auto-scaling

  B. Cloud bursting

  C. A content delivery network

  D. A new cloud provider

  Correct Answer: C

  https://www.cloudflare.com/learning/cdn/what-is-a-cdn/ "A content delivery network (CDN) refers to a geographically distributed group of servers which work together to provide fast delivery of Internet content."

• Question 310:

  A resource pool in a cloud tenant has 90 GB of memory and 120 cores. The cloud administrator needs to maintain a 30% buffer for resources for optimal performance of the hypervisor. Which of the following would allow for the maximum number of two-core machines with equal memory?

  A. 30 VMs, 3GB of memory

  B. 40 VMs, 1,5GB of memory

  C. 45 VMs, 2 GB of memory

  D. 60 VMs, 1 GB of memory

  Correct Answer: C

  To calculate the maximum number of two-core machines with equal memory, we need to consider the resource pool capacity and the buffer requirement. The resource pool has 90 GB of memory and 120 cores, but the cloud administrator needs to maintain a 30% buffer for optimal performance. This means that only 70% of the resources can be used for VM allocation. Therefore, the available memory is 90 GB x 0.7 = 63 GB, and the available cores are 120 x 0.7 = 84 cores. To allocate two-core machines with equal memory, we need to divide the available memory by the available cores and multiply by two. This gives us the memory size per VM: (63 GB / 84 cores) x 2 = 1.5 GB. However, this is not a valid answer option, so we need to find the closest option that does not exceed the available resources. The best option is C, which allocates 45 VMs with 2 GB of memory each. This uses up 45 x 2 = 90 GB of memory and 45 x 2 = 90 cores, which are within the available limits.