CompTIA CV0-004 Online Practice Questions and Exam Preparation

CompTIA CV0-004 Online Questions & Answers

• Question 341:

  A company is concerned it will run out of VLANs on its private cloud platform in the next couple months, and the product currently offered to customers requires the company to allocate three dedicated, segmented tiers.

  Which of the following can the company implement to continue adding new customers and to maintain the required level of isolation from other tenants?

  A. GRE
  B. SR-IOV
  C. VXLAN
  D. IPSec
  C. VXLAN

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  Explanation

  One possible solution for the company to continue adding new customers and to maintain the required level of isolation from other tenants is to implement VXLAN. VXLAN is a network virtualization technology that can extend VLAN by adding a 24-bit segment ID, which allows up to 16 million unique virtual segments. VXLAN can encapsulate layer 2 Ethernet frames within layer 3 IP packets, and tunnel them across the underlying network. VXLAN can provide logical isolation and security for different tenants, as well as scalability and flexibility for large cloud computing environments 1.

• Question 342:

  Which of the following network protocols is generally used in a NAS environment?

  A. BGP
  B. RDP
  C. TCP/IP
  D. iSCSI
  C. TCP/IP

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  Explanation

  The network protocol generally used in a NAS (Network Attached Storage) environment is TCP/IP (Transmission Control Protocol/Internet Protocol). NAS devices are accessed over a network rather than being directly connected to the computer, and they utilize the TCP/IP protocol to enable this network communication.

  References:

  Understanding of networking protocols, including TCP/IP in the context of NAS environments, is part of the foundational networking knowledge for cloud services in CompTIA Cloud+.

• Question 343:

  A cloud administrator has built a new private cloud environment and needs to monitor all computer, storage, and network components of the environment.

  Which of the following protocols would be MOST useful for this task?

  A. SMTP
  B. SCP
  C. SNMP
  D. SFTP
  C. SNMP

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  Explanation

  Simple Network Management Protocol (SNMP) is a protocol that enables monitoring and managing network devices and components in an IP network. SNMP can help monitor all computer, storage, and network components of a private cloud environment, as it can collect and report information about their status, performance, configuration, and events. SNMP can also help troubleshoot and optimize the private cloud environment, as it can detect and alert any issues or anomalies related to the network devices and components.

  References:

  CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8

• Question 344:

  A company is required to save historical data for seven years. A cloud administrator implements a script that automatically deletes data older than seven years.

  Which of the following concepts best describes why the historical data is being deleted?

  A. End of life
  B. Data loss prevention
  C. Cost implications
  D. Tiered storage for archiving
  A. End of life

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  Explanation

  Deleting historical data older than seven years as described is an example of data end of life (EOL) policies in action. These policies dictate when data is no longer needed or relevant and should be securely disposed of, often for compliance, legal, or cost-saving reasons.

  References:

  CompTIA Cloud+ resources and data management strategies

• Question 345:

  An organization is hosting a seminar with eight individuals who need to connect to their own dedicated VM.

  The technician used the following VM configurations:

  IP address: DHCP

  NIC: 1Gbps

  Network: 10.1.10.0/29

  Several users are unable to access their VMs.

  Which of the following best describes the reason?

  A. Not enough addresses are available.
  B. The routes are misconfigured.
  C. Too much traffic is on the network.
  D. DHCP is not working correctly on the VM.
  A. Not enough addresses are available.

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  Explanation

  The network is configured with a subnet of /29, which provides only 6 usable IP addresses after accounting for the network and broadcast addresses. With eight individuals needing to connect to their own dedicated VMs, there are not enough IP addresses available to assign to each VM, leading to several users being unable to access their VMs. This issue is not related to misconfigured routes, network traffic, or DHCP functionality, but rather the limited number of IP addresses available in the given subnet.

• Question 346:

  A cloud solutions architect is designing a VM-based solution that requires reducing the cost as much as possible.

  Which of the following solutions will best satisfy this requirement?

  A. Using ephemeral storage on replicated VMs
  B. Creating Spot VMs in one availability zone
  C. Spreading the VMs across different regions
  D. Using provisioned IOPS storage
  B. Creating Spot VMs in one availability zone

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  Explanation

  Using Spot VMs is a cost-effective solution as these are available at significantly reduced prices compared to standard instances. Spot VMs are ideal for workloads that can tolerate interruptions and are a way to take advantage of unused cloud capacity.

  References:

  The concept of Spot VMs and their cost benefits are included in the financial aspects of managing cloud resources, as per the CompTIA Cloud+ certification guidelines.

• Question 347:

  A company is using a method of tests and upgrades in which a small set of end users are exposed to new services before the majority of other users.

  Which of the following deployment methods is being used?

  A. Blue-green
  B. Canary
  C. Big bang
  D. Rolling
  B. Canary

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  Explanation

  A canary deployment is a software deployment technique where a new feature or version is released to a small subset of users in production prior to releasing it to a larger subset or all the users. It is also sometimes termed a phased rollout or incremental release 1. A canary deployment allows the developers to test the new service in a real environment and get feedback from the users before making it available to everyone. It also reduces the risk of failures and enables easy rollbacks if something goes wrong. A canary deployment is different from a blue-green deployment, where two identical environments are used to switch between the old and new versions of the service. A big bang deployment is where the new service is released to all the users at once, without any testing or gradual rollout. A rolling deployment is where the new service is installed in batches or stages, replacing the old service gradually until all the users are on the new version.

• Question 348:

  A project team identifies tasks that can be decomposed into smaller deliverables while reviewing planning documents.

  Which document should be updated first?

  A. Risk assessment
  B. Preliminary scope statement
  C. Work breakdown structure
  D. Milestone chart
  C. Work breakdown structure

• Question 349:

  In a mission critical environment, performing maintenance operations on a host FIRST requires which of the following?

  A. Shutting down the host.
  B. Migrating all VMs off the host.
  C. Shutting down the VMs on the host.
  D. Pausing the VMs on the host
  D. Pausing the VMs on the host

• Question 350:

  Which of the following container commands implements network port mapping?

  A. $docker run -it myimage -e /bin/port 8080
  B. $docker run myimage:port
  C. $docker run -it -p 1-65535 myimage -e netstat 8080
  D. $docker run -it -p 80:8080 myimage
  D. $docker run -it -p 80:8080 myimage

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  Explanation

  The -p option in docker run maps a host port to a container port, as shown in -p 80:8080, enabling network port mapping.