CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 1:

  A company has an in-house-developed application. The administrator wants to utilize cloud services for additional peak usage workloads. The application has a very unique stack of dependencies. Which of the following cloud service subscription types would BEST meet these requirements?

  A. PaaS
  B. SaaS
  C. DBaaS
  D. IaaS
  D. IaaS

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  Explanation

  IaaS (Infrastructure as a Service) is a cloud service model that provides basic computing resources such as servers, storage, network, etc., to the customers. The customers have full control and flexibility over these resources and can install and configure any software they need on them. IaaS is suitable for applications that have a unique stack of dependencies that may not be supported by other cloud service models.

• Question 2:

  A company is planning its cloud architecture and wants to use a VPC for each of its three products per environment in two regions, totaling 18 VPCs. The products have interdependences, consuming services between VPCs. Which of the following should the cloud architect use to connect all the VPCs?

  A. MPLS connections
  B. VPC peering
  C. Hub and spoke
  D. VPN connections
  C. Hub and spoke

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  Explanation

  The best way to connect all the VPCs for the company that is planning its cloud architecture and wants to use a VPC for each of its three products per environment in two regions, totaling 18 VPCs, is to use a hub and spoke model. A hub and spoke model is a networking model that uses a central hub VPC that connects to multiple spoke VPCs that host the products or workloads. The hub VPC can provide common services and security policies for the spoke VPCs, such as network virtual appliances, DNS servers, firewalls, or VPN gateways. The spoke VPCs can communicate with each other through the hub VPC, using private IP addresses or peering connections. A hub and spoke model can simplify the management and scalability of the network, as well as reduce the costs and complexity of peering multiple VPCs directly.

  Hub-and-spoke network topology - Cloud Adoption Framework

• Question 3:

  A systems administrator is configuring updates on a system. Which of the following update branches should the administrator choose to ensure the system receives updates that are maintained for at least four years?

  A. LTS
  B. Canary
  C. Beta
  D. Stable
  A. LTS

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  Explanation

  LTS (Long Term Support) is the update branch that the administrator should choose to ensure the system receives updates that are maintained for at least four years. An update branch is a category or group of updates that have different characteristics or features, such as frequency, stability, duration, etc. An update branch can help customers to choose the type of updates that suit their needs and preferences. LTS is an update branch that provides updates that are stable, reliable, and secure, and are supported for a long period of time, usually four years or more. LTS can help customers who value stability and security over new features or functions, and who do not want to change or upgrade their systems frequently.

• Question 4:

  A systems administrator received an email from a cloud provider stating that storage is 80% full on the volume that stores VDI desktops. Which of the following is the MOST efficient way to mitigate the situation?

  A. Deduplication
  B. Compression
  C. Replication
  D. Storage migration
  A. Deduplication

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  Explanation

  https://www.techtarget.com/searchvirtualdesktop/tip/How-to-evaluate-VDI-storage-requirements

• Question 5:

  An environment has a dual-stack infrastructure in an active-active configuration in two separate data centers. Which of the following best describes replication between the two sites?

  A. Data is moved constantly from the hot site to the warm site.
  B. Data is replicated every 15 minutes from one site to the other.
  C. Data is moved from one site to the other once per day.
  D. Data is synchronized in real time across the sites.
  E. Data is moved twice a day from Site A to Site B, and then from Site B to Site A.
  D. Data is synchronized in real time across the sites.

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  Explanation

  In an active-active configuration with dual-stack infrastructure across two separate data centers, the best practice for replication is to synchronize data in real-time across the sites. Real-time synchronization ensures that changes made in one data center are immediately replicated to the other data center, maintaining consistency and availability of data across both sites.

• Question 6:

  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
  D. The wrong gateway

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  Explanation

  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 7:

  A company is concerned about the security of its data repository that contains customer PII. A systems administrator is asked to deploy a security control that will prevent the exfiltration of such data. Which of the following should the systems administrator implement?

  A. DLP
  B. WAF
  C. FIM
  D. ADC
  A. DLP

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  Explanation

  Implementing DLP (Data Loss Prevention) is the best solution to prevent the exfiltration of customer PII (Personally Identifiable Information) from a data repository. DLP is a security control that monitors, detects, and blocks sensitive data from leaving or being accessed by unauthorized parties. DLP can be applied at different levels, such as network, endpoint, storage, or cloud. DLP can help to protect customer PII from being leaked, stolen, or compromised.

  https://cloud.google.com/blog/products/identity-security/4-steps-to-stop-data-exfiltration-with-google-cloud

• Question 8:

  A VDI administrator has received reports of poor application performance.

  Which of the following should the administrator troubleshoot FIRST?

  A. The network environment
  B. Container resources
  C. Client devices
  D. Server resources
  D. Server resources

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  Explanation

  In a Virtual Desktop Infrastructure (VDI) environment, poor application performance is often related to the resources on the server hosting the virtual desktops. This could include CPU, memory, storage, or network resources. If these resources are insufficient or not performing optimally, it can lead to poor performance for all users on the server.

• Question 9:

  A company recently experienced a power outage that lasted 30 minutes. During this time, a whole rack of servers was inaccessible, even though the servers did not lose power. Which of the following should be investigated FIRST?

  A. Server power
  B. Rack power
  C. Switch power
  D. SAN power
  C. Switch power

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  Explanation

  If a whole rack of servers was inaccessible during a power outage, even though the servers did not lose power, it is likely that the switch that connects them to the network lost power. Without network connectivity, the servers would not be able to communicate with other devices or services. The administrator should investigate the switch power source and ensure it has a backup power supply or UPS.

• Question 10:

  A web server has been deployed in a public IaaS provider and has been assigned the public IP address of 72.135.10.100. Users are now reporting that when they browse to the website, they receive a message indicating the service is unavailable. The cloud administrator logs into the server, runs a netstat command, and notices the following relevant output:

  

  Which of the following actions should the cloud administrator take to resolve the issue?

  A. Assign a new IP address of 192.168.100.10 to the web server
  B. Modify the firewall on 72.135.10.100 to allow only UDP
  C. Configure the WAF to filter requests from 17.3.130.3
  D. Update the gateway on the web server to use 72.135.10.1
  C. Configure the WAF to filter requests from 17.3.130.3

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  Explanation