CompTIA CV0-004 Online Practice Questions and Exam Preparation

CompTIA CV0-004 Online Questions & Answers

• Question 61:

  A cloud engineer must improve the availability of a database for an application. The database must meet the following requirements: Failover capability in case of a data center outage Point-in-time data restoration capabilities.

  Which of the following best meets these requirements?

  A. Clustered database instance
  B. Cached Redis cluster
  C. Database instance replica
  D. Multi-availability zone database instance
  D. Multi-availability zone database instance

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  Explanation

  A multi-availability zone database instance provides automatic failover across data centers and supports point-in-time recovery, meeting both the high-availability and restoration requirements.

• Question 62:

  SIMULATION

  An e-commerce company is migrating from an on-premises private cloud environment to a public cloud IaaS environment. You are tasked with right-sizing the environment to save costs after the migration. The company's requirements are to provide a 20% overhead above the average resource consumption, rounded up.

  INSTRUCTIONS

  Review the specifications and graphs showing resource usage for the web and database servers. Determine the average resource usage and select the correct specifications from the available drop-down options.

  

  A. Check the Explanation for the complete Solution.
  B. PlaceHolder
  C. PlaceHolder
  D. PlaceHolder
  A. Check the Explanation for the complete Solution.

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  Explanation

  For the Web Server:

  CPU: 2 vCPUs RAM: 2GB Disk Speed: 10MBps For the Database Server:

  CPU: 6 vCPUs RAM: 128GB Disk Speed: 110MBps These selections are based on maintaining a 20% overhead above the average resource consumption and rounding up to the next available option in the dropdowns provided.

• Question 63:

  Which of the following should be considered when using cloud-managed services?

  A. Compiling sources
  B. Patching the operating system
  C. Installing the service
  D. Configuring IAM
  D. Configuring IAM

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  Explanation

  When using cloud-managed services, the cloud provider handles infrastructure management, including installation, patching, and maintenance. However, Identity and Access Management (IAM) remains the responsibility of the user. Proper IAM configuration ensures that only authorized users and applications have the necessary permissions to access and interact with the managed service, enhancing security and compliance.

• Question 64:

  An organization uses a cloud provider's specific features to host applications. The organization planned to move to another cloud provider due to rising costs, but moving was not technically feasible.

  Which of the following best describes this situation?

  A. Platform as a service
  B. Oversubscription
  C. Vendor lock-in
  D. Regulatory compliance
  C. Vendor lock-in

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  Explanation

  Vendor lock-in occurs when an organization becomes dependent on a cloud provider's proprietary services, features, or technologies, making migration to another provider difficult, costly, or technically impractical.

  The inability to move applications to a different provider due to reliance on provider-specific features is a classic example of vendor lock-in.

• Question 65:

  A software development team must manage changes to source code for different clients who utilize the same product with different features.

  Which of the following meets this requirement?

  A. Branch
  B. Commit
  C. Push
  D. Merge
  A. Branch

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  Explanation

  Branching allows developers to create separate code lines for different clients or features while maintaining the main codebase. This enables parallel development and customization without affecting the core product.

• Question 66:

  Which of the following would allow a cloud engineer to flatten a deeply nested JSON log to improve readability for analysts?

  A. Grafana
  B. Kibana
  C. Elasticsearch
  D. Logstash
  D. Logstash

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  Explanation

  Logstash can be used to flatten a deeply nested JSON log, which would improve readability for analysts.

  Logstash is a data processing pipeline that ingests data from various sources, transforms it, and then sends it to a "stash" like Elasticsearch.

  References:

  CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Data Management

• Question 67:

  A banking firm's cloud server will be decommissioned after a successful proof of concept using mirrored data.

  Which of the following is the best action to take regarding the storage used on the decommissioned server?

  A. Keep it temporarily.
  B. Archive it.
  C. Delete it.
  D. Retain it permanently
  B. Archive it.

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  Explanation

  When a cloud server is decommissioned after a proof of concept, the best action to take regarding the storage used on the server is to archive it. Archiving ensures that the data is kept in a less accessible but secure storage service, which may be required for regulatory or compliance reasons, especially for a banking firm.

  References:

  Data management strategies, including archiving decommissioned data, are covered in the CompTIA Cloud+ examination objectives, particularly within the domain of management and technical operations.

• Question 68:

  A small marketing company recently moved all of its storage to a cloud provider. The budget for storage has limited the company to buying a small amount of SSD storage and a lot of spinning disks. The storage administrator needs to find a way to optimize this environment to realize maximum speed.

  Which of the following would best achieve this?

  A. Compression
  B. Automated storage tiering
  C. Deduplication
  D. Autoscaling
  B. Automated storage tiering

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  Explanation

  Automated storage tiering is a technique used to optimize storage performance by automatically moving data between different tiers of storage based on its access frequency and importance. In this scenario, since the company has limited SSD storage and a lot of spinning disks due to budget constraints, implementing automated storage tiering would allow frequently accessed and critical data to be stored on the faster SSD storage, while less frequently accessed data can be stored on the slower spinning disks.

  This would maximize speed for critical operations while efficiently utilizing the available resources.

• Question 69:

  An administrator needs to provide a backup solution for a cloud infrastructure that enables the resources to run from another data center in case of a outage. Connectivity to the backup data center is via a third-party, untrusted network.

  Which of the following is the most important feature required for this solution?

  A. Deduplication
  B. Replication
  C. Compression
  D. Encryption
  E. Labeling
  D. Encryption

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  Explanation

  When backing up data that will traverse a third-party, untrusted network, encryption is the most important feature to ensure the confidentiality and integrity of the data. Encryption will protect the data from potential interception or tampering during transit to the backup data center.

  References:

  CompTIA Cloud+ Guide to Cloud Computing (ISBN: 978-1-64274-282-2)

• Question 70:

  A cloud administrator is troubleshooting an issue for a client. The client has the following capabilities: Can access servers on the VPC, including servers on other subnets Can ping other resources on the network Can ping its own gateway.

  However, the client cannot reach the internet.

  Which of the following is most likely the cause?

  A. The gateway is missing a route
  B. The client has a duplicate IP address
  C. The DHCP server is not functioning properly
  D. The network has too much latency.
  A. The gateway is missing a route

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  Explanation

  The client can communicate within the VPC, reach other subnets, and ping its gateway, which indicates local network connectivity is functioning correctly. The inability to access the internet most likely indicates that the gateway or associated route table is missing a default route (such as 0.0.0.0/0) to an internet gateway or other outbound path. Without this route, internet-bound traffic cannot leave the VPC.