CompTIA CV0-003 Online Practice Questions and Exam Preparation

CompTIA CV0-003 Online Questions & Answers

• Question 401:

  An enterprise recently upgraded the memory of its on-premises VMs from 8GB to 16GB. However, users are not experiencing any performance benefit. Which of the following is the MOST likely reason?

  A. Insufficient memory on the hypervisor
  B. Operating system memory limit
  C. Memory mismatch error
  D. Dynamic memory allocation
  B. Operating system memory limit

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  Explanation

  The most likely reason why users are not experiencing any performance benefit after upgrading the memory of their on-premises VMs is that the operating system has a memory limit that prevents it from using more than 8GB of RAM. This could be due to the operating system version, edition, or configuration. The systems administrator should check the operating system settings and requirements and adjust them accordingly to allow the VMs to use the full 16GB of RAM.

  CompTIA Cloud+ Certification Exam Objectives, Domain 4.0 Troubleshooting, Objective 4.3 Given a scenario, troubleshoot capacity issues within a cloud environment.

• Question 402:

  During a security incident, an IaaS compute instance is detected to send traffic to a host related to cryptocurrency mining. The security analyst handling the incident determines the scope of the incident is limited to that particular instance. Which of the following should the security analyst do NEXT?

  A. Isolate the instance from the network into quarantine
  B. Perform a memory acquisition in the affected instance
  C. Create a snapshot of the volumes attached to the instance
  D. Replace the instance with another from the baseline
  A. Isolate the instance from the network into quarantine

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  Explanation

• Question 403:

  A Cloud administrator needs to reduce storage costs. Which of the following would BEST help the administrator reach that goal?

  A. Enabling compression
  B. Implementing deduplication
  C. Using containers
  D. Rightsizing the VMS
  B. Implementing deduplication

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  Explanation

  The correct answer is

  B. Implementing deduplication would best help the administrator reduce storage costs. Deduplication is a technique that eliminates redundant copies of data and stores only one unique instance of the data. This can reduce the amount of storage space required and lower the storage costs. Deduplication can be applied at different levels, such as file-level, block-level, or object-level. Deduplication can also improve the performance and efficiency of backup and recovery operations. Enabling compression is another technique that can reduce storage costs, but it may not be as effective as deduplication, depending on the type and amount of data. Compression reduces the size of data by applying algorithms that remove or replace redundant or unnecessary bits. Compression can also affect the quality and accessibility of the data, depending on the compression ratio and method. Using containers and rightsizing the VMs are techniques that can reduce compute costs, but not necessarily storage costs. Containers are lightweight and portable units of software that run on a shared operating system and include only the necessary dependencies and libraries. Containers can reduce the overhead and resource consumption of virtual machines (VMs), which require a full operating system for each instance. Rightsizing the VMs means adjusting the CPU, memory, disk, and network resources of the VMs to match their workload requirements. Rightsizing the VMs can optimize their performance and utilization, and avoid overprovisioning or underprovisioning.

• Question 404:

  A systems administrator needs to integrate authentication with a partner so the employees of two companies can access the environment with control and management. Which of the following configuration types should the administrator execute in the authentication system?

  A. Single sign-on
  B. Federation Services
  C. Multifactor authentication
  D. Key management
  B. Federation Services

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  Explanation

• Question 405:

  A cloud administrator is designing a multiregion network within an IaaS provider. The business requirements for configuring the network are as follows:

  1.Use private networking in and between the multisites for data replication.

  2.Use low latency to avoid performance issues.

  Which of the following solutions should the network administrator use within the IaaS provider to connect multiregions?

  A. Peering
  B. Gateways
  C. VPN
  D. Hub and spoke
  A. Peering

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  Explanation

  Peering is a type of network connection that allows two or more networks to exchange traffic directly without using an intermediary or a third-party service. Peering can help connect multiregions within an IaaS provider, as it can enable private networking in and between the multisites for data replication. Peering can also provide low latency, as it can reduce the number of hops and distance between the networks. Peering is the best solution for designing a multiregion network within an IaaS provider to support business requirements.

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

• Question 406:

  When designing a three-node, load-balanced application, a systems administrator must ensure each node runs on a different physical server for HA purposes. Which of the following does the systems administrator need to configure?

  A. Round-robin methods
  B. Live migration
  C. Anti-affinity rule
  D. Priority queues
  C. Anti-affinity rule

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  Explanation

  https://www.techtarget.com/searchvmware/feature/Use-affinity-and-anti-affinity-rules-to-guide-VM-behavior

• Question 407:

  A company plans to publish a new application and must conform with security standards. Which of the following types of testing are most important for the systems administrator to run to assure the security and compliance of the application before publishing? (Select two).

  A. Regression testing
  B. Vulnerability testing
  C. Usability testing
  D. Functional testing
  E. Penetration testing
  F. Load testing
  B. Vulnerability testing
  E. Penetration testing

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  Explanation

  Vulnerability testing and penetration testing are two types of security testing that can help to identify and mitigate potential risks in an application before publishing. Vulnerability testing is the process of scanning the application for known weaknesses or flaws that could be exploited by attackers. Penetration testing is the process of simulating real-world attacks on the application to test its defenses and find vulnerabilities that may not be detected by automated scans. Both types of testing can help to assure the security and compliance of the application by revealing and resolving any issues that could compromise the confidentiality, integrity, or availability of the application or its data.

  References: CompTIA Cloud+ CV0-003 Study Guide, Chapter 5: Maintaining a Cloud Environment, page 221.

• Question 408:

  A cloud administrator is reviewing the current private cloud and public law environment, and is building an optimization plan. Portability is of great concern for the administrator so resources can be easily moved from one environment to another. Which of the following should the administrator implement?

  A. Serverless
  B. CDN
  C. Containers
  D. Deduplication
  C. Containers

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  Explanation

• Question 409:

  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 410:

  A systems administrator has verified that a physical switchport that is connected to a virtualization host is using all available bandwidth. Which of the following would BEST address this issue?

  A. Port mirroring
  B. Link aggregation
  C. Spanning tree
  D. Microsegmentation
  B. Link aggregation

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  Explanation

  Link aggregation, often referred to as "bonding" or "teaming," combines multiple physical network links into a single logical link. This provides increased bandwidth, fault tolerance, and load balancing. In the context of a virtualization host using all available bandwidth, implementing link aggregation would allow the host to utilize the combined bandwidth of multiple physical links, thus alleviating congestion and ensuring efficient use of network resources. This can significantly improve network performance for the virtualized environment.