CompTIA CompTIA Certifications CV0-003 Questions & Answers

• Question 251:

  Which of the following cloud deployment models allows a company to have full control over its IT infrastructure?

  A. Private

  B. Cloud within a cloud

  C. Hybrid

  D. Public

  Correct Answer: A

  A private cloud is a type of cloud deployment model that provides cloud services exclusively to a single organization or tenant. A private cloud allows a company to have full control over its IT infrastructure, as it can customize, configure, manage, and secure its own cloud environment according to its specific needs and preferences. A private cloud can also offer higher performance, reliability, and privacy than other cloud deployment models, as it does not share resources or data with other customers. References: CompTIA Cloud+ Certification Exam Objectives, page 8, section 1.2 Reference: https://www.sciencedirect.com/topics/computer-science/private-cloud

• Question 252:

  A systems administrator is configuring RAID for a new server. This server will host files for users and replicate to an identical server. While redundancy is necessary, the most important need is to maximize storage.

  Which of the following RAID types should the administrator choose?

  A. 5

  B. 6

  C. 10

  D. 50

  Correct Answer: A

  Since the minimum number of required disks for RAID 60 is 8, we'll use 8, 1TB drives for this example.

  RAID 5 Usable storage = 7 TB RAID 6 Usable Storage = 6 TB RAID 50 Usable Storage = 6 TB RAID 60 Usable Storage = 4 TB

  This is not debatable, the best RAID to maximize storage is RAID 5. The question asks nothing about performance, only storage.

• Question 253:

  A systems administrator is troubleshooting network throughput issues following a deployment. The network is currently being overwhelmed by the amount of traffic between the database and the web servers in the environment.

  Which of the following should the administrator do to resolve this issue?

  A. Set up affinity rules to keep web and database servers on the same hypervisor

  B. Enable jumbo frames on the gateway

  C. Move the web and database servers onto the same VXLAN

  D. Move the servers onto thick-provisioned storage

  Correct Answer: A

• Question 254:

  A systems administrator notices that a piece of networking equipment is about to reach its end of support.

  Which of the following actions should the administrator recommend?

  A. Update the firmware

  B. Migrate the equipment to the cloud

  C. Update the OS

  D. Replace the equipment

  Correct Answer: D

  Replacing the equipment is the best action to take when a piece of networking equipment is about to reach its end of support. End of support means that the vendor or manufacturer will no longer provide technical assistance, updates, patches, or fixes for the equipment, which can affect its functionality, performance, security, and compatibility. Replacing the equipment with a newer model that has ongoing support can prevent any issues or risks associated with using outdated equipment. References: CompTIA Cloud+ Certification Exam Objectives, page 18, section 3.5

• Question 255:

  A support engineer wants to prevent users from running malware on several IaaS compute instances. Which of the following will BEST achieve this objective?

  A. Encrypt all applications that users should not access.

  B. Set the execute filesystem permissions on the desired applications only.

  C. Implement an application whitelisting policy.

  D. Disable file sharing on the instance.

  Correct Answer: C

  Implementing an application whitelisting policy is the best way to prevent users from running malware on several IaaS compute instances. Application whitelisting is a security technique that allows only authorized or trusted applications to run on a system or device, and blocks or restricts all other applications. Application whitelisting can prevent users from running malware or unwanted software on their cloud instances, as well as reduce the attack surface and vulnerabilities of the system.

• Question 256:

  A company is utilizing a private cloud solution that is hosted within its datacenter. The company wants to launch a new business application, which requires the resources below:

  

  The current private cloud has 30 vCPUs and 512GB RAM available. The company is looking for a quick solution to launch this application, with expected maximum sessions to be close to 24,000 at launch and an average of approximately

  5,000 sessions.

  Which of the following solutions would help the company accommodate the new workload in the SHORTEST amount of time and with the maximum financial benefits?

  A. Configure auto-scaling within the private cloud

  B. Set up cloud bursting for the additional resources

  C. Migrate all workloads to a public cloud provider

  D. Add more capacity to the private cloud

  Correct Answer: B

  Cloud Bursting can be used for both compute and storage. This question is about compute capability. "Compute Bursting" unleashes the high-performance compute capabilities of the cloud for processing locally created datasets. (reference:

  https://www.ctera.com/it-initiatives/cloud-bursting/)

  https://azure.microsoft.com/en-us/overview/what-is-cloud-bursting/

• Question 257:

  Which of the following will provide a systems administrator with the MOST information about potential attacks on a cloud IaaS instance?

  A. Network flows

  B. FIM

  C. Software firewall

  D. HIDS

  Correct Answer: D

  HIDS (Host-based Intrusion Detection System) is the tool that will provide the administrator with the most information about potential attacks on a cloud IaaS instance. HIDS is a software or agent that monitors and analyzes the activities and events on a host system or device, such as a cloud instance. HIDS can detect and alert on any malicious or anomalous behavior, such as unauthorized access, malware infection, configuration changes, etc., that may indicate an attack or compromise.

• Question 258:

  A systems administrator is configuring network management but is concerned about confidentiality. Which of the following should the administrator configure to address this concern?

  A. Community strings

  B. IPSec tunnels

  C. ACLs

  D. SNMPv3

  Correct Answer: D

  SNMPv3 is the protocol that the administrator should configure to address the concern about confidentiality for network management. SNMP (Simple Network Management Protocol) is a standard protocol that allows network devices and systems to exchange information and perform management tasks. SNMPv3 is the latest version of SNMP that provides security enhancements, such as authentication, encryption, and access control, to protect the confidentiality, integrity, and availability of network data.

• Question 259:

  A systems administrator is provisioning VMs in a cloud environment and has been told to select an OS build with the furthest end-of-life date. Which of the following OS builds would be BEST for the systems administrator to use?

  A. Open-source

  B. LTS

  C. Canary

  D. Beta

  E. Stable

  Correct Answer: B

  Long-term support (LTS) is a type of release cycle that provides extended support and maintenance for software products or operating systems. LTS releases typically have longer end-of-life dates than regular releases, as they receive security updates, bug fixes, and patches for several years after their initial release date. LTS releases can also offer higher stability, reliability, and compatibility than regular releases, as they undergo more testing and quality assurance processes before being released. LTS is the best OS build for a systems administrator to use when provisioning VMs in a cloud environment and being told to select an OS build with the furthest end-of-life date. References: CompTIA Cloud+ Certification Exam Objectives, page 11, section 1.6

• Question 260:

  A systems administrator is configuring a storage array.

  Which of the following should the administrator configure to set up mirroring on this array?

  A. RAID 0

  B. RAID 1

  C. RAID 5

  D. RAID 6

  Correct Answer: B

  RAID 1 is a type of RAID level that creates an exact copy or mirror of data on two or more disks. RAID 1 can provide redundancy and fault tolerance, as it can survive the failure of one disk without losing any data. RAID 1 can also improve read performance, as it can access data from multiple disks simultaneously. The administrator should configure RAID 1 to set up mirroring on a storage array. References: CompTIA Cloud+ Certification Exam Objectives, page 9, section 1.4

  Reference: https://www.enterprisestorageforum.com/storage-management/raid-levels.html