CompTIA SK0-005 CompTIA Server+ Certification Exam Practice Test

Answer : B

Overprovisioningrefers to allocating more resources (e.g., CPU, memory) to virtual machines on a hypervisor than the physical host actually has available. This is done because not all virtual machines are likely to use their maximum resources simultaneously. Overprovisioning helps optimize resource utilization on a hypervisor but must be managed carefully to avoid performance degradation.

Overprovisioning (Answer B):It allows for more efficient use of resources, but overcommitting too much can lead to performance issues.

Direct access (Option A):Refers to direct hardware access, which is unrelated to resource allocation.

Link aggregation (Option C):Refers to combining multiple network connections, unrelated to hypervisor resources.

Component redundancy (Option D):Refers to using backup components for fault tolerance, not related to overprovisioning.

Scalability (Option E):Refers to the ability to increase or decrease resources as needed but doesn't describe overcommitting resources.

CompTIA Server+ Reference:This topic is covered underSK0-005 Objective 1.3: Explain virtualization concepts and benefits.

Answer : A

During a data center migration, the ability to move workloads seamlessly from one environment to another is crucial. Portability in virtualization refers to the capability to transfer virtual machines (VMs) across different physical hosts or data centers with minimal disruption. This flexibility simplifies the migration process, reduces downtime, and ensures business continuity.

Other Options:

B . Orchestration: This involves the automated arrangement, coordination, and management of complex computer systems, middleware, and services. While orchestration enhances efficiency in managing virtual environments, it is not the primary benefit during a migration process.

C . Overprovisioning: This refers to allocating more resources than are physically available, relying on the assumption that not all resources will be used simultaneously. Overprovisioning can lead to resource contention and is generally avoided in well-managed virtual environments.

D . Scalability: This is the ability to increase or decrease resources and workloads dynamically based on demand. While scalability is a significant advantage of virtualization, it does not directly address the challenges associated with data center migration.

Therefore, Portability is the most critical benefit of virtualization during a data center migration, as it facilitates the efficient and reliable transfer of workloads between environments.

CompTIA Server+ Certification Exam Objectives (SK0-005): Server Administration -- Summarize the purpose and operation of virtualization

Answer : C

The best practice for troubleshooting is to follow a logical and systematic process that involves identifying the problem, establishing a theory of probable cause, testing the theory, establishing a plan of action, implementing the solution, verifying functionality, and documenting findings. Since the problem occurred after a change in the server's BIOS, the most likely cause is that the change was incompatible or incorrect for the OS. Therefore, the next step should be to reverse the latest change made to the server and reboot to see if that fixes the issue.Reference: https://www.comptia.org/training/resources/exam-objectives/comptia-server-sk0-005-exam-objectives (Objective 4.3)

Answer : A

Load balancing is a technique used to distribute workloads evenly across multiple servers, ensuring no single server is overwhelmed. This is especially important in environments where high availability and reliability are critical, such as when multiple servers are serving the same website. By doing so, load balancing improves the responsiveness and availability of applications or websites.

Load balancing refers to the process of distributing network or application traffic across multiple servers to ensure no single server becomes overwhelmed, thereby improving responsiveness and availability of applications or websites. In the scenario described, where four servers are set up to each serve the same website, the concept of load balancing is applied. This setup aims to distribute incoming requests evenly among the servers to maximize speed and capacity utilization while ensuring no one server is overburdened, which can lead to improved overall performance of the website. Options B, C, and D do not accurately describe the scenario of distributing traffic for the same website across multiple servers.

Answer : C, D

Signal blocking is a technique that prevents or reduces the transmission of electromagnetic signals from a building to the outside. Signal blocking can be achieved by using materials that absorb, reflect, or scatter the signals, such as metal, concrete, or mesh.Signal blocking can protect the data center from eavesdropping, interference, or jamming by unauthorized parties1.

Camouflage is a technique that disguises or conceals the appearance of a building to make it less noticeable or identifiable from the outside. Camouflage can be achieved by using colors, patterns, shapes, or vegetation that blend in with the surrounding environment.Camouflage can protect the data center from detection, reconnaissance, or targeting by hostile parties

Answer : C

A synthetic full backup is a type of backup that combines a full backup with one or more incremental backups to create a new full backup without accessing the source data. This type of backup is suitable for database servers, as it reduces the backup window, minimizes the impact on the server performance, and provides faster recovery time. Verified Reference: [Synthetic Full Backup]

Answer : D

The administrator should rebuild the volume to restore it after replacing the failed hard drive. A volume is a logical unit of storage that can span across multiple physical disks. A volume can be configured with different levels of RAID (Redundant Array of Independent Disks) to provide fault tolerance and performance enhancement. When a hard drive in a RAID volume fails, the data on that drive can be reconstructed from the remaining drives using parity or mirroring techniques. However, this process requires a new hard drive to replace the failed one and a rebuild operation to copy the data from the existing drives to the new one. Rebuilding a volume can take a long time depending on the size and speed of the drives and the RAID level.