CompTIA Updated SK0-005 Exam Questions and Answers by nikolas

Alerts are notifications that inform the technician or the team of any issues or events that occur on a server or a network. Alerts can be configured to trigger based on certain thresholds, such as CPU usage, disk space, memory utilization, or response time. Alerts can help the technician monitor and troubleshoot the server performance in real time. Verified References: [Alerts], [Server performance]

The correct answer is D. A virtual switch.

A virtual switch is a software-based network device that connects the virtual machines (VMs) in a virtual environment and allows them to communicate with each other and with the physical network. A virtual switch can also create and manage virtual LANs (VLANs), which are logical segments of a network that separate the traffic of different VMs or groups of VMs. A VLAN needs a DHCP server to assign IP addresses to the VMs that belong to it. A virtual switch can act as a DHCP relay agent and forward the DHCP requests from the VMs to the DHCP server on the physical network.This way, the VMs can receive correct IP addresses for their VLANs123

A virtual router is a software-based network device that routes packets between different networks or subnets. A virtual router can also create andmanage VLANs, but it is not necessary for a VM to receive a correct IP address.A virtual router can be used to provide additional security, redundancy, or load balancing for the VMs12

A host NIC is a physical network interface card that connects the host machine to the physical network. A host NIC can also support VLAN tagging, which allows the host machine to communicate with different VLANs on the network. However, a host NIC alone cannot ensure that a VM receives a correct IP address for its VLAN.The host NIC needs to be connected to a virtual switch that can relay the DHCP requests from the VMs to the DHCP server12

A VPN is a virtual private network that creates a secure tunnel between two or more devices over the internet. A VPN can be used to encrypt and protect the data traffic of the VMs, but it is not related to the configuration of VLANs or IP addresses.A VPN does not affect how a VM receives a correct IP address for its VLAN14

A vNIC is a virtual network interface card that connects a VM to a virtual switch or a virtual router. A vNIC can also support VLAN tagging, which allows the VM to communicate with different VLANs on the network. However, a vNIC alone cannot ensure that a VM receives a correct IP address for its VLAN.The vNIC needs to be connected to a virtual switch or a virtual router that can relay the DHCP requests from the VMs to the DHCP server12

The RAID level that should be implemented to maximize usable capacity without requiring redundancy is RAID 0. RAID (Redundant Array of Independent Disks) is a technology that combines multiple physical disks into a logical unit that provides improved performance, reliability, or both. RAID 0 is a RAID level that splits data evenly across two or more disks without parity or mirroring. RAID 0 does not provide any redundancy or fault tolerance, but it increases usable capacity and performance by allowing parallel read and write operations.

The BIOS (Basic Input/Output System) or UEFI (Unified Extensible Firmware Interface) setup is a program that allows users to configure the hardware settings of a computer, such as the CPU, memory, disk, and boot options. The BIOS/UEFI setup can be accessed by pressing aspecific key (such as F2, F10, or Delete) during the boot process, before the operating system loads12.

One of the settings that can be changed in the BIOS/UEFI setup is the CPU hyperthreading option. Hyperthreading is a technology that enables a single physical CPU core to execute two threads or tasks simultaneously, improving the performance and efficiency of multi-threaded applications. However, some software licenses may limit the number of CPU cores or threads that can be used, and therefore require disabling hyperthreading on the server34.

To disable hyperthreading on a server, the administrator will likely need to enter the BIOS/UEFI setup and navigate to the processor options menu. There, the administrator will find a setting for Intel ® Hyperthreading Technology or Hyperthreading Function, which can be enabled or disabled. The administrator will need to disable this setting and save the changes. This will turn off hyperthreading on the server and reduce the number of logical CPUs to match the number of physical cores5.