Sematec MCSA Quiz

Explanation
iSNS stands for Internet Storage Name Service. It is a feature in Windows Server 2016 that helps to automate the management of both iSCSI and fiber channel storage devices. iSNS allows storage devices to register their presence on the network, which enables automatic discovery and configuration of storage devices by servers. By using iSNS, administrators can easily manage and configure both iSCSI and fiber channel storage devices in a centralized manner, reducing the manual effort required for storage management.

Explanation
Shielded virtual machines is the correct feature to use in order to ensure that each virtual machine is accessible only by its administrators. Shielded virtual machines provide protection against unauthorized access by encrypting the virtual machine and its data, and only allowing it to run on authorized hosts. This feature also prevents tampering and ensures the integrity of the virtual machine. Nested virtualization allows running virtual machines inside other virtual machines, but it does not provide the same level of access control. Discrete device assignment is used to directly assign physical hardware to a virtual machine, but it does not address the issue of access control. Production checkpoints are used for creating snapshots of virtual machines for backup or testing purposes, but they do not control access to the virtual machines.

Explanation
The correct answer is Windows Server 2016 Standard. This edition is suitable for general-purpose server roles and provides all the necessary features and functionalities for running web applications and web services. Windows Server 2016 Datacenter edition is more suitable for large-scale virtualization and cloud deployments. Windows Server 2016 Professional edition is designed for individual users and small businesses. Windows Web Server 2016 is a specialized edition specifically for web hosting and running web applications, but it may not provide all the necessary features for a general-purpose server.

Explanation
The Data Deduplication service in Windows Server 2016 cannot be used on encrypted files because the service cannot read the contents of the encrypted files to identify duplicate data. The service also cannot be used on the boot volume because the operating system files are constantly changing and cannot be deduplicated. Similarly, the service cannot be used on the system volume because it contains critical operating system files that cannot be deduplicated. However, the ReFS data volume can be used for Data Deduplication as it is a file system that supports deduplication.

Explanation
In Windows Server 2016 Hyper-V infrastructure, you can create three types of VHD (Virtual Hard Disk): Fixed-size, Pass-through, and Differencing. Fixed-size VHDs have a predetermined size and allocate all the space upfront. Pass-through VHDs allow the virtual machine to directly access a physical disk. Differencing VHDs are created based on a parent VHD and only store the changes made to the parent disk, which helps save storage space.

Explanation
To perform a Nano Server installation on a physical server using Windows Server 2016, you need to create a VHD (Virtual Hard Disk) and deploy it as a bootable drive. This will allow you to install the Nano Server on the physical server. Additionally, you need to create a WIM (Windows Imaging Format) file, which is a compressed image file that contains the entire operating system installation. This WIM file will be used during the installation process to deploy the Nano Server image onto the physical server.

Explanation
The Azure Cloud Witness is the best choice for dynamically adjusting the witness vote based on the number of voting nodes in the cluster membership. Azure Cloud Witness uses Azure Blob Storage to maintain a lightweight and flexible quorum witness. It does not require any additional hardware or infrastructure, making it a cost-effective and easily scalable solution for a Windows Server 2016 stretch cluster across two datacenter locations.