Virtual Machines

Correct Answer: Create a virtual machine from a template

The best way for a network administrator to quickly deploy a new web server on a virtual network would be to 'Create a virtual machine from a template'. This feature allows for rapid deployment of virtual machines with pre-configured settings, which can save a significant amount of time compared to manually configuring a new machine 'Manually install the web server' is not the best option because it can be time-consuming and prone to human error. 'Reuse an existing virtual machine' could lead to conflicts if the existing virtual machine is already in use or not configured correctly for the new task. 'Configure a physical server' is not relevant to the scenario because it involves a physical server rather than a virtual one. The question asked specifically about a virtual network, which implies the use of virtual machines.

Correct Answer: Use VLANs to separate the traffic

The best method to implement network traffic isolation between two environments such as production and development/test is to Use VLANs (Virtual Local Area Networks) to separate the traffic. Each VLAN creates its own broadcast domain which is necessary to isolate network traffic. Networks can be segmented into different VLANs in order to separate traffic. This is best practice in network design, providing security and management advantages. Other options are incorrect because: Connecting both environments to the same switch wouldn't provide any isolation as network traffic could potentially interfere with each other. Placing both environments in the same subnet also wouldn't offer any isolation, as they would be in the same broadcast domain. Using a single firewall for both environments wouldn't provide the necessary isolation and could easily lead to the development environment affecting the production environment.

Correct Answer: Insufficient resources allocated to the virtual firewall

The most likely reason for the network slowdown after implementing a new virtual firewall would be 'Insufficient resources allocated to the virtual firewall'. The virtual firewall, like any virtual infrastructure, shares resources with other potential workloads on the host system. Because the resources it uses (RAM, CPU, Disk I/O, Network I/O) are provided by the host and can be used by other virtual machine workloads, it may not be getting enough to function optimally, leading to a slowdown. The other options are less likely causes: 'Malware on the virtual firewall' would typically cause more specific problems rather than a general network slowdown. 'Incorrectly configured VLANs' could cause issues, but this would generally result in connectivity problems, not a slower network. 'Incompatible firewall software' could contribute to the problem, but it is more likely to lead to functionality issues rather than a general network slowdown.