19 Questions
What is the function of network function virtualization (NFV) as discussed in the text?
Moving network devices and infrastructure directly into the hypervisor
What is the primary role of a hypervisor, such as Virtual Machine Manager (VMM), in a virtual server environment?
Managing all operating systems, virtual systems, and virtual network connections
What is the purpose of vSwitches in a virtual server environment?
Connecting virtual machines within a hypervisor
What do virtual switches, or vSwitches, support in a virtual server environment?
NetFlow, LACP, and port mirroring
What is the role of virtual network interface cards (vNICs) in a virtual server environment?
Connecting virtual servers to the rest of the network
How are virtual network connections configured and managed in a virtual server environment?
Through the hypervisor
What provides uplinks from the virtual world to the physical world in a virtual server environment?
Physical network interfaces
What is the primary advantage of using virtual servers over physical server farms?
Reduced need for individual physical servers
Which technology moves network devices and infrastructure directly into the hypervisor in a virtual server environment?
Network Function Virtualization (NFV)
What is the main role of vSwitches in a virtual server environment?
Connecting virtual servers to the physical network
Which feature of vSwitches enables the combining of multiple network connections into a single aggregated link?
Link Aggregation Control Protocol (LACP)
What technology connects virtual servers to the rest of the network in a virtual server environment?
Physical network interfaces
In a virtual server environment, what does the hypervisor manage access to for all virtual systems?
CPU, memory, and network
What is the function of a hypervisor in a virtual server environment?
Managing access to CPU, memory, and network for all virtual systems
What is the primary advantage of using virtual servers over physical server farms?
Ability to easily deploy and manage virtual network devices
How do virtual switches, or vSwitches, support virtual machines within a hypervisor?
By enabling the combining of multiple network connections into a single aggregated link
What technology moves network devices and infrastructure directly into the hypervisor in a virtual server environment?
Network function virtualization (NFV)
What is the role of virtual network interface cards (vNICs) in a virtual server environment?
Connecting virtual servers to physical network interfaces
What do vSwitches primarily enable within a hypervisor in a virtual server environment?
Combining multiple network connections into a single aggregated link
Study Notes
- Companies have shifted from physical server farms to virtual servers in recent years.
- Instead of needing individual physical servers, virtual servers can be created within a single physical device.
- With network function virtualization (NFV), network devices and infrastructure are moved directly into the hypervisor.
- Network switching, routing, VLANs, firewalls, and other network functions are contained within the virtual system.
- Virtual network devices, such as switches and routers, can be easily deployed and managed within the hypervisor.
- A hypervisor, such as Virtual Machine Manager (VMM), manages all operating systems, virtual systems, and virtual network connections.
- The hypervisor manages access to CPU, memory, and network for all virtual systems.
- Virtual switches, or vSwitches, are used to connect virtual machines within a hypervisor.
- vSwitches support features like NetFlow, Link Aggregation Control Protocol (LACP), and port mirroring.
- Virtual network interface cards, or vNICs, connect virtual servers to the rest of the network.
- Virtual network connections are configured and managed through the hypervisor.
- Uplinks from the virtual world to the physical world are provided by physical network interfaces.
Test your knowledge of virtual servers, network function virtualization (NFV), hypervisors, vSwitches, and virtual network connections.
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