Networking 10

/24

A network with the subnet mask 255.255.255.0 would have what CIDR block?

Routing prefix

In an IPv6 address, the first 64 bits of the address are known as what?​

A router

In order to allow communication between VLANs for exchange of data, what must be used?​

Virtual Server

​A server that exists as a virtual machine, created and managed by virtualization software on a host, or physical, computer.

bridge protocol data unit (BPDU)

​A software configuration that can be used to disable STP on specific ports, such as the port leading to the network's demarc. It prevents access to network links that should not be considered when plotting STP paths in a network.

Virtual Router Redundancy Protocol (VRRP)

​A standard that assigns a virtual IP address to a group of routers. At first, messages routed to the virtual IP address are handled by the master router. If the master router fails, backup routers stand in line to take over responsibility for the virtual IP address.

Vlan hopping attack

​An attack in which the attacker generates transmissions that appear, to the switch, to belong to a protected VLAN.

Native vlan

​An untagged VLAN on a switch that will automatically receive all untagged frames. Options for native VLANs vary according to the switch manufacturer and model

Hot Standby Router Protocol (HSRP)

​Cisco's proprietary standard, similar to VRRP, that assigns a virtual IP address to a group of routers. At first, messages routed to the virtual IP address are handled by the active router. If the active router fails, standby routers stand in line to take over responsibility for the virtual IP address.

24 bits

​How many bits of a Class A IP address are used for host information?

CIDR Block

​In CIDR notation, the forward slash plus the number of bits used for the network ID. For example, the CIDR block for 199.34.89.0/22 is /22.

In-band Management

​Telnet and SSH are called __________________ systems because they use the existing network and its protocols to interface with the switch.

In-band management

​Telnet and SSH are called __________________ systems because they use the existing network and its protocols to interface with the switch.

Trunk Ports

​The interface on a switch capable of managing traffic from multiple VLANs. A trunk is a link configured between two switches' trunk ports.

Access port

​The interface on a switch used for an end node. Devices connected to access ports are unaware of VLAN information

SDN

​The virtualization of network services in which a network controller manages these services instead of the services being directly managed by the hardware devices involved.

2h-2=z

​What is the formula for determining the number of possible hosts on a network?

Hypervisor

​What is the software that allows you to define VMs and manage resource allocation and sharing among them?

Virtual Switch

​What virtual, logically defined device operates at the Data Link layer to pass frames between nodes?

Bridge Mode

​Which network type allows a vNIC to access a network directly using the host machine's NIC?

Trunk port

​Which port on a switch manages traffic for multiple VLANs?

Virtual Router Redundancy Protocol (VRRP)

​Which protocol assigns a virtual IP to a group of routers?

host-only mode​

​Which virtual network type allows VMs to communicate with each other on the same host, but disallows communication with other nodes on the network?

DHCP Relay Agent

​While designing your network's VLAN topology, your team has decided to use a centrally managed DHCP server rather than creating a separate DHCP server for each VLAN. What software will you need?

NAT mode

​With which network connection type does the VM obtain IP addressing information from its host?