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?