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50 Cards in this Set

  • Front
  • Back
Network traffic pattern where 20 percent of traffic stays in a local area, while 80 percent travels to or from a remote resource.
20/80 Rule
The layer of the network where end users are connected.
Access Layer
The GLBP router that answers all ARP requests for the virtual router address and assigns virtual MAC addresses to each router in the GLBP group.
Active Virtual Gateway (AVG)
In RSTP, a port other than the root port that has an alternative path to the root bridge.
Alternate Port
A method of passing frames and their VLAN associations over a trunk link, based on the IEEE 802.1Q standard.
802.1Q
A GLBP router that takes on a virtual MAC address and forwards traffic received on that address.
Active Virtual Forwarder (AVF)
A table used by CEF to collect the MAC address of nodes that can be reached in a single Layer 2 hop.
Adjacency Table
Also known as ARP spoofing. An attack whereby an attacker sends specially crafted ARP replies so that its own MAC address appears as the gateway or some other targeted host. From that time on, unsuspecting clients unknowingly send traffic to the attacker.
ARP Poisoning
An automated method to configure complex QoS parameters with a simple IOS macro command.
Auto-QoS
An access point that operates in a standalone mode, such that it is autonomous and can offer a functioning WLAN cell itself.
Autonomous Mode AP
In RSTP, a port that provides a redundant (but less desirable) connection to a segment where another switch port already connects.
Backup Port
The data message exchanged by switches participating in the Spanning Tree Protocol.
Bridge Protocol Data Unit / BPDU
A mechanism used by a device and a switch port to automatically negotiate the link speed and duplex mode.
Autonegotiation
An STP feature that can detect an indirect link failure and shorten the STP convergence time to 30 seconds by bypassing the Max Age timeout period.
BackboneFast
Packets are forwarded in the order in which they are received, regardless of any policy or the packet contents.
Best Effort Delivery
Prevents BPDUs from being sent or processed on a switch port.
BPDU Filtering
An STP feature that disables a switch port if any BPDU is received there.
BPDU Guard
The Extent of a network where a single broadcast frame or packet will be seen.
Broadcast Domain
An efficient topology-based system for forwarding IP packets.
Cisco Express Forwarding / CEF
The extent within a network that an Ethernet collision will be noticed or experienced.
Collision Domain
A condition where Ethernet frames are forwarded endlessly around a Layer 2 loop formed between switches.
Bridging Loop
The high-performance table used by a switch to correlate MAC addresses with the switch interfaces where they can be found.
Content-addressable Memory / CAM
A network design where the core and distribution layers are collapsed or combined into a single layer of switches.
Collapsed Core
A single instance of STP defined in the IEEE 802.1Q standard.
Common Spanning Tree (CST)
A type of secondary private VLAN; switch ports associated with a community VLAN can communicate with each other.
Community VLAN
Network traffic pattern where 20 percent of traffic stays in a local area, while 80 percent travels to or from a remote resource.
20/80 Rule
The layer of the network where end users are connected.
Access Layer
The GLBP router that answers all ARP requests for the virtual router address and assigns virtual MAC addresses to each router in the GLBP group.
Active Virtual Gateway (AVG)
In RSTP, a port other than the root port that has an alternative path to the root bridge.
Alternate Port
A method of passing frames and their VLAN associations over a trunk link, based on the IEEE 802.1Q standard.
802.1Q
A GLBP router that takes on a virtual MAC address and forwards traffic received on that address.
Active Virtual Forwarder (AVF)
A table used by CEF to collect the MAC address of nodes that can be reached in a single Layer 2 hop.
Adjacency Table
Also known as ARP spoofing. An attack whereby an attacker sends specially crafted ARP replies so that its own MAC address appears as the gateway or some other targeted host. From that time on, unsuspecting clients unknowingly send traffic to the attacker.
ARP Poisoning
An automated method to configure complex QoS parameters with a simple IOS macro command.
Auto-QoS
An access point that operates in a standalone mode, such that it is autonomous and can offer a functioning WLAN cell itself.
Autonomous Mode AP
In RSTP, a port that provides a redundant (but less desirable) connection to a segment where another switch port already connects.
Backup Port
The data message exchanged by switches participating in the Spanning Tree Protocol.
Bridge Protocol Data Unit / BPDU
A mechanism used by a device and a switch port to automatically negotiate the link speed and duplex mode.
Autonegotiation
An STP feature that can detect an indirect link failure and shorten the STP convergence time to 30 seconds by bypassing the Max Age timeout period.
BackboneFast
Packets are forwarded in the order in which they are received, regardless of any policy or the packet contents.
Best Effort Delivery
Prevents BPDUs from being sent or processed on a switch port.
BPDU Filtering
An STP feature that disables a switch port if any BPDU is received there.
BPDU Guard
The Extent of a network where a single broadcast frame or packet will be seen.
Broadcast Domain
An efficient topology-based system for forwarding IP packets.
Cisco Express Forwarding / CEF
The extent within a network that an Ethernet collision will be noticed or experienced.
Collision Domain
A condition where Ethernet frames are forwarded endlessly around a Layer 2 loop formed between switches.
Bridging Loop
The high-performance table used by a switch to correlate MAC addresses with the switch interfaces where they can be found.
Content-addressable Memory / CAM
A network design where the core and distribution layers are collapsed or combined into a single layer of switches.
Collapsed Core
A single instance of STP defined in the IEEE 802.1Q standard.
Common Spanning Tree (CST)
A type of secondary private VLAN; switch ports associated with a community VLAN can communicate with each other.
Community VLAN