N10-007.7 Flashcards
What is channel bonding?
Channel bonding is when two adjacent channels within a given frequency band are combined to increase throughput between two or more wireless devices.
What is route poisoning?
Route poisoning is a method that prevents a certain network from sending data packets to a path destination that has already become invalid. For example, in Routing Information Protocol (RIP) the maximum is 15, so the hop count of the route to be poisoned is set to 16, making this path unreachable and will no longer be used for routing data.
What is a rollover cable?
A cable that is often used to connect a computer terminal to a router’s console port.
What is a collision domain?
A collision domain is, as the name implies, the part of a network where packet collisions can occur. A collision occurs when two devices send a packet at the same time on the shared network segment.
Collisions are often in a hub environment, because each port on a hub is in the same collision domain. By contrast, each port on a bridge, a switch or a router is in a separate collision domain.
Captive portals usually rely on _____, which uses ____ for authentication.
802.1x, RADIUS
What is frame relay?
Frame Relay is a WAN technology that specifies the physical and data link layers of digital telecommunications channels using a packet switching methodology. It supports the use of virtual circuits and point-to-multipoint connections.
TIA/EIA 568A Termination
Green/White, Green, Orange/White, Blue, Blue/White, Orange, Brown/White, Brown
TIA/EIA 568B Termination
Orange/White, Orange, Green/White, Blue, Blue/White, Green, Brown/White, Brown
EIGRP
Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced distance-vector routing protocol
RIP
The Routing Information Protocol (‘RIP’) is one of the oldest distance-vector routing protocols which employ the hop count as a routing metric.
How does RIP prevent routing loops?
RIP prevents routing loops by implementing a limit on the number of hops allowed in a path from source to destination. The largest number of hops allowed for RIP is 15, which limits the size of networks that RIP can support.
OSPF
Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks. It uses a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs)
Route poisoning
- prevents a router from sending packets through a route that has become invalid
- Distance-vector routing protocols in computer networks use route poisoning to indicate to other routers that a route is no longer reachable and should not be considered
- route poisoning provides for sending updates with unreachable hop counts immediately to all the nodes in the network.
Poison Reverse
The basic idea of poison reverse is to make sure that a path does not turn back into the same node if a cost has changed within the network. Used to solve the count to infinity problem
Miredo
Miredo is a Teredo tunneling client designed to allow full IPv6 connectivity to computer systems which are on the IPv4-based Internet but which have no direct native connection to an IPv6 network.
