81. What is frame relay, in which layer it comes?
Frame relay is a packet switching technology. It will operate in the data link layer.
82. What is terminal emulation, in which layer it comes?
Telnet is also called as terminal emulation. It belongs to application layer.
83. What is Beaconing?
The process that allows a network to self-repair networks problems. The stations on the network notify the other stations on the ring when they are not receiving the transmissions. Beaconing is used in Token ring and FDDI networks.
84. What is redirector?
Redirector is software that intercepts file or prints I/O requests and translates them into network requests. This comes under presentation layer.
840 What is NETBIOS and NETBEUI?
NETBIOS is a programming interface that allows I/O requests to be sent to and received from a remote computer and it hides the networking hardware from applications.
NETBEUI is NetBIOS extended user interface. A transport protocol designed by microsoft and IBM for the use on small subnets.
86. What is RAID?
A method for providing fault tolerance by using multiple hard disk drives.
87. What is passive topology?
When the computers on the network simply listen and receive the signal, they are referred to as passive because they don't amplify the signal in any way. Example for passive topology -linear bus.
88. What is Brouter?
Hybrid devices that combine the features of both bridges and routers.
89. What is cladding?
A layer of a glass surrounding the center fiber of glass inside a fiber-optic cable.
90. What is point-to-point protocol?
A communications protocol used to connect computers to remote networking services including Internet service providers.
