76.
What are the possible ways of data exchange?
(i) Simplex
(ii)
Half-duplex
(iii)
Full-duplex.
77.
What is SAP?
Series
of interface points that allow other computers to communicate with the other
layers of network protocol stack.
78.
What do you meant by "triple X" in Networks?
The
function of PAD (Packet Assembler Disassembler) is described in a document
known as X.3. The standard protocol has been defined between the terminal and
the PAD, called X.28; another standard protocol exists between hte PAD and the
network, called X.29. Together, these three recommendations are often called
"triple X".
79.
What is frame relay, in which layer it comes?
Frame relay is a packet switching technology.
It will operate in the data link layer.
80.
What is terminal emulation, in which layer it comes?
Telnet is also called as terminal emulation.
It belongs to application layer.
81.
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.
82. 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.
83. 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.
84.
What is RAID?
A method for providing fault tolerance by
using multiple hard disk drives.
85.
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.
86.
What is B router?
Hybrid devices that combine the features of
both bridges and routers.
87. What is cladding?
A
layer of a glass surrounding the center fiber of glass inside a fiber-optic
cable.
88.
What is point-to-point protocol?
A
communications protocol used to connect computers to remote networking services
including Internet service providers.
89.
How Gateway is different from Routers?
A
gateway operates at the upper levels of the OSI model and translates
information between two completely different network architectures or data
formats.
90. What is attenuation?
The degeneration of a signal over distance on
a network cable is called attenuation.
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