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computer networking top down approach chapter
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Quiz: logical communcation
Ans: mean
that from an application's perspective, it is as if the hosts running the
processes were
directly connected; in reality, the hosts may be on opposite sides of the
planet, con-
nected via numerous routers and a wide range of link types.
Quiz: UDP(User Datagram Protocol)
Ans: which provides an unreliable, connectionless service
to the invoking application
Quiz: TCP
(Transmission Control Protocol)
Ans: which provides a reliable, connection-oriented service to the invoking
application
Quiz: IP service model is a
best-effort delivery service
Ans: means that IP makes its
Sunday, 02 March 2025
,"best effort" to deliver segments between communicating hosts,
but it makes no
guarantees
Quiz: congestion control
(tcp)
Ans: prevents any one TCP con-
nection from swamping the links and routers between communicating hosts
with an
excessive amount of traffic
Quiz: sockets
Ans: doors through which data passes from the network to the
process and through which data passes from the process to the network.
Quiz: demultiplexing
Ans: t. This
job of delivering the data in a transport-layer segment to the correct socket
is
Quiz: multiplexing
Ans: job of gathering data chunks at the source host from different
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, sockets, encapsulating each data chunk with header information (that will
later be
used in demultiplexing) to create segments, and passing the segments to the
network
layer is
Quiz: well-known port num-
bers
Ans: he port numbers ranging from 0 to 1023
Quiz: source port number field and the destination port number field.
32 bits total
Ans: that sockets have unique
identifiers, and (2) that each segment have special fields that indicate the
socket to
which the segment is to be delivered. what are they
Quiz: TCP server application
Ans: "welcoming socket," that waits for connectionestablishment
Quiz: connectionless.
Ans: UDP is said to be
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