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CHARACTERIZATION OF NETWORKS:
There are three kinds of characterization of networks.
LOCAL AREA NETWORK (LAN):
It is needed for a single building.
METROPOLOTAN AREA NETWORK (MAN):
It is needed for a single city.
WIDE AREA NETWORK (WAN):
It is needed for a country level networking and even for continents.
DIFFERENCE BETWEEN LAN AND WAN:
Although LAN is for a local area but satellite bridge can extend LAN across longer distances. But it still could not accommodate arbitrarily several computers.
On the other hand WAN has to be scalable to long distances and several computers.
Store-and-forward switch The layer 2 switch accepts a frame on an input line, buffers it briefly, and then routes it to the appropriate output line. Cut-through switch
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Connection to backbone LAN In most cases, interconnection with stations on a wired backbone LAN is needed. For infrastructure wireless LANs, this is simply accomplished by the
Q. What is Two Types of Errors? Single-Bit Errors: Merely one bit in the data unit has changed Burst Errors of length 'n': 2 or more bits in the data unit have changed (
What is SAP? Series of interface points that permit other computers to interact with the other layers of network protocol stack is known as SAP.
Which switching technology can decrease the size of a broadcast domain? Ans) VLAN's are logical ways to break up a huge broadcast domain. To get from VLAN to VLAN you must ha
Half duplex is analogous to a one a lane bridge, it can handle traffic in both directions but no at the similar time.
Consider a signal x(t) = 10 cos(2πfct + 4 cos 2πfmt). Assume frequency modulation. The message frequency fm = 2:3 kHz. Calculate the modulation index and find the bandwidth when
Write the layer on which layer does L2F, PPTP and L2TP operate?
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