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Q. Explain about Virtual Circuit Switching?
Virtual Circuit Switching
- All packets belong to a message (or) session is preserved.
- Single route is selected between source/destination.
- All packets obtain that route to reach destination.
- It requires a call setup to establish a virtual circuit. (Either permanent or switched type)
- Uses virtual circuit identifier for routing.
Network Devices a.Hub b.Repeater c.Bridge d.Gateway e.Switch f.Router Connecting devices can classified into networking and internetworking devices when
802.11a OFDM a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band b) Same as FDM except all sub bands are used by only one source at a given time c) Secu
CHARACTERIZATION OF NETWORKS: There are three kinds of characterization of networks. LOCAL AREA NETWORK (LAN): It is needed for a single building. METROPOLOTAN AREA
Q. What is Retransmission timer? Retransmission timer if an ACK is received previous to the timer goes off - destroy the timer if the timer goes off before ACK a
Simplicity The advantage of this approach is the simplicity of receiver buffering. The receiver need not buffer out of order packets the sender must maintain the upper an
what range is this
100Base-FX Utilizes two identical optical fibers in star topology One fiber holds frames from the station to hub one from hub to station Encoding is 4B/5B Si
Q. Show the Security Policy as well Integrated Security ? Security policy is on paper statement describing what assets are to be protected and why who is responsible and which
Advantage of guided media
I need to know what comes under this topic...I need to give a presentation speech for 10 minutes duration.
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