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Frequency Division Multiplexing
Frequency division multiplexing (FDM) is an analogy technique that can be applied when the bandwidth of a link is greater than the combined bandwidths of the single to be transmitted. In FDM the bandwidth is devised into a number of frequency slots each of which can accommodate the single of an individual connection. The multiplexer assigns a frequency slot to each connection and uses modulation the place the single of the carries all the connections. The combined signal is transmitted and the de multiplexer recovers the single corresponding to each connection. Reducing the number of wires that need to be handled reduces the overall cost of the system.
Reliability is the probability of success ; where success is defined as compliance to specified requirements. A system or an item is considered reliable if it performs satisfactori
As there will be more devices there will be more traffic of information. We can include capacity to WAN by adding more links and packet switches. Packet switches use not have compu
Source to Destination Data Transfer - Datagram approach - Each packet is treated independently. - Every pkt will take its own path to reach the destination. - There i
Session layer examples are Netbios Names, SQL, NFS, X Windows, and RPC.
Encryption/decryption using by SSL Once a session is established, the SSL generates a session key using public-key encryption to exchange information between the client and ser
Company seldom uses a single router to connect its entire network for two purpose. Because the router must transmit every packet, the processor in a provided router is insuff
A default route is analogous to a default gateway. It is used to decrease the length of routing tables and to give complete routing capabilities when a router may not know the rout
ICMP is used to send error and control messages. Ping uses ICMP to carry the echo-request and echo-reply.
Q. Show about Alternate mark inversion? Bipolar AMI - Neutral, zero voltage represents binary 0 - Binary 1s symbolized by alternating positive and negative voltages
Determine the command that forces the router to load into ROM mode upon a reload? Ans) boot system rom ia the command that forces the router to load into ROM mode upon a reload
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