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What do mean by tunnel mode?
This is a mode of data exchange wherein two communicating computers do not use IPSec themselves. Instead, the gateway that is linking their LANs to the transit network makes a virtual tunnel that uses the IPSec protocol to secure all communication that passes by it.
The following issues are decided by the system in the process of message passing: 1) Whether the communication link is established or not 2) Whether the receiver is ready to
Explain the Multipath resistance The chipping codes used for CDMA not only exhibit low cross-correlation but also low autocorrelation. Thus, a version of the signal that is del
Recognize the two items that TCP and UDP share in common? Ans) TCP and UPD are both layer 4 Transport protocols and both use port number to recognize upper level applications.
What is DUAL in EIGRP?
WAN -Wide Area Network
A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; inverting bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make the
Question : (a) Several techniques are now available for users to connect to the Internet. (i) A modem is commonly used to dial up to the Internet. Why is a modem needed fo
Transmission robustness and security Unless properly designed, a wireless LAN might be interference prone and simply eavesdropped. The design of a wireless LAN must allow relia
How many types of twisted pair cable are there We can find two types of twisted pair cables, namely: Unshielded Twisted Pair Cable (UTP) and Shielded Twisted Pair Cable (STP).
What are the features of star and ring topology The three networks have following features: star: best case is = 2, average case is = 2, worst case is = 2 ring: best case
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