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What is VRC?
It is the most common and least costly mechanism for Error Detection. In VRC, a parity bit is added to each data unit so that the total number of 1s becomes even for even parity. It can spot all single-bit errors. It can spot burst errors only if the total number of errors in every data unit is odd.
Determine about the Security Systems If the company intends to connect to the Internet, then it should pay great attention to the configuration of firewalls. Just as no one wo
What is LRC? In LRC, a block of bits is separated into rows and a redundant row of bits is added to the whole block. It can detect burst errors. If two bits in one data unit ar
QUESTION 1. A system analyst has to install a particular type of topology in a textile industry. (a) Describe using diagrams the three most common topologies in terms of nod
You are requested to design a secure home or small scale network (Fig. 1) to satisfy the key concepts underlying computer and network security: confidentiality, integrity, availabi
Q. Comparison and Contrast between the OSI and TCP-IP Model? This presentation would discuss a few comparison and contrast between the 2 main reference models which use the con
Q. How two adjacent layers communicate in a layered network or what do you understand by Service Access Point? Ans: In layered network, each layer has several entities and enti
Priority and Reservation Higher priority stations may possibly access the token sooner Each station has a priority code Since token passes by station waiting to t
The "ipx delay number" command will permit an administrator to alter the default settings. Explain the default settings? Ans) For LAN interfaces, one tick; for WAN interfaces, s
Explain the technique- Backpressure This technique produces an effect same to backpressure in fluids flowing down a pipe. It includes link-by-link use of flow control in a dire
Serialized data is not generally sent at a uniform rate by a channel. Instead, there is usually a burst of regularly spaced binary data bits followed by a pause, after which the da
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