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Question:
a) How many bits per second can be sent on a noiseless 4 MHz channel if four-level digital signals are used?
b) If a binary signal is sent over a 3 KHz channel whose SNR is 30 dB, what is the maximum achievable data rate?
c) A modem constellation diagram has data points at the following coordinates: (1,1), (1,-1), (-1,1) and (-1,-1). How many bits per second can a modem with such parameters achieve at 2400 baud?
d)
i) Using an example, explain how CRC is used for error control.
ii) A 50 Km long cable runs at the T1 data rate (1.544 Mbps). The propagation speed in the cable is 200 m/µs. How many bits fit in the cable?
e) Sketch the differential Manchester encoding for the following bit stream: 0011101
Social Network development in Java: Project Title: SUGGESTLOCAL (Nov 2006-April 2007) Role : Developer Domain : Social Network Client :
(a) Mention the five main security services. (b) What is a passive attack? Give an example of passive attack? (c) What four types of active attacks and mention their respecti
Let me know the details of protocol tcp/ip
Vulnerability Identification Specific avenues threat agents can exploit to attack an information asset are known as vulnerabilities. Examine how each threat can be generated and
QUESTION (In this question, you will need to use the ISO 27001:2005 and ISO 27002:2005 standards) For each of the situations below, comment on the following: 1. Mention
You have been asked to design a Banking Network with two primary types of locations. Branches that will have 3 subnets, one /25 subnet one /26 subnet for ABMS and one /26 s
The method used to check errors is checksum . In this method data is treated as a sequence of integers and their arithmetic sum is calculated and the carry bits are added to the
Question: a) Explain what the following intermediate systems are and how they work? i. Repeater ii. Bridge b) A service is formally specified by a set of primitives (op
What is the use of it
Do you have assignment solutions for CCE UPES MBA for oil and gas semester 2
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